/Samples/Chap12/ClipView/ClipView.d
D | 164 lines | 127 code | 33 blank | 4 comment | 10 complexity | 8b40cac807422d8de36c544fe6acaf29 MD5 | raw file
- /+
- + Copyright (c) Charles Petzold, 1998.
- + Ported to the D Programming Language by Andrej Mitrovic, 2011.
- +/
- module ClipView;
- import core.runtime;
- import core.thread;
- import std.conv;
- import std.math;
- import std.range;
- import std.string;
- import std.utf;
- auto toUTF16z(S)(S s)
- {
- return toUTFz!(const(wchar)*)(s);
- }
- pragma(lib, "gdi32.lib");
- import core.sys.windows.windef;
- import core.sys.windows.winuser;
- import core.sys.windows.wingdi;
- import core.sys.windows.winbase;
- string appName = "ClipView";
- string description = "Simple Clipboard Viewer (Text Only)";
- enum ID_TIMER = 1;
- HINSTANCE hinst;
- extern (Windows)
- int WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)
- {
- int result;
- try
- {
- Runtime.initialize();
- result = myWinMain(hInstance, hPrevInstance, lpCmdLine, iCmdShow);
- Runtime.terminate();
- }
- catch (Throwable o)
- {
- MessageBox(null, o.toString().toUTF16z, "Error", MB_OK | MB_ICONEXCLAMATION);
- result = 0;
- }
- return result;
- }
- int myWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int iCmdShow)
- {
- hinst = hInstance;
- HWND hwnd;
- MSG msg;
- WNDCLASS wndclass;
- wndclass.style = CS_HREDRAW | CS_VREDRAW;
- wndclass.lpfnWndProc = &WndProc;
- wndclass.cbClsExtra = 0;
- wndclass.cbWndExtra = 0;
- wndclass.hInstance = hInstance;
- wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
- wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
- wndclass.hbrBackground = cast(HBRUSH) GetStockObject(WHITE_BRUSH);
- wndclass.lpszMenuName = NULL;
- wndclass.lpszClassName = appName.toUTF16z;
- if (!RegisterClass(&wndclass))
- {
- MessageBox(NULL, "This program requires Windows NT!", appName.toUTF16z, MB_ICONERROR);
- return 0;
- }
- hwnd = CreateWindow(appName.toUTF16z, // window class name
- description.toUTF16z, // window caption
- WS_OVERLAPPEDWINDOW, // window style
- CW_USEDEFAULT, // initial x position
- CW_USEDEFAULT, // initial y position
- CW_USEDEFAULT, // initial x size
- CW_USEDEFAULT, // initial y size
- NULL, // parent window handle
- NULL, // window menu handle
- hInstance, // program instance handle
- NULL); // creation parameters
- ShowWindow(hwnd, iCmdShow);
- UpdateWindow(hwnd);
- while (GetMessage(&msg, NULL, 0, 0))
- {
- TranslateMessage(&msg);
- DispatchMessage(&msg);
- }
- return msg.wParam;
- }
- extern (Windows)
- LRESULT WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) nothrow
- {
- scope (failure) assert(0);
- static HWND hwndNextViewer;
- HGLOBAL hGlobal;
- HDC hdc;
- PTSTR pGlobal;
- PAINTSTRUCT ps;
- RECT rect;
- switch (message)
- {
- case WM_CREATE:
- hwndNextViewer = SetClipboardViewer(hwnd);
- return 0;
- case WM_CHANGECBCHAIN:
- if (cast(HWND)wParam == hwndNextViewer)
- hwndNextViewer = cast(HWND)lParam;
- else if (hwndNextViewer)
- SendMessage(hwndNextViewer, message, wParam, lParam);
- return 0;
- case WM_DRAWCLIPBOARD:
- if (hwndNextViewer)
- SendMessage(hwndNextViewer, message, wParam, lParam);
- InvalidateRect(hwnd, NULL, TRUE);
- return 0;
- case WM_PAINT:
- hdc = BeginPaint(hwnd, &ps);
- GetClientRect(hwnd, &rect);
- OpenClipboard(hwnd);
- hGlobal = GetClipboardData(CF_UNICODETEXT);
- if (hGlobal != NULL)
- {
- pGlobal = cast(PTSTR)GlobalLock(hGlobal);
- DrawText(hdc, pGlobal, -1, &rect, DT_EXPANDTABS);
- GlobalUnlock(hGlobal);
- }
- CloseClipboard();
- EndPaint(hwnd, &ps);
- return 0;
- case WM_DESTROY:
- ChangeClipboardChain(hwnd, hwndNextViewer);
- PostQuitMessage(0);
- return 0;
- default:
- }
- return DefWindowProc(hwnd, message, wParam, lParam);
- }