{******************************************************************************}
{                                                                              }
{ Windows User API interface Unit for Object Pascal                            }
{                                                                              }
{ Portions created by Microsoft are Copyright (C) 1995-2001 Microsoft          }
{ Corporation. All Rights Reserved.                                            }
{                                                                              }
{ The original file is: winuser.h, released June 2000. The original Pascal     }
{ code is: WinUser.pas, released December 2000. The initial developer of the   }
{ Pascal code is Marcel van Brakel (brakelm att chello dott nl).               }
{                                                                              }
{ Portions created by Marcel van Brakel are Copyright (C) 1999-2001            }
{ Marcel van Brakel. All Rights Reserved.                                      }
{                                                                              }
{ Obtained through: Joint Endeavour of Delphi Innovators (Project JEDI)        }
{                                                                              }
{ You may retrieve the latest version of this file at the Project JEDI         }
{ APILIB home page, located at http://jedi-apilib.sourceforge.net              }
{                                                                              }
{ The contents of this file are used with permission, subject to the Mozilla   }
{ Public License Version 1.1 (the "License"); you may not use this file except }
{ in compliance with the License. You may obtain a copy of the License at      }
{ http://www.mozilla.org/MPL/MPL-1.1.html                                      }
{                                                                              }
{ Software distributed under the License is distributed on an "AS IS" basis,   }
{ WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License for }
{ the specific language governing rights and limitations under the License.    }
{                                                                              }
{ Alternatively, the contents of this file may be used under the terms of the  }
{ GNU Lesser General Public License (the  "LGPL License"), in which case the   }
{ provisions of the LGPL License are applicable instead of those above.        }
{ If you wish to allow use of your version of this file only under the terms   }
{ of the LGPL License and not to allow others to use your version of this file }
{ under the MPL, indicate your decision by deleting  the provisions above and  }
{ replace  them with the notice and other provisions required by the LGPL      }
{ License.  If you do not delete the provisions above, a recipient may use     }
{ your version of this file under either the MPL or the LGPL License.          }
{                                                                              }
{ For more information about the LGPL: http://www.gnu.org/copyleft/lesser.html }
{                                                                              }
{******************************************************************************}

// $Id: JwaWinUser.pas,v 1.19 2007/09/14 06:48:48 marquardt Exp $

{$IFNDEF JWA_OMIT_SECTIONS}
unit JwaWinUser;

{$WEAKPACKAGEUNIT}
{$ENDIF JWA_OMIT_SECTIONS}

{$HPPEMIT ''}
{$HPPEMIT '#include "WinUser.h"'}
{$HPPEMIT ''}

{$IFNDEF JWA_OMIT_SECTIONS}

{$I jediapilib.inc}

interface

uses
  JwaWinBase, JwaWinGDI, JwaWinNT, JwaWinType;
{$ENDIF JWA_OMIT_SECTIONS}

{$IFNDEF JWA_IMPLEMENTATIONSECTION}
const
  UINT_MAX = UINT($FFFFFFFF); // from limits.h TODO
  {$EXTERNALSYM UINT_MAX}

type
  HDWP = HANDLE;
  {$EXTERNALSYM HDWP}

  MENUTEMPLATEA = Pointer;
  {$EXTERNALSYM MENUTEMPLATEA}
  MENUTEMPLATEW = Pointer;
  {$EXTERNALSYM MENUTEMPLATEW}

  {$IFDEF UNICODE}
  MENUTEMPLATE = MENUTEMPLATEW;
  {$EXTERNALSYM MENUTEMPLATE}
  {$ELSE}
  MENUTEMPLATE = MENUTEMPLATEA;
  {$EXTERNALSYM MENUTEMPLATE}
  {$ENDIF UNICODE}

  LPMENUTEMPLATEA = PVOID;
  {$EXTERNALSYM LPMENUTEMPLATEA}
  LPMENUTEMPLATEW = PVOID;
  {$EXTERNALSYM LPMENUTEMPLATEW}
  {$IFDEF UNICODE}
  LPMENUTEMPLATE = LPMENUTEMPLATEW;
  {$EXTERNALSYM LPMENUTEMPLATE}
  {$ELSE}
  LPMENUTEMPLATE = LPMENUTEMPLATEA;
  {$EXTERNALSYM LPMENUTEMPLATE}
  {$ENDIF UNICODE}

  WNDPROC = function(hWnd: HWND; uMsg: UINT; lParam: WPARAM; wParam: LPARAM): LRESULT; stdcall;
  {$EXTERNALSYM WNDPROC}

  DLGPROC = function(hwndDlg: HWND; wMsg: UINT; wParam: WPARAM; lParam: LPARAM): INT_PTR; stdcall;
  {$EXTERNALSYM DLGPROC}
  TIMERPROC = procedure(hwnd: HWND; uMsg: UINT; idEvent: UINT_PTR; dwTime: DWORD); stdcall;
  {$EXTERNALSYM TIMERPROC}
  GRAYSTRINGPROC = function(hdc: HDC; lpData: LPARAM; cchData: Integer): BOOL; stdcall;
  {$EXTERNALSYM GRAYSTRINGPROC}
  WNDENUMPROC = function(hwnd: HWND; lParam: LPARAM): BOOL; stdcall;
  {$EXTERNALSYM WNDENUMPROC}
  HOOKPROC = function(nCode: Integer; wParam: WPARAM; lParam: LPARAM): LRESULT; stdcall;
  {$EXTERNALSYM HOOKPROC}
  SENDASYNCPROC = procedure(hwnd: HWND; uMsg: UINT; dwData: ULONG_PTR; lResult: LRESULT); stdcall;
  {$EXTERNALSYM SENDASYNCPROC}

  PROPENUMPROCA = function(hwnd: HWND; lpszString: LPCSTR; hData: HANDLE): BOOL; stdcall;
  {$EXTERNALSYM PROPENUMPROCA}
  PROPENUMPROCW = function(hwnd: HWND; lpszString: LPCWSTR; hData: HANDLE): BOOL; stdcall;
  {$EXTERNALSYM PROPENUMPROCW}

  PROPENUMPROCEXA = function(hwnd: HWND; lpszString: LPSTR; hData: HANDLE; dwData: ULONG_PTR): BOOL; stdcall;
  {$EXTERNALSYM PROPENUMPROCEXA}
  PROPENUMPROCEXW = function(hwnd: HWND; lpszString: LPWSTR; hData: HANDLE; dwData: ULONG_PTR): BOOL; stdcall;
  {$EXTERNALSYM PROPENUMPROCEXW}

  EDITWORDBREAKPROCA = function(lpch: LPSTR; ichCurrent: Integer; cch, code: Integer): Integer; stdcall;
  {$EXTERNALSYM EDITWORDBREAKPROCA}
  EDITWORDBREAKPROCW = function(lpch: LPWSTR; ichCurrent: Integer; cch, code: Integer): Integer; stdcall;
  {$EXTERNALSYM EDITWORDBREAKPROCW}

  DRAWSTATEPROC = function(hdc: HDC; lData: LPARAM; wData: WPARAM; cx, cy: Integer): BOOL; stdcall;
  {$EXTERNALSYM DRAWSTATEPROC}

  {$IFDEF UNICODE}
  PROPENUMPROC = PROPENUMPROCW;
  {$EXTERNALSYM PROPENUMPROC}
  PROPENUMPROCEX = PROPENUMPROCEXW;
  {$EXTERNALSYM PROPENUMPROCEX}
  EDITWORDBREAKPROC = EDITWORDBREAKPROCW;
  {$EXTERNALSYM EDITWORDBREAKPROC}
  {$ELSE}
  PROPENUMPROC = PROPENUMPROCA;
  {$EXTERNALSYM PROPENUMPROC}
  PROPENUMPROCEX = PROPENUMPROCEXA;
  {$EXTERNALSYM PROPENUMPROCEX}
  EDITWORDBREAKPROC = EDITWORDBREAKPROCA;
  {$EXTERNALSYM EDITWORDBREAKPROC}
  {$ENDIF UNICODE}

  NAMEENUMPROCA = function(lpstr: LPSTR; lParam: LPARAM): BOOL; stdcall;
  {$EXTERNALSYM NAMEENUMPROCA}
  NAMEENUMPROCW = function(lpstr: LPWSTR; lParam: LPARAM): BOOL; stdcall;
  {$EXTERNALSYM NAMEENUMPROCW}

  WINSTAENUMPROCA = NAMEENUMPROCA;
  {$EXTERNALSYM WINSTAENUMPROCA}
  DESKTOPENUMPROCA = NAMEENUMPROCA;
  {$EXTERNALSYM DESKTOPENUMPROCA}
  WINSTAENUMPROCW = NAMEENUMPROCW;
  {$EXTERNALSYM WINSTAENUMPROCW}
  DESKTOPENUMPROCW = NAMEENUMPROCW;
  {$EXTERNALSYM DESKTOPENUMPROCW}

  {$IFDEF UNICODE}
  WINSTAENUMPROC = WINSTAENUMPROCW;
  {$EXTERNALSYM WINSTAENUMPROC}
  DESKTOPENUMPROC = DESKTOPENUMPROCW;
  {$EXTERNALSYM DESKTOPENUMPROC}
  {$ELSE}
  WINSTAENUMPROC = WINSTAENUMPROCA;
  {$EXTERNALSYM WINSTAENUMPROC}
  DESKTOPENUMPROC = DESKTOPENUMPROCA;
  {$EXTERNALSYM DESKTOPENUMPROC}
  {$ENDIF UNICODE}

function IS_INTRESOURCE(wInteger: WORD): BOOL;
{$EXTERNALSYM IS_INTRESOURCE}

type
  MAKEINTRESOURCEA = LPSTR;
  {$EXTERNALSYM MAKEINTRESOURCEA}
  MAKEINTRESOURCEW = LPWSTR;
  {$EXTERNALSYM MAKEINTRESOURCEW}
  {$IFDEF UNICODE}
  MAKEINTRESOURCE = MAKEINTRESOURCEW;
  {$EXTERNALSYM MAKEINTRESOURCE}
  {$ELSE}
  MAKEINTRESOURCE = MAKEINTRESOURCEA;
  {$EXTERNALSYM MAKEINTRESOURCE}
  {$ENDIF UNICODE}

