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  1. #include <windows.h>
  2.  
  3. // Этот коллбэк будет вызываться операционной системой, когда она захочет
  4. //   передать какую-либо информацию.
  5. LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
  6.  
  7.     switch (uMsg) {
  8.  
  9.     case WM_DESTROY:
  10.         PostQuitMessage(0);
  11.         break;
  12.  
  13.     default:
  14.         return DefWindowProc(hWnd, uMsg, wParam, lParam);
  15.     }
  16.  
  17.     return 0;
  18. }
  19.  
  20. int CALLBACK WinMain(HINSTANCE hInst, HINSTANCE hPrev, LPSTR lpCmdLine,
  21.         int nCmdShow) {
  22.  
  23.     MSG msg;
  24.     WNDCLASS wc;
  25.  
  26.     wc.style = 0;
  27.     wc.lpfnWndProc = &WindowProc; // Передача ссылки на функцию
  28.     wc.cbClsExtra = 0;
  29.     wc.cbWndExtra = 0;
  30.     wc.hInstance = hInst;
  31.     wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
  32.     wc.hCursor = LoadCursor(NULL, IDC_ARROW);
  33.     wc.hbrBackground = (HBRUSH) (COLOR_WINDOW + 1);
  34.     wc.lpszMenuName = NULL;
  35.     wc.lpszClassName = "MainWindowClass";
  36.  
  37.     if (!RegisterClass(&wc))
  38.         return FALSE;
  39.  
  40.     HWND hWnd = CreateWindow(wc.lpszClassName, "Hello World",
  41.             WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
  42.             CW_USEDEFAULT, (HWND)NULL, (HMENU)NULL, hInst, (LPVOID)NULL);
  43.  
  44.     if (!hWnd)
  45.         return FALSE;
  46.  
  47.     ShowWindow(hWnd, nCmdShow);
  48.     UpdateWindow(hWnd);
  49.  
  50.     BOOL bRet;
  51.     while ((bRet = GetMessageA(&msg, NULL, 0, 0)) != 0) {
  52.         if (bRet == -1) {
  53.             return GetLastError();
  54.         } else {
  55.             TranslateMessage(&msg);
  56.             DispatchMessage(&msg);
  57.         }
  58.     }
  59.  
  60.     // Return the exit code to the system.
  61.     return msg.wParam;
  62. }
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
prog.c:1:21: fatal error: windows.h: No such file or directory
compilation terminated.
stdout
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Standard output is empty
https://ideone.com/qzuf7T
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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