73 lines
1.6 KiB
C++
73 lines
1.6 KiB
C++
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#ifndef UNICODE
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#define UNICODE
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#endif
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#include "windows.h"
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LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
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int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow)
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{
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// Register the window class.
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const wchar_t CLASS_NAME[] = L"Sample Window Class";
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WNDCLASS wc = { };
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wc.lpfnWndProc = WindowProc;
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wc.hInstance = hInstance;
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wc.lpszClassName = CLASS_NAME;
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RegisterClass(&wc);
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HWND hwnd = CreateWindowEx(
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0, // Optional window styles.
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CLASS_NAME, // Window class
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L"Learn to Program Windows", // Window text
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WS_OVERLAPPEDWINDOW, // Window style
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// Size and position
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CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT,
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NULL, // Parent window
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NULL, // Menu
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hInstance, // Instance handle
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NULL // Additional application data
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);
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if (hwnd == NULL)
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{
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return 0;
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}
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ShowWindow(hwnd, nCmdShow);
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// Run the message loop.
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MSG msg = { };
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while (GetMessage(&msg, NULL, 0, 0))
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{
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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return 0;
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}
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LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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switch (uMsg)
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{
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case WM_DESTROY:
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PostQuitMessage(0);
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return 0;
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case WM_PAINT:
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{
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PAINTSTRUCT ps;
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HDC hdc = BeginPaint(hwnd, &ps);
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FillRect(hdc, &ps.rcPaint, (HBRUSH)(COLOR_WINDOW + 1));
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EndPaint(hwnd, &ps);
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}
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}
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return DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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