//
// Predefined Resource Types
//

const
  RT_CURSOR       = MAKEINTRESOURCE(1);
  {$EXTERNALSYM RT_CURSOR}
  RT_BITMAP       = MAKEINTRESOURCE(2);
  {$EXTERNALSYM RT_BITMAP}
  RT_ICON         = MAKEINTRESOURCE(3);
  {$EXTERNALSYM RT_ICON}
  RT_MENU         = MAKEINTRESOURCE(4);
  {$EXTERNALSYM RT_MENU}
  RT_DIALOG       = MAKEINTRESOURCE(5);
  {$EXTERNALSYM RT_DIALOG}
  RT_STRING       = MAKEINTRESOURCE(6);
  {$EXTERNALSYM RT_STRING}
  RT_FONTDIR      = MAKEINTRESOURCE(7);
  {$EXTERNALSYM RT_FONTDIR}
  RT_FONT         = MAKEINTRESOURCE(8);
  {$EXTERNALSYM RT_FONT}
  RT_ACCELERATOR  = MAKEINTRESOURCE(9);
  {$EXTERNALSYM RT_ACCELERATOR}
  RT_RCDATA       = MAKEINTRESOURCE(10);
  {$EXTERNALSYM RT_RCDATA}
  RT_MESSAGETABLE = MAKEINTRESOURCE(11);
  {$EXTERNALSYM RT_MESSAGETABLE}

  DIFFERENCE = 11;
  {$EXTERNALSYM DIFFERENCE}

  RT_GROUP_CURSOR = MAKEINTRESOURCE(ULONG_PTR(RT_CURSOR) + DIFFERENCE);
  {$EXTERNALSYM RT_GROUP_CURSOR}
  RT_GROUP_ICON = MAKEINTRESOURCE(ULONG_PTR(RT_ICON) + DIFFERENCE);
  {$EXTERNALSYM RT_GROUP_ICON}
  RT_VERSION    = MAKEINTRESOURCE(16);
  {$EXTERNALSYM RT_VERSION}
  RT_DLGINCLUDE = MAKEINTRESOURCE(17);
  {$EXTERNALSYM RT_DLGINCLUDE}
  RT_PLUGPLAY   = MAKEINTRESOURCE(19);
  {$EXTERNALSYM RT_PLUGPLAY}
  RT_VXD        = MAKEINTRESOURCE(20);
  {$EXTERNALSYM RT_VXD}
  RT_ANICURSOR  = MAKEINTRESOURCE(21);
  {$EXTERNALSYM RT_ANICURSOR}
  RT_ANIICON    = MAKEINTRESOURCE(22);
  {$EXTERNALSYM RT_ANIICON}
  RT_HTML       = MAKEINTRESOURCE(23);
  {$EXTERNALSYM RT_HTML}
  RT_MANIFEST   = MAKEINTRESOURCE(24);
  CREATEPROCESS_MANIFEST_RESOURCE_ID = MAKEINTRESOURCE(1);
  {$EXTERNALSYM CREATEPROCESS_MANIFEST_RESOURCE_ID}
  ISOLATIONAWARE_MANIFEST_RESOURCE_ID = MAKEINTRESOURCE(2);
  {$EXTERNALSYM ISOLATIONAWARE_MANIFEST_RESOURCE_ID}
  ISOLATIONAWARE_NOSTATICIMPORT_MANIFEST_RESOURCE_ID = MAKEINTRESOURCE(3);
  {$EXTERNALSYM ISOLATIONAWARE_NOSTATICIMPORT_MANIFEST_RESOURCE_ID}
  MINIMUM_RESERVED_MANIFEST_RESOURCE_ID = MAKEINTRESOURCE(1{inclusive});
  {$EXTERNALSYM MINIMUM_RESERVED_MANIFEST_RESOURCE_ID}
  MAXIMUM_RESERVED_MANIFEST_RESOURCE_ID = MAKEINTRESOURCE(16{inclusive});
  {$EXTERNALSYM MAXIMUM_RESERVED_MANIFEST_RESOURCE_ID}

type
  va_list = PChar;
  {$EXTERNALSYM va_list}

function wvsprintfA(Output: LPSTR; Format: LPCSTR; arglist: va_list): Integer; stdcall;
{$EXTERNALSYM wvsprintfA}
function wvsprintfW(Output: LPWSTR; Format: LPCWSTR; arglist: va_list): Integer; stdcall;
{$EXTERNALSYM wvsprintfW}
function wvsprintf(Output: LPTSTR; Format: LPCTSTR; arglist: va_list): Integer; stdcall;
{$EXTERNALSYM wvsprintf}

function wsprintfA(Output: LPSTR; Format: LPCSTR): Integer; stdcall;
{$EXTERNALSYM wsprintfA}
function wsprintfW(Output: LPWSTR; Format: LPCWSTR): Integer; stdcall;
{$EXTERNALSYM wsprintfW}
function wsprintf(Output: LPTSTR; Format: LPCTSTR): Integer; stdcall;
{$EXTERNALSYM wsprintf}

//
// SPI_SETDESKWALLPAPER defined constants
//

const
  SETWALLPAPER_DEFAULT = LPWSTR(-1);
  {$EXTERNALSYM SETWALLPAPER_DEFAULT}

//
// Scroll Bar Constants
//

  SB_HORZ = 0;
  {$EXTERNALSYM SB_HORZ}
  SB_VERT = 1;
  {$EXTERNALSYM SB_VERT}
  SB_CTL  = 2;
  {$EXTERNALSYM SB_CTL}
  SB_BOTH = 3;
  {$EXTERNALSYM SB_BOTH}

//
// Scroll Bar Commands
//

  SB_LINEUP        = 0;
  {$EXTERNALSYM SB_LINEUP}
  SB_LINELEFT      = 0;
  {$EXTERNALSYM SB_LINELEFT}
  SB_LINEDOWN      = 1;
  {$EXTERNALSYM SB_LINEDOWN}
  SB_LINERIGHT     = 1;
  {$EXTERNALSYM SB_LINERIGHT}
  SB_PAGEUP        = 2;
  {$EXTERNALSYM SB_PAGEUP}
  SB_PAGELEFT      = 2;
  {$EXTERNALSYM SB_PAGELEFT}
  SB_PAGEDOWN      = 3;
  {$EXTERNALSYM SB_PAGEDOWN}
  SB_PAGERIGHT     = 3;
  {$EXTERNALSYM SB_PAGERIGHT}
  SB_THUMBPOSITION = 4;
  {$EXTERNALSYM SB_THUMBPOSITION}
  SB_THUMBTRACK    = 5;
  {$EXTERNALSYM SB_THUMBTRACK}
  SB_TOP           = 6;
  {$EXTERNALSYM SB_TOP}
  SB_LEFT          = 6;
  {$EXTERNALSYM SB_LEFT}
  SB_BOTTOM        = 7;
  {$EXTERNALSYM SB_BOTTOM}
  SB_RIGHT         = 7;
  {$EXTERNALSYM SB_RIGHT}
  SB_ENDSCROLL     = 8;
  {$EXTERNALSYM SB_ENDSCROLL}

//
// ShowWindow() Commands
//

  SW_HIDE            = 0;
  {$EXTERNALSYM SW_HIDE}
  SW_SHOWNORMAL      = 1;
  {$EXTERNALSYM SW_SHOWNORMAL}
  SW_NORMAL          = 1;
  {$EXTERNALSYM SW_NORMAL}
  SW_SHOWMINIMIZED   = 2;
  {$EXTERNALSYM SW_SHOWMINIMIZED}
  SW_SHOWMAXIMIZED   = 3;
  {$EXTERNALSYM SW_SHOWMAXIMIZED}
  SW_MAXIMIZE        = 3;
  {$EXTERNALSYM SW_MAXIMIZE}
  SW_SHOWNOACTIVATE  = 4;
  {$EXTERNALSYM SW_SHOWNOACTIVATE}
  SW_SHOW            = 5;
  {$EXTERNALSYM SW_SHOW}
  SW_MINIMIZE        = 6;
  {$EXTERNALSYM SW_MINIMIZE}
  SW_SHOWMINNOACTIVE = 7;
  {$EXTERNALSYM SW_SHOWMINNOACTIVE}
  SW_SHOWNA          = 8;
  {$EXTERNALSYM SW_SHOWNA}
  SW_RESTORE         = 9;
  {$EXTERNALSYM SW_RESTORE}
  SW_SHOWDEFAULT     = 10;
  {$EXTERNALSYM SW_SHOWDEFAULT}
  SW_FORCEMINIMIZE   = 11;
  {$EXTERNALSYM SW_FORCEMINIMIZE}
  SW_MAX             = 11;
  {$EXTERNALSYM SW_MAX}

//
// Old ShowWindow() Commands
//

  HIDE_WINDOW         = 0;
  {$EXTERNALSYM HIDE_WINDOW}
  SHOW_OPENWINDOW     = 1;
  {$EXTERNALSYM SHOW_OPENWINDOW}
  SHOW_ICONWINDOW     = 2;
  {$EXTERNALSYM SHOW_ICONWINDOW}
  SHOW_FULLSCREEN     = 3;
  {$EXTERNALSYM SHOW_FULLSCREEN}
  SHOW_OPENNOACTIVATE = 4;
  {$EXTERNALSYM SHOW_OPENNOACTIVATE}

//
// Identifiers for the WM_SHOWWINDOW message
//

  SW_PARENTCLOSING = 1;
  {$EXTERNALSYM SW_PARENTCLOSING}
  SW_OTHERZOOM     = 2;
  {$EXTERNALSYM SW_OTHERZOOM}
  SW_PARENTOPENING = 3;
  {$EXTERNALSYM SW_PARENTOPENING}
  SW_OTHERUNZOOM   = 4;
  {$EXTERNALSYM SW_OTHERUNZOOM}

//
// AnimateWindow() Commands
//

  AW_HOR_POSITIVE = $00000001;
  {$EXTERNALSYM AW_HOR_POSITIVE}
  AW_HOR_NEGATIVE = $00000002;
  {$EXTERNALSYM AW_HOR_NEGATIVE}
  AW_VER_POSITIVE = $00000004;
  {$EXTERNALSYM AW_VER_POSITIVE}
  AW_VER_NEGATIVE = $00000008;
  {$EXTERNALSYM AW_VER_NEGATIVE}
  AW_CENTER       = $00000010;
  {$EXTERNALSYM AW_CENTER}
  AW_HIDE         = $00010000;
  {$EXTERNALSYM AW_HIDE}
  AW_ACTIVATE     = $00020000;
  {$EXTERNALSYM AW_ACTIVATE}
  AW_SLIDE        = $00040000;
  {$EXTERNALSYM AW_SLIDE}
  AW_BLEND        = $00080000;
  {$EXTERNALSYM AW_BLEND}

