Windows窗口模板

#include<windows.h>
LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdshow) {
    static TCHAR szAppName[] = TEXT("你好");
    HWND hwnd;
    MSG msg;
    WNDCLASS wndclass;
    wndclass.style = CS_VREDRAW | CS_HREDRAW;  // 窗口风格
    wndclass.lpfnWndProc = WindowProc;         // 消息响应
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    wndclass.hInstance = hInstance;            // 句柄
    wndclass.hIcon = LoadIcon(NULL, IDI_ERROR); // 图标
    wndclass.hCursor = LoadCursor(NULL, IDI_APPLICATION); // 光标
    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); // 背景
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szAppName;
    if (!RegisterClass(&wndclass)) {
        MessageBox(NULL, TEXT("此程序需要Windows NT!"), szAppName, MB_ICONERROR);
        return 0;
    }
    hwnd = CreateWindow(
        szAppName,
        TEXT("第二个程序"),
        WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, // 初始 x 位置
        CW_USEDEFAULT, // 初始 y 位置
        CW_USEDEFAULT, // 初始 x 大小
        CW_USEDEFAULT, // 初始 y 大小
        NULL,          // 父窗口句柄
        NULL,          // 窗口菜单句柄
        hInstance,     // 程序实例句柄
        NULL           // 创建参数
    );
    ShowWindow(hwnd, nCmdshow);
    UpdateWindow(hwnd);
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return 0;
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
    HDC hdc;
    PAINTSTRUCT ps;
    RECT rect;
    switch (uMsg) {
        case WM_CREATE:
            return 0;
        case WM_PAINT:
            return 0;
        case WM_DESTROY:
            return 0;
    }
    return DefWindowProc(hwnd, uMsg, wParam, lParam);
}
</windows.h>