创建HWND(窗口句柄)是Windows应用程序中创建窗口的基本步骤。以下是创建HWND的最简单方法:
WNDCLASSEX
结构体来定义窗口类。WNDCLASSEX wc;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = 0;
wc.lpfnWndProc = WndProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
wc.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wc.lpszMenuName = NULL;
wc.lpszClassName = "MyWindowClass";
wc.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
RegisterClassEx
函数将窗口类注册到系统中。if (!RegisterClassEx(&wc))
{
MessageBox(NULL, "Window Registration Failed!", "Error!", MB_ICONEXCLAMATION | MB_OK);
return 0;
}
CreateWindowEx
函数创建窗口。HWND hWnd = CreateWindowEx(WS_EX_CLIENTEDGE, "MyWindowClass", "My Window", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, 500, 500, NULL, NULL, hInstance, NULL);
ShowWindow
和UpdateWindow
函数显示窗口。ShowWindow(hWnd, nCmdShow);
UpdateWindow(hWnd);
MSG msg;
while (GetMessage(&msg, NULL, 0, 0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
DestroyWindow
函数销毁窗口。DestroyWindow(hWnd);
以上就是创建HWND的最简单方法。在实际开发中,还需要处理各种窗口消息,以实现窗口的各种功能。
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