/Samples/Chap09/PopPad1/PopPad1.d
D | 156 lines | 120 code | 32 blank | 4 comment | 8 complexity | bb9b6726b8908f5822c733252f0606b3 MD5 | raw file
- /+
- + Copyright (c) Charles Petzold, 1998.
- + Ported to the D Programming Language by Andrej Mitrovic, 2011.
- +/
- module name;
- 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;
- enum ID_TIMER = 1;
- enum TWOPI =(2 * 3.14159);
- enum ID_SMALLER = 1; // button window unique id
- enum ID_LARGER = 2; // same
- enum BTN_WIDTH = "(8 * cxChar)";
- enum BTN_HEIGHT = "(4 * cyChar)";
- int idFocus;
- WNDPROC[3] OldScroll;
- HINSTANCE hInst;
- enum ID_EDIT = 1;
- string appName = "PopPad1";
- 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)
- {
- 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
- "edit", // 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 hwndEdit;
- switch (message)
- {
- case WM_CREATE:
- hwndEdit = CreateWindow("edit", NULL,
- WS_CHILD | WS_VISIBLE | WS_HSCROLL | WS_VSCROLL |
- WS_BORDER | ES_LEFT | ES_MULTILINE | ES_NOHIDESEL |
- ES_AUTOHSCROLL | ES_AUTOVSCROLL,
- 0, 0, 0, 0, hwnd, cast(HMENU)ID_EDIT,
- (cast(LPCREATESTRUCT)lParam).hInstance, NULL);
- return 0;
- case WM_SETFOCUS:
- SetFocus(hwndEdit);
- return 0;
- case WM_SIZE:
- MoveWindow(hwndEdit, 0, 0, LOWORD(lParam), HIWORD(lParam), TRUE);
- return 0;
- case WM_COMMAND:
- if (LOWORD(wParam) == ID_EDIT)
- if (HIWORD(wParam) == EN_ERRSPACE ||
- HIWORD(wParam) == EN_MAXTEXT)
- MessageBox(hwnd, "Edit control out of space.",
- appName.toUTF16z, MB_OK | MB_ICONSTOP);
- return 0;
- case WM_DESTROY:
- PostQuitMessage(0);
- return 0;
- default:
- }
- return DefWindowProc(hwnd, message, wParam, lParam);
- }