//
// WM_KEYUP/DOWN/CHAR HIWORD(lParam) flags
//

  KF_EXTENDED = $0100;
  {$EXTERNALSYM KF_EXTENDED}
  KF_DLGMODE  = $0800;
  {$EXTERNALSYM KF_DLGMODE}
  KF_MENUMODE = $1000;
  {$EXTERNALSYM KF_MENUMODE}
  KF_ALTDOWN  = $2000;
  {$EXTERNALSYM KF_ALTDOWN}
  KF_REPEAT   = $4000;
  {$EXTERNALSYM KF_REPEAT}
  KF_UP       = $8000;
  {$EXTERNALSYM KF_UP}

//
// Virtual Keys, Standard Set
//

  VK_LBUTTON = $01;
  {$EXTERNALSYM VK_LBUTTON}
  VK_RBUTTON = $02;
  {$EXTERNALSYM VK_RBUTTON}
  VK_CANCEL  = $03;
  {$EXTERNALSYM VK_CANCEL}
  VK_MBUTTON = $04; // NOT contiguous with L & RBUTTON
  {$EXTERNALSYM VK_MBUTTON}

  {$IFDEF WIN98ME_UP}
  VK_XBUTTON1 = $05; // NOT contiguous with L & RBUTTON
  {$EXTERNALSYM VK_XBUTTON1}
  VK_XBUTTON2 = $06; // NOT contiguous with L & RBUTTON
  {$EXTERNALSYM VK_XBUTTON2}
  {$ENDIF WIN98ME_UP}

//
// 0x07 : unassigned
//

  VK_BACK = $08;
  {$EXTERNALSYM VK_BACK}
  VK_TAB  = $09;
  {$EXTERNALSYM VK_TAB}

//
// 0x0A - 0x0B : reserved
//

  VK_CLEAR  = $0C;
  {$EXTERNALSYM VK_CLEAR}
  VK_RETURN = $0D;
  {$EXTERNALSYM VK_RETURN}

  VK_SHIFT   = $10;
  {$EXTERNALSYM VK_SHIFT}
  VK_CONTROL = $11;
  {$EXTERNALSYM VK_CONTROL}
  VK_MENU    = $12;
  {$EXTERNALSYM VK_MENU}
  VK_PAUSE   = $13;
  {$EXTERNALSYM VK_PAUSE}
  VK_CAPITAL = $14;
  {$EXTERNALSYM VK_CAPITAL}

  VK_KANA    = $15;
  {$EXTERNALSYM VK_KANA}
  VK_HANGEUL = $15; // old name - should be here for compatibility
  {$EXTERNALSYM VK_HANGEUL}
  VK_HANGUL  = $15;
  {$EXTERNALSYM VK_HANGUL}
  VK_JUNJA   = $17;
  {$EXTERNALSYM VK_JUNJA}
  VK_FINAL   = $18;
  {$EXTERNALSYM VK_FINAL}
  VK_HANJA   = $19;
  {$EXTERNALSYM VK_HANJA}
  VK_KANJI   = $19;
  {$EXTERNALSYM VK_KANJI}

  VK_ESCAPE = $1B;
  {$EXTERNALSYM VK_ESCAPE}

  VK_CONVERT    = $1C;
  {$EXTERNALSYM VK_CONVERT}
  VK_NONCONVERT = $1D;
  {$EXTERNALSYM VK_NONCONVERT}
  VK_ACCEPT     = $1E;
  {$EXTERNALSYM VK_ACCEPT}
  VK_MODECHANGE = $1F;
  {$EXTERNALSYM VK_MODECHANGE}

  VK_SPACE    = $20;
  {$EXTERNALSYM VK_SPACE}
  VK_PRIOR    = $21;
  {$EXTERNALSYM VK_PRIOR}
  VK_NEXT     = $22;
  {$EXTERNALSYM VK_NEXT}
  VK_END      = $23;
  {$EXTERNALSYM VK_END}
  VK_HOME     = $24;
  {$EXTERNALSYM VK_HOME}
  VK_LEFT     = $25;
  {$EXTERNALSYM VK_LEFT}
  VK_UP       = $26;
  {$EXTERNALSYM VK_UP}
  VK_RIGHT    = $27;
  {$EXTERNALSYM VK_RIGHT}
  VK_DOWN     = $28;
  {$EXTERNALSYM VK_DOWN}
  VK_SELECT   = $29;
  {$EXTERNALSYM VK_SELECT}
  VK_PRINT    = $2A;
  {$EXTERNALSYM VK_PRINT}
  VK_EXECUTE  = $2B;
  {$EXTERNALSYM VK_EXECUTE}
  VK_SNAPSHOT = $2C;
  {$EXTERNALSYM VK_SNAPSHOT}
  VK_INSERT   = $2D;
  {$EXTERNALSYM VK_INSERT}
  VK_DELETE   = $2E;
  {$EXTERNALSYM VK_DELETE}
  VK_HELP     = $2F;
  {$EXTERNALSYM VK_HELP}

//
// VK_0 - VK_9 are the same as ASCII '0' - '9' (0x30 - 0x39)
// 0x40 : unassigned
// VK_A - VK_Z are the same as ASCII 'A' - 'Z' (0x41 - 0x5A)
//

  VK_LWIN = $5B;
  {$EXTERNALSYM VK_LWIN}
  VK_RWIN = $5C;
  {$EXTERNALSYM VK_RWIN}
  VK_APPS = $5D;
  {$EXTERNALSYM VK_APPS}

//
// 0x5E : reserved
//

  VK_SLEEP = $5F;
  {$EXTERNALSYM VK_SLEEP}

  VK_NUMPAD0   = $60;
  {$EXTERNALSYM VK_NUMPAD0}
  VK_NUMPAD1   = $61;
  {$EXTERNALSYM VK_NUMPAD1}
  VK_NUMPAD2   = $62;
  {$EXTERNALSYM VK_NUMPAD2}
  VK_NUMPAD3   = $63;
  {$EXTERNALSYM VK_NUMPAD3}
  VK_NUMPAD4   = $64;
  {$EXTERNALSYM VK_NUMPAD4}
  VK_NUMPAD5   = $65;
  {$EXTERNALSYM VK_NUMPAD5}
  VK_NUMPAD6   = $66;
  {$EXTERNALSYM VK_NUMPAD6}
  VK_NUMPAD7   = $67;
  {$EXTERNALSYM VK_NUMPAD7}
  VK_NUMPAD8   = $68;
  {$EXTERNALSYM VK_NUMPAD8}
  VK_NUMPAD9   = $69;
  {$EXTERNALSYM VK_NUMPAD9}
  VK_MULTIPLY  = $6A;
  {$EXTERNALSYM VK_MULTIPLY}
  VK_ADD       = $6B;
  {$EXTERNALSYM VK_ADD}
  VK_SEPARATOR = $6C;
  {$EXTERNALSYM VK_SEPARATOR}
  VK_SUBTRACT  = $6D;
  {$EXTERNALSYM VK_SUBTRACT}
  VK_DECIMAL   = $6E;
  {$EXTERNALSYM VK_DECIMAL}
  VK_DIVIDE    = $6F;
  {$EXTERNALSYM VK_DIVIDE}
  VK_F1        = $70;
  {$EXTERNALSYM VK_F1}
  VK_F2        = $71;
  {$EXTERNALSYM VK_F2}
  VK_F3        = $72;
  {$EXTERNALSYM VK_F3}
  VK_F4        = $73;
  {$EXTERNALSYM VK_F4}
  VK_F5        = $74;
  {$EXTERNALSYM VK_F5}
  VK_F6        = $75;
  {$EXTERNALSYM VK_F6}
  VK_F7        = $76;
  {$EXTERNALSYM VK_F7}
  VK_F8        = $77;
  {$EXTERNALSYM VK_F8}
  VK_F9        = $78;
  {$EXTERNALSYM VK_F9}
  VK_F10       = $79;
  {$EXTERNALSYM VK_F10}
  VK_F11       = $7A;
  {$EXTERNALSYM VK_F11}
  VK_F12       = $7B;
  {$EXTERNALSYM VK_F12}
  VK_F13       = $7C;
  {$EXTERNALSYM VK_F13}
  VK_F14       = $7D;
  {$EXTERNALSYM VK_F14}
  VK_F15       = $7E;
  {$EXTERNALSYM VK_F15}
  VK_F16       = $7F;
  {$EXTERNALSYM VK_F16}
  VK_F17       = $80;
  {$EXTERNALSYM VK_F17}
  VK_F18       = $81;
  {$EXTERNALSYM VK_F18}
  VK_F19       = $82;
  {$EXTERNALSYM VK_F19}
  VK_F20       = $83;
  {$EXTERNALSYM VK_F20}
  VK_F21       = $84;
  {$EXTERNALSYM VK_F21}
  VK_F22       = $85;
  {$EXTERNALSYM VK_F22}
  VK_F23       = $86;
  {$EXTERNALSYM VK_F23}
  VK_F24       = $87;
  {$EXTERNALSYM VK_F24}

//
// 0x88 - 0x8F : unassigned
//

  VK_NUMLOCK = $90;
  {$EXTERNALSYM VK_NUMLOCK}
  VK_SCROLL  = $91;
  {$EXTERNALSYM VK_SCROLL}

//
// NEC PC-9800 kbd definitions
//

  VK_OEM_NEC_EQUAL = $92; // '=' key on numpad
  {$EXTERNALSYM VK_OEM_NEC_EQUAL}

//
// Fujitsu/OASYS kbd definitions
//

  VK_OEM_FJ_JISHO   = $92; // 'Dictionary' key
  {$EXTERNALSYM VK_OEM_FJ_JISHO}
  VK_OEM_FJ_MASSHOU = $93; // 'Unregister word' key
  {$EXTERNALSYM VK_OEM_FJ_MASSHOU}
  VK_OEM_FJ_TOUROKU = $94; // 'Register word' key
  {$EXTERNALSYM VK_OEM_FJ_TOUROKU}
  VK_OEM_FJ_LOYA    = $95; // 'Left OYAYUBI' key
  {$EXTERNALSYM VK_OEM_FJ_LOYA}
  VK_OEM_FJ_ROYA    = $96; // 'Right OYAYUBI' key
  {$EXTERNALSYM VK_OEM_FJ_ROYA}

//
// 0x97 - 0x9F : unassigned
//

//
// VK_L* & VK_R* - left and right Alt, Ctrl and Shift virtual keys.
// Used only as parameters to GetAsyncKeyState() and GetKeyState().
// No other API or message will distinguish left and right keys in this way.
//

  VK_LSHIFT   = $A0;
  {$EXTERNALSYM VK_LSHIFT}
  VK_RSHIFT   = $A1;
  {$EXTERNALSYM VK_RSHIFT}
  VK_LCONTROL = $A2;
  {$EXTERNALSYM VK_LCONTROL}
  VK_RCONTROL = $A3;
  {$EXTERNALSYM VK_RCONTROL}
  VK_LMENU    = $A4;
  {$EXTERNALSYM VK_LMENU}
  VK_RMENU    = $A5;
  {$EXTERNALSYM VK_RMENU}

  {$IFDEF WIN98ME_UP}

  VK_BROWSER_BACK      = $A6;
  {$EXTERNALSYM VK_BROWSER_BACK}
  VK_BROWSER_FORWARD   = $A7;
  {$EXTERNALSYM VK_BROWSER_FORWARD}
  VK_BROWSER_REFRESH   = $A8;
  {$EXTERNALSYM VK_BROWSER_REFRESH}
  VK_BROWSER_STOP      = $A9;
  {$EXTERNALSYM VK_BROWSER_STOP}
  VK_BROWSER_SEARCH    = $AA;
  {$EXTERNALSYM VK_BROWSER_SEARCH}
  VK_BROWSER_FAVORITES = $AB;
  {$EXTERNALSYM VK_BROWSER_FAVORITES}
  VK_BROWSER_HOME      = $AC;
  {$EXTERNALSYM VK_BROWSER_HOME}

  VK_VOLUME_MUTE         = $AD;
  {$EXTERNALSYM VK_VOLUME_MUTE}
  VK_VOLUME_DOWN         = $AE;
  {$EXTERNALSYM VK_VOLUME_DOWN}
  VK_VOLUME_UP           = $AF;
  {$EXTERNALSYM VK_VOLUME_UP}
  VK_MEDIA_NEXT_TRACK    = $B0;
  {$EXTERNALSYM VK_MEDIA_NEXT_TRACK}
  VK_MEDIA_PREV_TRACK    = $B1;
  {$EXTERNALSYM VK_MEDIA_PREV_TRACK}
  VK_MEDIA_STOP          = $B2;
  {$EXTERNALSYM VK_MEDIA_STOP}
  VK_MEDIA_PLAY_PAUSE    = $B3;
  {$EXTERNALSYM VK_MEDIA_PLAY_PAUSE}
  VK_LAUNCH_MAIL         = $B4;
  {$EXTERNALSYM VK_LAUNCH_MAIL}
  VK_LAUNCH_MEDIA_SELECT = $B5;
  {$EXTERNALSYM VK_LAUNCH_MEDIA_SELECT}
  VK_LAUNCH_APP1         = $B6;
  {$EXTERNALSYM VK_LAUNCH_APP1}
  VK_LAUNCH_APP2         = $B7;
  {$EXTERNALSYM VK_LAUNCH_APP2}

  {$ENDIF WIN98ME_UP}

//
// 0xB8 - 0xB9 : reserved
//

  VK_OEM_1      = $BA; // ';:' for US
  {$EXTERNALSYM VK_OEM_1}
  VK_OEM_PLUS   = $BB; // '+' any country
  {$EXTERNALSYM VK_OEM_PLUS}
  VK_OEM_COMMA  = $BC; // ',' any country
  {$EXTERNALSYM VK_OEM_COMMA}
  VK_OEM_MINUS  = $BD; // '-' any country
  {$EXTERNALSYM VK_OEM_MINUS}
  VK_OEM_PERIOD = $BE; // '.' any country
  {$EXTERNALSYM VK_OEM_PERIOD}
  VK_OEM_2      = $BF; // '/?' for US
  {$EXTERNALSYM VK_OEM_2}
  VK_OEM_3      = $C0; // '`~' for US
  {$EXTERNALSYM VK_OEM_3}

//
// 0xC1 - 0xD7 : reserved
//

//
// 0xD8 - 0xDA : unassigned
//

  VK_OEM_4 = $DB; // '[{' for US
  {$EXTERNALSYM VK_OEM_4}
  VK_OEM_5 = $DC; // '\|' for US
  {$EXTERNALSYM VK_OEM_5}
  VK_OEM_6 = $DD; // ']}' for US
  {$EXTERNALSYM VK_OEM_6}
  VK_OEM_7 = $DE; // ''"' for US
  {$EXTERNALSYM VK_OEM_7}
  VK_OEM_8 = $DF;
  {$EXTERNALSYM VK_OEM_8}

//
// 0xE0 : reserved
//

//
// Various extended or enhanced keyboards
//

  VK_OEM_AX   = $E1; // 'AX' key on Japanese AX kbd
  {$EXTERNALSYM VK_OEM_AX}
  VK_OEM_102  = $E2; // "<>" or "\|" on RT 102-key kbd.
  {$EXTERNALSYM VK_OEM_102}
  VK_ICO_HELP = $E3; // Help key on ICO
  {$EXTERNALSYM VK_ICO_HELP}
  VK_ICO_00   = $E4; // 00 key on ICO
  {$EXTERNALSYM VK_ICO_00}

  VK_PROCESSKEY = $E5;
  {$EXTERNALSYM VK_PROCESSKEY}

  VK_ICO_CLEAR = $E6;
  {$EXTERNALSYM VK_ICO_CLEAR}

  {$IFDEF WIN98ME_UP}
  VK_PACKET = $E7;
  {$EXTERNALSYM VK_PACKET}
  {$ENDIF WIN98ME_UP}

//
// 0xE8 : unassigned
//

//
// Nokia/Ericsson definitions
//

  VK_OEM_RESET   = $E9;
  {$EXTERNALSYM VK_OEM_RESET}
  VK_OEM_JUMP    = $EA;
  {$EXTERNALSYM VK_OEM_JUMP}
  VK_OEM_PA1     = $EB;
  {$EXTERNALSYM VK_OEM_PA1}
  VK_OEM_PA2     = $EC;
  {$EXTERNALSYM VK_OEM_PA2}
  VK_OEM_PA3     = $ED;
  {$EXTERNALSYM VK_OEM_PA3}
  VK_OEM_WSCTRL  = $EE;
  {$EXTERNALSYM VK_OEM_WSCTRL}
  VK_OEM_CUSEL   = $EF;
  {$EXTERNALSYM VK_OEM_CUSEL}
  VK_OEM_ATTN    = $F0;
  {$EXTERNALSYM VK_OEM_ATTN}
  VK_OEM_FINISH  = $F1;
  {$EXTERNALSYM VK_OEM_FINISH}
  VK_OEM_COPY    = $F2;
  {$EXTERNALSYM VK_OEM_COPY}
  VK_OEM_AUTO    = $F3;
  {$EXTERNALSYM VK_OEM_AUTO}
  VK_OEM_ENLW    = $F4;
  {$EXTERNALSYM VK_OEM_ENLW}
  VK_OEM_BACKTAB = $F5;
  {$EXTERNALSYM VK_OEM_BACKTAB}

  VK_ATTN      = $F6;
  {$EXTERNALSYM VK_ATTN}
  VK_CRSEL     = $F7;
  {$EXTERNALSYM VK_CRSEL}
  VK_EXSEL     = $F8;
  {$EXTERNALSYM VK_EXSEL}
  VK_EREOF     = $F9;
  {$EXTERNALSYM VK_EREOF}
  VK_PLAY      = $FA;
  {$EXTERNALSYM VK_PLAY}
  VK_ZOOM      = $FB;
  {$EXTERNALSYM VK_ZOOM}
  VK_NONAME    = $FC;
  {$EXTERNALSYM VK_NONAME}
  VK_PA1       = $FD;
  {$EXTERNALSYM VK_PA1}
  VK_OEM_CLEAR = $FE;
  {$EXTERNALSYM VK_OEM_CLEAR}

//
// 0xFF : reserved
//

//
// SetWindowsHook() codes
//

  WH_MIN             = DWORD(-1);
  {$EXTERNALSYM WH_MIN}
  WH_MSGFILTER       = DWORD(-1);
  {$EXTERNALSYM WH_MSGFILTER}
  WH_JOURNALRECORD   = 0;
  {$EXTERNALSYM WH_JOURNALRECORD}
  WH_JOURNALPLAYBACK = 1;
  {$EXTERNALSYM WH_JOURNALPLAYBACK}
  WH_KEYBOARD        = 2;
  {$EXTERNALSYM WH_KEYBOARD}
  WH_GETMESSAGE      = 3;
  {$EXTERNALSYM WH_GETMESSAGE}
  WH_CALLWNDPROC     = 4;
  {$EXTERNALSYM WH_CALLWNDPROC}
  WH_CBT             = 5;
  {$EXTERNALSYM WH_CBT}
  WH_SYSMSGFILTER    = 6;
  {$EXTERNALSYM WH_SYSMSGFILTER}
  WH_MOUSE           = 7;
  {$EXTERNALSYM WH_MOUSE}
  WH_HARDWARE        = 8;
  {$EXTERNALSYM WH_HARDWARE}
  WH_DEBUG           = 9;
  {$EXTERNALSYM WH_DEBUG}
  WH_SHELL           = 10;
  {$EXTERNALSYM WH_SHELL}
  WH_FOREGROUNDIDLE  = 11;
  {$EXTERNALSYM WH_FOREGROUNDIDLE}
  WH_CALLWNDPROCRET  = 12;
  {$EXTERNALSYM WH_CALLWNDPROCRET}

  {$IFDEF WINNT4_UP}
  WH_KEYBOARD_LL = 13;
  {$EXTERNALSYM WH_KEYBOARD_LL}
  WH_MOUSE_LL    = 14;
  {$EXTERNALSYM WH_MOUSE_LL}
  {$ENDIF WINNT4_UP}

  {$IFDEF WINNT4_UP}
  WH_MAX = 14;
  {$EXTERNALSYM WH_MAX}
  {$ELSE}
  WH_MAX = 12;
  {$EXTERNALSYM WH_MAX}
  {$ENDIF WINNT4_UP}

  WH_MINHOOK = WH_MIN;
  {$EXTERNALSYM WH_MINHOOK}
  WH_MAXHOOK = WH_MAX;
  {$EXTERNALSYM WH_MAXHOOK}

//
// Hook Codes
//

  HC_ACTION      = 0;
  {$EXTERNALSYM HC_ACTION}
  HC_GETNEXT     = 1;
  {$EXTERNALSYM HC_GETNEXT}
  HC_SKIP        = 2;
  {$EXTERNALSYM HC_SKIP}
  HC_NOREMOVE    = 3;
  {$EXTERNALSYM HC_NOREMOVE}
  HC_NOREM       = HC_NOREMOVE;
  {$EXTERNALSYM HC_NOREM}
  HC_SYSMODALON  = 4;
  {$EXTERNALSYM HC_SYSMODALON}
  HC_SYSMODALOFF = 5;
  {$EXTERNALSYM HC_SYSMODALOFF}

//
// CBT Hook Codes
//

  HCBT_MOVESIZE     = 0;
  {$EXTERNALSYM HCBT_MOVESIZE}
  HCBT_MINMAX       = 1;
  {$EXTERNALSYM HCBT_MINMAX}
  HCBT_QS           = 2;
  {$EXTERNALSYM HCBT_QS}
  HCBT_CREATEWND    = 3;
  {$EXTERNALSYM HCBT_CREATEWND}
  HCBT_DESTROYWND   = 4;
  {$EXTERNALSYM HCBT_DESTROYWND}
  HCBT_ACTIVATE     = 5;
  {$EXTERNALSYM HCBT_ACTIVATE}
  HCBT_CLICKSKIPPED = 6;
  {$EXTERNALSYM HCBT_CLICKSKIPPED}
  HCBT_KEYSKIPPED   = 7;
  {$EXTERNALSYM HCBT_KEYSKIPPED}
  HCBT_SYSCOMMAND   = 8;
  {$EXTERNALSYM HCBT_SYSCOMMAND}
  HCBT_SETFOCUS     = 9;
  {$EXTERNALSYM HCBT_SETFOCUS}

//
// HCBT_ACTIVATE structure pointed to by lParam
//

type
  LPCBTACTIVATESTRUCT = ^CBTACTIVATESTRUCT;
  {$EXTERNALSYM LPCBTACTIVATESTRUCT}
  tagCBTACTIVATESTRUCT = record
    fMouse: BOOL;
    hWndActive: HWND;
  end;
  {$EXTERNALSYM tagCBTACTIVATESTRUCT}
  CBTACTIVATESTRUCT = tagCBTACTIVATESTRUCT;
  {$EXTERNALSYM CBTACTIVATESTRUCT}
  TCbtActivateStruct = CBTACTIVATESTRUCT;
  PCbtActivateStruct = LPCBTACTIVATESTRUCT;

{$IFDEF WINXP_UP}

//
// WTSSESSION_NOTIFICATION struct pointed by lParam, for WM_WTSSESSION_CHANGE
//

  tagWTSSESSION_NOTIFICATION = record
    cbSize: DWORD;
    dwSessionId: DWORD;
  end;
  {$EXTERNALSYM tagWTSSESSION_NOTIFICATION}
  WTSSESSION_NOTIFICATION = tagWTSSESSION_NOTIFICATION;
  {$EXTERNALSYM WTSSESSION_NOTIFICATION}
  PWTSSESSION_NOTIFICATION = ^WTSSESSION_NOTIFICATION;
  {$EXTERNALSYM PWTSSESSION_NOTIFICATION}
  TWtsSessionNotification = WTSSESSION_NOTIFICATION;
  PWtsSessionNotification = PWTSSESSION_NOTIFICATION;

//
// codes passed in WPARAM for WM_WTSSESSION_CHANGE
//

const
  WTS_CONSOLE_CONNECT     = $1;
  {$EXTERNALSYM WTS_CONSOLE_CONNECT}
  WTS_CONSOLE_DISCONNECT  = $2;
  {$EXTERNALSYM WTS_CONSOLE_DISCONNECT}
  WTS_REMOTE_CONNECT      = $3;
  {$EXTERNALSYM WTS_REMOTE_CONNECT}
  WTS_REMOTE_DISCONNECT   = $4;
  {$EXTERNALSYM WTS_REMOTE_DISCONNECT}
  WTS_SESSION_LOGON       = $5;
  {$EXTERNALSYM WTS_SESSION_LOGON}
  WTS_SESSION_LOGOFF      = $6;
  {$EXTERNALSYM WTS_SESSION_LOGOFF}
  WTS_SESSION_LOCK        = $7;
  {$EXTERNALSYM WTS_SESSION_LOCK}
  WTS_SESSION_UNLOCK      = $8;
  {$EXTERNALSYM WTS_SESSION_UNLOCK}
  WTS_SESSION_REMOTE_CONTROL = $9;
  {$EXTERNALSYM WTS_SESSION_REMOTE_CONTROL}

{$ENDIF WINXP_UP}

//
// WH_MSGFILTER Filter Proc Codes
//

const
  MSGF_DIALOGBOX  = 0;
  {$EXTERNALSYM MSGF_DIALOGBOX}
  MSGF_MESSAGEBOX = 1;
  {$EXTERNALSYM MSGF_MESSAGEBOX}
  MSGF_MENU       = 2;
  {$EXTERNALSYM MSGF_MENU}
  MSGF_SCROLLBAR  = 5;
  {$EXTERNALSYM MSGF_SCROLLBAR}
  MSGF_NEXTWINDOW = 6;
  {$EXTERNALSYM MSGF_NEXTWINDOW}
  MSGF_MAX        = 8; // unused
  {$EXTERNALSYM MSGF_MAX}
  MSGF_USER       = 4096;
  {$EXTERNALSYM MSGF_USER}

//
// Shell support
//

  HSHELL_WINDOWCREATED       = 1;
  {$EXTERNALSYM HSHELL_WINDOWCREATED}
  HSHELL_WINDOWDESTROYED     = 2;
  {$EXTERNALSYM HSHELL_WINDOWDESTROYED}
  HSHELL_ACTIVATESHELLWINDOW = 3;
  {$EXTERNALSYM HSHELL_ACTIVATESHELLWINDOW}

  HSHELL_WINDOWACTIVATED = 4;
  {$EXTERNALSYM HSHELL_WINDOWACTIVATED}
  HSHELL_GETMINRECT      = 5;
  {$EXTERNALSYM HSHELL_GETMINRECT}
  HSHELL_REDRAW          = 6;
  {$EXTERNALSYM HSHELL_REDRAW}
  HSHELL_TASKMAN         = 7;
  {$EXTERNALSYM HSHELL_TASKMAN}
  HSHELL_LANGUAGE        = 8;
  {$EXTERNALSYM HSHELL_LANGUAGE}
  HSHELL_SYSMENU            = 9;
  {$EXTERNALSYM HSHELL_SYSMENU}
  HSHELL_ENDTASK            = 10;
  {$EXTERNALSYM HSHELL_ENDTASK}
  {$IFDEF WIN2000_UP}
  HSHELL_ACCESSIBILITYSTATE = 11;
  {$EXTERNALSYM HSHELL_ACCESSIBILITYSTATE}
  HSHELL_APPCOMMAND      = 12;
  {$EXTERNALSYM HSHELL_APPCOMMAND}
  {$ENDIF WIN2000_UP}

  {$IFDEF WINXP_UP}
  HSHELL_WINDOWREPLACED  = 13;
  {$EXTERNALSYM HSHELL_WINDOWREPLACED}
  {$ENDIF WINXP_UP}
  HSHELL_WINDOWREPLACING = 14;
  {$EXTERNALSYM HSHELL_WINDOWREPLACING}

  HSHELL_HIGHBIT          = $8000;
  {$EXTERNALSYM HSHELL_HIGHBIT}
  HSHELL_FLASH            = HSHELL_REDRAW or HSHELL_HIGHBIT;
  {$EXTERNALSYM HSHELL_FLASH}
  HSHELL_RUDEAPPACTIVATED = HSHELL_WINDOWACTIVATED or HSHELL_HIGHBIT;
  {$EXTERNALSYM HSHELL_RUDEAPPACTIVATED}

{$IFDEF WIN2000_UP}

// wparam for HSHELL_ACCESSIBILITYSTATE//

  ACCESS_STICKYKEYS = $0001;
  {$EXTERNALSYM ACCESS_STICKYKEYS}
  ACCESS_FILTERKEYS = $0002;
  {$EXTERNALSYM ACCESS_FILTERKEYS}
  ACCESS_MOUSEKEYS  = $0003;
  {$EXTERNALSYM ACCESS_MOUSEKEYS}

// cmd for HSHELL_APPCOMMAND and WM_APPCOMMAND//

  APPCOMMAND_BROWSER_BACKWARD    = 1;
  {$EXTERNALSYM APPCOMMAND_BROWSER_BACKWARD}
  APPCOMMAND_BROWSER_FORWARD     = 2;
  {$EXTERNALSYM APPCOMMAND_BROWSER_FORWARD}
  APPCOMMAND_BROWSER_REFRESH     = 3;
  {$EXTERNALSYM APPCOMMAND_BROWSER_REFRESH}
  APPCOMMAND_BROWSER_STOP        = 4;
  {$EXTERNALSYM APPCOMMAND_BROWSER_STOP}
  APPCOMMAND_BROWSER_SEARCH      = 5;
  {$EXTERNALSYM APPCOMMAND_BROWSER_SEARCH}
  APPCOMMAND_BROWSER_FAVORITES   = 6;
  {$EXTERNALSYM APPCOMMAND_BROWSER_FAVORITES}
  APPCOMMAND_BROWSER_HOME        = 7;
  {$EXTERNALSYM APPCOMMAND_BROWSER_HOME}
  APPCOMMAND_VOLUME_MUTE         = 8;
  {$EXTERNALSYM APPCOMMAND_VOLUME_MUTE}
  APPCOMMAND_VOLUME_DOWN         = 9;
  {$EXTERNALSYM APPCOMMAND_VOLUME_DOWN}
  APPCOMMAND_VOLUME_UP           = 10;
  {$EXTERNALSYM APPCOMMAND_VOLUME_UP}
  APPCOMMAND_MEDIA_NEXTTRACK     = 11;
  {$EXTERNALSYM APPCOMMAND_MEDIA_NEXTTRACK}
  APPCOMMAND_MEDIA_PREVIOUSTRACK = 12;
  {$EXTERNALSYM APPCOMMAND_MEDIA_PREVIOUSTRACK}
  APPCOMMAND_MEDIA_STOP          = 13;
  {$EXTERNALSYM APPCOMMAND_MEDIA_STOP}
  APPCOMMAND_MEDIA_PLAY_PAUSE    = 14;
  {$EXTERNALSYM APPCOMMAND_MEDIA_PLAY_PAUSE}
  APPCOMMAND_LAUNCH_MAIL         = 15;
  {$EXTERNALSYM APPCOMMAND_LAUNCH_MAIL}
  APPCOMMAND_LAUNCH_MEDIA_SELECT = 16;
  {$EXTERNALSYM APPCOMMAND_LAUNCH_MEDIA_SELECT}
  APPCOMMAND_LAUNCH_APP1         = 17;
  {$EXTERNALSYM APPCOMMAND_LAUNCH_APP1}
  APPCOMMAND_LAUNCH_APP2         = 18;
  {$EXTERNALSYM APPCOMMAND_LAUNCH_APP2}
  APPCOMMAND_BASS_DOWN           = 19;
  {$EXTERNALSYM APPCOMMAND_BASS_DOWN}
  APPCOMMAND_BASS_BOOST          = 20;
  {$EXTERNALSYM APPCOMMAND_BASS_BOOST}
  APPCOMMAND_BASS_UP             = 21;
  {$EXTERNALSYM APPCOMMAND_BASS_UP}
  APPCOMMAND_TREBLE_DOWN         = 22;
  {$EXTERNALSYM APPCOMMAND_TREBLE_DOWN}
  APPCOMMAND_TREBLE_UP           = 23;
  {$EXTERNALSYM APPCOMMAND_TREBLE_UP}
  {$IFDEF WINXP_UP}
  APPCOMMAND_MICROPHONE_VOLUME_MUTE = 24;
  {$EXTERNALSYM APPCOMMAND_MICROPHONE_VOLUME_MUTE}
  APPCOMMAND_MICROPHONE_VOLUME_DOWN = 25;
  {$EXTERNALSYM APPCOMMAND_MICROPHONE_VOLUME_DOWN}
  APPCOMMAND_MICROPHONE_VOLUME_UP   = 26;
  {$EXTERNALSYM APPCOMMAND_MICROPHONE_VOLUME_UP}
  APPCOMMAND_HELP                   = 27;
  {$EXTERNALSYM APPCOMMAND_HELP}
  APPCOMMAND_FIND                   = 28;
  {$EXTERNALSYM APPCOMMAND_FIND}
  APPCOMMAND_NEW                    = 29;
  {$EXTERNALSYM APPCOMMAND_NEW}
  APPCOMMAND_OPEN                   = 30;
  {$EXTERNALSYM APPCOMMAND_OPEN}
  APPCOMMAND_CLOSE                  = 31;
  {$EXTERNALSYM APPCOMMAND_CLOSE}
  APPCOMMAND_SAVE                   = 32;
  {$EXTERNALSYM APPCOMMAND_SAVE}
  APPCOMMAND_PRINT                  = 33;
  {$EXTERNALSYM APPCOMMAND_PRINT}
  APPCOMMAND_UNDO                   = 34;
  {$EXTERNALSYM APPCOMMAND_UNDO}
  APPCOMMAND_REDO                   = 35;
  {$EXTERNALSYM APPCOMMAND_REDO}
  APPCOMMAND_COPY                   = 36;
  {$EXTERNALSYM APPCOMMAND_COPY}
  APPCOMMAND_CUT                    = 37;
  {$EXTERNALSYM APPCOMMAND_CUT}
  APPCOMMAND_PASTE                  = 38;
  {$EXTERNALSYM APPCOMMAND_PASTE}
  APPCOMMAND_REPLY_TO_MAIL          = 39;
  {$EXTERNALSYM APPCOMMAND_REPLY_TO_MAIL}
  APPCOMMAND_FORWARD_MAIL           = 40;
  {$EXTERNALSYM APPCOMMAND_FORWARD_MAIL}
  APPCOMMAND_SEND_MAIL              = 41;
  {$EXTERNALSYM APPCOMMAND_SEND_MAIL}
  APPCOMMAND_SPELL_CHECK            = 42;
  {$EXTERNALSYM APPCOMMAND_SPELL_CHECK}
  APPCOMMAND_DICTATE_OR_COMMAND_CONTROL_TOGGLE = 43;
  {$EXTERNALSYM APPCOMMAND_DICTATE_OR_COMMAND_CONTROL_TOGGLE}
  APPCOMMAND_MIC_ON_OFF_TOGGLE      = 44;
  {$EXTERNALSYM APPCOMMAND_MIC_ON_OFF_TOGGLE}
  APPCOMMAND_CORRECTION_LIST        = 45;
  {$EXTERNALSYM APPCOMMAND_CORRECTION_LIST}
  {$ENDIF WINXP_UP}
  APPCOMMAND_MEDIA_PLAY             = 46;
  {$EXTERNALSYM APPCOMMAND_MEDIA_PLAY}
  APPCOMMAND_MEDIA_PAUSE            = 47;
  {$EXTERNALSYM APPCOMMAND_MEDIA_PAUSE}
  APPCOMMAND_MEDIA_RECORD           = 48;
  {$EXTERNALSYM APPCOMMAND_MEDIA_RECORD}
  APPCOMMAND_MEDIA_FAST_FORWARD     = 49;
  {$EXTERNALSYM APPCOMMAND_MEDIA_FAST_FORWARD}
  APPCOMMAND_MEDIA_REWIND           = 50;
  {$EXTERNALSYM APPCOMMAND_MEDIA_REWIND}
  APPCOMMAND_MEDIA_CHANNEL_UP       = 51;
  {$EXTERNALSYM APPCOMMAND_MEDIA_CHANNEL_UP}
  APPCOMMAND_MEDIA_CHANNEL_DOWN     = 52;
  {$EXTERNALSYM APPCOMMAND_MEDIA_CHANNEL_DOWN}

  FAPPCOMMAND_MOUSE = $8000;
  {$EXTERNALSYM FAPPCOMMAND_MOUSE}
  FAPPCOMMAND_KEY   = 0;
  {$EXTERNALSYM FAPPCOMMAND_KEY}
  FAPPCOMMAND_OEM   = $1000;
  {$EXTERNALSYM FAPPCOMMAND_OEM}
  FAPPCOMMAND_MASK  = $F000;
  {$EXTERNALSYM FAPPCOMMAND_MASK}

function GET_APPCOMMAND_LPARAM(lParam: LPARAM): WORD;
{$EXTERNALSYM GET_APPCOMMAND_LPARAM}

function GET_DEVICE_LPARAM(lParam: LPARAM): WORD;
{$EXTERNALSYM GET_DEVICE_LPARAM}

function GET_MOUSEORKEY_LPARAM(lParam: LPARAM): WORD;
{$EXTERNALSYM GET_MOUSEORKEY_LPARAM}

function GET_FLAGS_LPARAM(lParam: LPARAM): Integer;
{$EXTERNALSYM GET_FLAGS_LPARAM}

function GET_KEYSTATE_LPARAM(lParam: LPARAM): Integer;
{$EXTERNALSYM GET_KEYSTATE_LPARAM}

{$ENDIF WIN2000_UP}

type
  SHELLHOOKINFO = record
    hwnd: HWND;
    rc: RECT;
  end;
  {$EXTERNALSYM SHELLHOOKINFO}
  LPSHELLHOOKINFO = ^SHELLHOOKINFO;
  {$EXTERNALSYM LPSHELLHOOKINFO}
  TShellHookInfo = SHELLHOOKINFO;
  PShellHookInfo = LPSHELLHOOKINFO;

//
// Message Structure used in Journaling
//

type
  LPEVENTMSG = ^EVENTMSG;
  {$EXTERNALSYM LPEVENTMSG}
  tagEVENTMSG = record
    message_: UINT;
    paramL: UINT;
    paramH: UINT;
    time: DWORD;
    hwnd: HWND;
  end;
  {$EXTERNALSYM tagEVENTMSG}
  EVENTMSG = tagEVENTMSG;
  {$EXTERNALSYM EVENTMSG}
  LPEVENTMSGMSG = ^EVENTMSG;
  {$EXTERNALSYM LPEVENTMSGMSG}
  PEVENTMSGMSG = ^EVENTMSG;
  {$EXTERNALSYM PEVENTMSGMSG}
  NPEVENTMSG = ^EVENTMSG;
  {$EXTERNALSYM NPEVENTMSG}
  NPEVENTMSGMSG = ^EVENTMSG;
  {$EXTERNALSYM NPEVENTMSGMSG}
  TEventMsg = EVENTMSG;
  PEventMsg = LPEVENTMSG;

//
// Message structure used by WH_CALLWNDPROC
//

  LPCWPSTRUCT = ^CWPSTRUCT;
  {$EXTERNALSYM LPCWPSTRUCT}
  tagCWPSTRUCT = record
    lParam: LPARAM;
    wParam: WPARAM;
    message: UINT;
    hwnd: HWND;
  end;
  {$EXTERNALSYM tagCWPSTRUCT}
  CWPSTRUCT = tagCWPSTRUCT;
  {$EXTERNALSYM CWPSTRUCT}
  NPCWPSTRUCT = ^CWPSTRUCT;
  {$EXTERNALSYM NPCWPSTRUCT}
  TCwpStruct = CWPSTRUCT;
  PCwpStruct = LPCWPSTRUCT;

//
// Message structure used by WH_CALLWNDPROCRET
//

  LPCWPRETSTRUCT = ^CWPRETSTRUCT;
  {$EXTERNALSYM LPCWPRETSTRUCT}
  tagCWPRETSTRUCT = record
    lResult: LRESULT;
    lParam: LPARAM;
    wParam: WPARAM;
    message: UINT;
    hwnd: HWND;
  end;
  {$EXTERNALSYM tagCWPRETSTRUCT}
  CWPRETSTRUCT = tagCWPRETSTRUCT;
  {$EXTERNALSYM CWPRETSTRUCT}
  NPCWPRETSTRUCT = ^CWPRETSTRUCT;
  {$EXTERNALSYM NPCWPRETSTRUCT}
  TCwpRetStruct = CWPRETSTRUCT;
  PCwpRetStruct = LPCWPRETSTRUCT;

//
// Low level hook flags
//

const
  LLKHF_EXTENDED = KF_EXTENDED shr 8;
  {$EXTERNALSYM LLKHF_EXTENDED}
  LLKHF_INJECTED = $00000010;
  {$EXTERNALSYM LLKHF_INJECTED}
  LLKHF_ALTDOWN  = KF_ALTDOWN shr 8;
  {$EXTERNALSYM LLKHF_ALTDOWN}
  LLKHF_UP       = KF_UP shr 8;
  {$EXTERNALSYM LLKHF_UP}

  LLMHF_INJECTED = $00000001;
  {$EXTERNALSYM LLMHF_INJECTED}

//
// Structure used by WH_KEYBOARD_LL
//

type
  LPKBDLLHOOKSTRUCT = ^KBDLLHOOKSTRUCT;
  {$EXTERNALSYM LPKBDLLHOOKSTRUCT}
  tagKBDLLHOOKSTRUCT = record
    vkCode: DWORD;
    scanCode: DWORD;
    flags: DWORD;
    time: DWORD;
    dwExtraInfo: ULONG_PTR;
  end;
  {$EXTERNALSYM tagKBDLLHOOKSTRUCT}
  KBDLLHOOKSTRUCT = tagKBDLLHOOKSTRUCT;
  {$EXTERNALSYM KBDLLHOOKSTRUCT}
  TKbDllHookStruct = KBDLLHOOKSTRUCT;
  PKbDllHookStruct = LPKBDLLHOOKSTRUCT;

//
// Structure used by WH_MOUSE_LL
//

  LPMSLLHOOKSTRUCT = ^MSLLHOOKSTRUCT;
  {$EXTERNALSYM LPMSLLHOOKSTRUCT}
  tagMSLLHOOKSTRUCT = record
    pt: POINT;
    mouseData: DWORD;
    flags: DWORD;
    time: DWORD;
    dwExtraInfo: ULONG_PTR;
  end;
  {$EXTERNALSYM tagMSLLHOOKSTRUCT}
  MSLLHOOKSTRUCT = tagMSLLHOOKSTRUCT;
  {$EXTERNALSYM MSLLHOOKSTRUCT}
  TMsllHookStruct = MSLLHOOKSTRUCT;
  PMsllHookStruct = LPMSLLHOOKSTRUCT;

//
// Structure used by WH_DEBUG
//

  LPDEBUGHOOKINFO = ^DEBUGHOOKINFO;
  {$EXTERNALSYM LPDEBUGHOOKINFO}
  tagDEBUGHOOKINFO = record
    idThread: DWORD;
    idThreadInstaller: DWORD;
    lParam: LPARAM;
    wParam: WPARAM;
    code: Integer;
  end;
  {$EXTERNALSYM tagDEBUGHOOKINFO}
  DEBUGHOOKINFO = tagDEBUGHOOKINFO;
  {$EXTERNALSYM DEBUGHOOKINFO}
  NPDEBUGHOOKINFO = ^DEBUGHOOKINFO;
  {$EXTERNALSYM NPDEBUGHOOKINFO}
  TDebugHookInfo = DEBUGHOOKINFO;
  PDebugHookInfo = LPDEBUGHOOKINFO;

//
// Structure used by WH_MOUSE
//

  LPMOUSEHOOKSTRUCT = ^MOUSEHOOKSTRUCT;
  {$EXTERNALSYM LPMOUSEHOOKSTRUCT}
  tagMOUSEHOOKSTRUCT = record
    pt: POINT;
    hwnd: HWND;
    wHitTestCode: UINT;
    dwExtraInfo: ULONG_PTR;
  end;
  {$EXTERNALSYM tagMOUSEHOOKSTRUCT}
  MOUSEHOOKSTRUCT = tagMOUSEHOOKSTRUCT;
  {$EXTERNALSYM MOUSEHOOKSTRUCT}
  TMouseHookStruct = MOUSEHOOKSTRUCT;
  PMouseHookStruct = LPMOUSEHOOKSTRUCT;

  LPMOUSEHOOKSTRUCTEX = ^MOUSEHOOKSTRUCTEX;
  {$EXTERNALSYM LPMOUSEHOOKSTRUCTEX}
  tagMOUSEHOOKSTRUCTEX = record
    mhs: MOUSEHOOKSTRUCT;
    mouseData: DWORD;
  end;
  {$EXTERNALSYM tagMOUSEHOOKSTRUCTEX}
  MOUSEHOOKSTRUCTEX = tagMOUSEHOOKSTRUCTEX;
  {$EXTERNALSYM MOUSEHOOKSTRUCTEX}
  TMouseHookStructEx = MOUSEHOOKSTRUCTEX;
  PMouseHookStructEx = LPMOUSEHOOKSTRUCTEX;

//
// Structure used by WH_HARDWARE
//

  LPHARDWAREHOOKSTRUCT = ^HARDWAREHOOKSTRUCT;
  {$EXTERNALSYM LPHARDWAREHOOKSTRUCT}
  tagHARDWAREHOOKSTRUCT = record
    hwnd: HWND;
    message: UINT;
    wParam: WPARAM;
    lParam: LPARAM;
  end;
  {$EXTERNALSYM tagHARDWAREHOOKSTRUCT}
  HARDWAREHOOKSTRUCT = tagHARDWAREHOOKSTRUCT;
  {$EXTERNALSYM HARDWAREHOOKSTRUCT}
  THardwareHookStruct = HARDWAREHOOKSTRUCT;
  PHardwareHookStruct = LPHARDWAREHOOKSTRUCT;

//
// Keyboard Layout API
//

const
  HKL_PREV = 0;
  {$EXTERNALSYM HKL_PREV}
  HKL_NEXT = 1;
  {$EXTERNALSYM HKL_NEXT}

  KLF_ACTIVATE      = $00000001;
  {$EXTERNALSYM KLF_ACTIVATE}
  KLF_SUBSTITUTE_OK = $00000002;
  {$EXTERNALSYM KLF_SUBSTITUTE_OK}
  KLF_REORDER       = $00000008;
  {$EXTERNALSYM KLF_REORDER}
  KLF_REPLACELANG   = $00000010;
  {$EXTERNALSYM KLF_REPLACELANG}
  KLF_NOTELLSHELL   = $00000080;
  {$EXTERNALSYM KLF_NOTELLSHELL}
  KLF_SETFORPROCESS = $00000100;
  {$EXTERNALSYM KLF_SETFORPROCESS}
  KLF_SHIFTLOCK     = $00010000;
  {$EXTERNALSYM KLF_SHIFTLOCK}
  KLF_RESET         = $40000000;
  {$EXTERNALSYM KLF_RESET}

//
// Bits in wParam of WM_INPUTLANGCHANGEREQUEST message
//

  INPUTLANGCHANGE_SYSCHARSET = $0001;
  {$EXTERNALSYM INPUTLANGCHANGE_SYSCHARSET}
  INPUTLANGCHANGE_FORWARD    = $0002;
  {$EXTERNALSYM INPUTLANGCHANGE_FORWARD}
  INPUTLANGCHANGE_BACKWARD   = $0004;
  {$EXTERNALSYM INPUTLANGCHANGE_BACKWARD}

//
// Size of KeyboardLayoutName (number of characters), including nul terminator
//

  KL_NAMELENGTH = 9;
  {$EXTERNALSYM KL_NAMELENGTH}

function LoadKeyboardLayoutA(pwszKLID: LPCSTR; Flags: UINT): HKL; stdcall;
{$EXTERNALSYM LoadKeyboardLayoutA}
function LoadKeyboardLayoutW(pwszKLID: LPCWSTR; Flags: UINT): HKL; stdcall;
{$EXTERNALSYM LoadKeyboardLayoutW}
function LoadKeyboardLayout(pwszKLID: LPCTSTR; Flags: UINT): HKL; stdcall;
{$EXTERNALSYM LoadKeyboardLayout}

function ActivateKeyboardLayout(hkl: HKL; Flags: UINT): HKL; stdcall;
{$EXTERNALSYM ActivateKeyboardLayout}

function ToUnicodeEx(wVirtKey, wScanCode: UINT; lpKeyState: PBYTE;
  pwszBuff: LPWSTR; cchBuff: Integer; wFlags: UINT; dwhkl: HKL): Integer; stdcall;
{$EXTERNALSYM ToUnicodeEx}

function UnloadKeyboardLayout(hkl: HKL): BOOL; stdcall;
{$EXTERNALSYM UnloadKeyboardLayout}

function GetKeyboardLayoutNameA(pwszKLID: LPSTR): BOOL; stdcall;
{$EXTERNALSYM GetKeyboardLayoutNameA}
function GetKeyboardLayoutNameW(pwszKLID: LPWSTR): BOOL; stdcall;
{$EXTERNALSYM GetKeyboardLayoutNameW}
function GetKeyboardLayoutName(pwszKLID: LPTSTR): BOOL; stdcall;
{$EXTERNALSYM GetKeyboardLayoutName}

function GetKeyboardLayoutList(nBuff: Integer; lpList: PHKL): Integer; stdcall;
{$EXTERNALSYM GetKeyboardLayoutList}

function GetKeyboardLayout(idThread: DWORD): HKL; stdcall;
{$EXTERNALSYM GetKeyboardLayout}

type
  LPMOUSEMOVEPOINT = ^MOUSEMOVEPOINT;
  {$EXTERNALSYM LPMOUSEMOVEPOINT}
  tagMOUSEMOVEPOINT = record
    x: Integer;
    y: Integer;
    time: DWORD;
    dwExtraInfo: ULONG_PTR;
  end;
  {$EXTERNALSYM tagMOUSEMOVEPOINT}
  MOUSEMOVEPOINT = tagMOUSEMOVEPOINT;
  {$EXTERNALSYM MOUSEMOVEPOINT}
  TMouseMovePoint = MOUSEMOVEPOINT;
  PMouseMovePoint = LPMOUSEMOVEPOINT;

//
// Values for resolution parameter of GetMouseMovePointsEx
//

const
  GMMP_USE_DISPLAY_POINTS         = 1;
  {$EXTERNALSYM GMMP_USE_DISPLAY_POINTS}
  GMMP_USE_HIGH_RESOLUTION_POINTS = 2;
  {$EXTERNALSYM GMMP_USE_HIGH_RESOLUTION_POINTS}

function GetMouseMovePointsEx(cbSize: UINT; lppt, lpptBuf: LPMOUSEMOVEPOINT;
  nBufPoints: Integer; resolution: DWORD): Integer; stdcall;
{$EXTERNALSYM GetMouseMovePointsEx}

//
// Desktop-specific access flags
//

const
  DESKTOP_READOBJECTS     = $0001;
  {$EXTERNALSYM DESKTOP_READOBJECTS}
  DESKTOP_CREATEWINDOW    = $0002;
  {$EXTERNALSYM DESKTOP_CREATEWINDOW}
  DESKTOP_CREATEMENU      = $0004;
  {$EXTERNALSYM DESKTOP_CREATEMENU}
  DESKTOP_HOOKCONTROL     = $0008;
  {$EXTERNALSYM DESKTOP_HOOKCONTROL}
  DESKTOP_JOURNALRECORD   = $0010;
  {$EXTERNALSYM DESKTOP_JOURNALRECORD}
  DESKTOP_JOURNALPLAYBACK = $0020;
  {$EXTERNALSYM DESKTOP_JOURNALPLAYBACK}
  DESKTOP_ENUMERATE       = $0040;
  {$EXTERNALSYM DESKTOP_ENUMERATE}
  DESKTOP_WRITEOBJECTS    = $0080;
  {$EXTERNALSYM DESKTOP_WRITEOBJECTS}
  DESKTOP_SWITCHDESKTOP   = $0100;
  {$EXTERNALSYM DESKTOP_SWITCHDESKTOP}

//
// Desktop-specific control flags
//

  DF_ALLOWOTHERACCOUNTHOOK = $0001;
  {$EXTERNALSYM DF_ALLOWOTHERACCOUNTHOOK}

function CreateDesktopA(lpszDesktop, lpszDevice: LPCSTR; pDevmode: LPDEVMODEA;
  dwFlags: DWORD; dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HDESK; stdcall;
{$EXTERNALSYM CreateDesktopA}
function CreateDesktopW(lpszDesktop, lpszDevice: LPCWSTR; pDevmode: LPDEVMODEW;
  dwFlags: DWORD; dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HDESK; stdcall;
{$EXTERNALSYM CreateDesktopW}
function CreateDesktop(lpszDesktop, lpszDevice: LPCTSTR; pDevmode: LPDEVMODE;
  dwFlags: DWORD; dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HDESK; stdcall;
{$EXTERNALSYM CreateDesktop}

function OpenDesktopA(lpszDesktop: LPCSTR; dwFlags: DWORD; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HDESK; stdcall;
{$EXTERNALSYM OpenDesktopA}
function OpenDesktopW(lpszDesktop: LPCWSTR; dwFlags: DWORD; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HDESK; stdcall;
{$EXTERNALSYM OpenDesktopW}
function OpenDesktop(lpszDesktop: LPCTSTR; dwFlags: DWORD; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HDESK; stdcall;
{$EXTERNALSYM OpenDesktop}

function OpenInputDesktop(dwFlags: DWORD; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HDESK; stdcall;
{$EXTERNALSYM OpenInputDesktop}

function EnumDesktopsA(hwinsta: HWINSTA; lpEnumFunc: DESKTOPENUMPROCA;
  lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumDesktopsA}
function EnumDesktopsW(hwinsta: HWINSTA; lpEnumFunc: DESKTOPENUMPROCW;
  lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumDesktopsW}
function EnumDesktops(hwinsta: HWINSTA; lpEnumFunc: DESKTOPENUMPROC;
  lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumDesktops}

function EnumDesktopWindows(hDesktop: HDESK; lpfn: WNDENUMPROC; lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumDesktopWindows}

function SwitchDesktop(hDesktop: HDESK): BOOL; stdcall;
{$EXTERNALSYM SwitchDesktop}

function SetThreadDesktop(hDesktop: HDESK): BOOL; stdcall;
{$EXTERNALSYM SetThreadDesktop}

function CloseDesktop(hDesktop: HDESK): BOOL; stdcall;
{$EXTERNALSYM CloseDesktop}

function GetThreadDesktop(dwThreadId: DWORD): HDESK; stdcall;
{$EXTERNALSYM GetThreadDesktop}

//
// Windowstation-specific access flags
//

const
  WINSTA_ENUMDESKTOPS      = $0001;
  {$EXTERNALSYM WINSTA_ENUMDESKTOPS}
  WINSTA_READATTRIBUTES    = $0002;
  {$EXTERNALSYM WINSTA_READATTRIBUTES}
  WINSTA_ACCESSCLIPBOARD   = $0004;
  {$EXTERNALSYM WINSTA_ACCESSCLIPBOARD}
  WINSTA_CREATEDESKTOP     = $0008;
  {$EXTERNALSYM WINSTA_CREATEDESKTOP}
  WINSTA_WRITEATTRIBUTES   = $0010;
  {$EXTERNALSYM WINSTA_WRITEATTRIBUTES}
  WINSTA_ACCESSGLOBALATOMS = $0020;
  {$EXTERNALSYM WINSTA_ACCESSGLOBALATOMS}
  WINSTA_EXITWINDOWS       = $0040;
  {$EXTERNALSYM WINSTA_EXITWINDOWS}
  WINSTA_ENUMERATE         = $0100;
  {$EXTERNALSYM WINSTA_ENUMERATE}
  WINSTA_READSCREEN        = $0200;
  {$EXTERNALSYM WINSTA_READSCREEN}

  WINSTA_ALL_ACCESS        = (WINSTA_ENUMDESKTOPS or WINSTA_READATTRIBUTES or WINSTA_ACCESSCLIPBOARD or
                              WINSTA_CREATEDESKTOP or WINSTA_WRITEATTRIBUTES or WINSTA_ACCESSGLOBALATOMS or
                              WINSTA_EXITWINDOWS or WINSTA_ENUMERATE or WINSTA_READSCREEN);
  {$EXTERNALSYM WINSTA_ALL_ACCESS}

//
// Windowstation creation flags.
//

  CWF_CREATE_ONLY          = $0001;
  {$EXTERNALSYM CWF_CREATE_ONLY}

//
// Windowstation-specific attribute flags
//

  WSF_VISIBLE = $0001;
  {$EXTERNALSYM WSF_VISIBLE}

function CreateWindowStationA(lpwinsta: LPCSTR; dwFlags: DWORD;
  dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HWINSTA; stdcall;
{$EXTERNALSYM CreateWindowStationA}
function CreateWindowStationW(lpwinsta: LPCWSTR; dwFlags: DWORD;
  dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HWINSTA; stdcall;
{$EXTERNALSYM CreateWindowStationW}
function CreateWindowStation(lpwinsta: LPCTSTR; dwFlags: DWORD;
  dwDesiredAccess: ACCESS_MASK; lpsa: LPSECURITY_ATTRIBUTES): HWINSTA; stdcall;
{$EXTERNALSYM CreateWindowStation}

function OpenWindowStationA(lpszWinSta: LPCSTR; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HWINSTA; stdcall;
{$EXTERNALSYM OpenWindowStationA}
function OpenWindowStationW(lpszWinSta: LPCWSTR; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HWINSTA; stdcall;
{$EXTERNALSYM OpenWindowStationW}
function OpenWindowStation(lpszWinSta: LPCTSTR; fInherit: BOOL;
  dwDesiredAccess: ACCESS_MASK): HWINSTA; stdcall;
{$EXTERNALSYM OpenWindowStation}

function EnumWindowStationsA(lpEnumFunc: WINSTAENUMPROCA; lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumWindowStationsA}
function EnumWindowStationsW(lpEnumFunc: WINSTAENUMPROCW; lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumWindowStationsW}
function EnumWindowStations(lpEnumFunc: WINSTAENUMPROC; lParam: LPARAM): BOOL; stdcall;
{$EXTERNALSYM EnumWindowStations}

function CloseWindowStation(hWinSta: HWINSTA): BOOL; stdcall;
{$EXTERNALSYM CloseWindowStation}

function SetProcessWindowStation(hWinSta: HWINSTA): BOOL; stdcall;
{$EXTERNALSYM SetProcessWindowStation}

function GetProcessWindowStation: HWINSTA; stdcall;
{$EXTERNALSYM GetProcessWindowStation}

function SetUserObjectSecurity(hObj: HANDLE; var pSIRequested: SECURITY_INFORMATION;
  pSID: PSECURITY_DESCRIPTOR): BOOL; stdcall;
{$EXTERNALSYM SetUserObjectSecurity}

function GetUserObjectSecurity(hObj: HANDLE; var pSIRequested: SECURITY_INFORMATION;
  pSID: PSECURITY_DESCRIPTOR; nLength: DWORD; var lpnLengthNeeded: DWORD): BOOL; stdcall;
{$EXTERNALSYM GetUserObjectSecurity}

const
  UOI_FLAGS    = 1;
  {$EXTERNALSYM UOI_FLAGS}
  UOI_NAME     = 2;
  {$EXTERNALSYM UOI_NAME}
  UOI_TYPE     = 3;
  {$EXTERNALSYM UOI_TYPE}
  UOI_USER_SID = 4;
  {$EXTERNALSYM UOI_USER_SID}

type
  PUSEROBJECTFLAGS = ^USEROBJECTFLAGS;
  tagUSEROBJECTFLAGS = record
    fInherit: BOOL;
    fReserved: BOOL;
    dwFlags: DWORD;
  end;
  {$EXTERNALSYM tagUSEROBJECTFLAGS}
  USEROBJECTFLAGS = tagUSEROBJECTFLAGS;
  {$EXTERNALSYM USEROBJECTFLAGS}
  TUserObjectFlags = USEROBJECTFLAGS;

function GetUserObjectInformationA(hObj: HANDLE; nIndex: Integer; pvInfo: PVOID;
  nLength: DWORD; var lpnLengthNeeded: DWORD): BOOL; stdcall;
{$EXTERNALSYM GetUserObjectInformationA}
function GetUserObjectInformationW(hObj: HANDLE; nIndex: Integer; pvInfo: PVOID;
  nLength: DWORD; var lpnLengthNeeded: DWORD): BOOL; stdcall;
{$EXTERNALSYM GetUserObjectInformationW}
function GetUserObjectInformation(hObj: HANDLE; nIndex: Integer; pvInfo: PVOID;
  nLength: DWORD; var lpnLengthN…