Win32 模版程序

#include "windows.h"

ATOM MyRegisterClass(HINSTANCE hInstance);
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow);
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam);

HINSTANCE hInst;

//*********************************************************
// 主程序
//*********************************************************
int APIENTRY WinMain(HINSTANCE hInstance,
                     HINSTANCE hPrevInstance,
                     LPSTR     lpCmdLine,
                     int       nCmdShow)
{
    MSG msg;

    // 注册窗口类
    MyRegisterClass(hInstance);

    // 初始化
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    // 消息循环
    while (GetMessage(&msg, NULL, 0, 0))
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return msg.wParam;
}

//*********************************************************
// 注册窗口类别函数
//*********************************************************
ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEX wcex;

    wcex.cbSize        = sizeof(WNDCLASSEX); 
    wcex.style         = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc   = WndProc;
    wcex.cbClsExtra    = 0;
    wcex.cbWndExtra    = 0;
    wcex.hInstance     = hInstance;
    wcex.hIcon         = LoadIcon(NULL, IDI_APPLICATION);
    wcex.hCursor       = LoadCursor(NULL, IDC_ARROW);
    wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName  = NULL;
    wcex.lpszClassName = TEXT("Test");
    wcex.hIconSm       = NULL;

    return RegisterClassEx(&wcex);
}

//*********************************************************
// 初始化函数
//*********************************************************
BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
    HWND hWnd;
    hInst = hInstance;

    hWnd = CreateWindow(TEXT("Test"), TEXT("Win32 Template") , WS_OVERLAPPEDWINDOW,
        CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, NULL, NULL, hInstance, NULL);
    if (!hWnd)
    {
        return FALSE;
    }

    ShowWindow(hWnd, nCmdShow);
    UpdateWindow(hWnd);

    return TRUE;
}

//*********************************************************
// 窗口过程函数
//*********************************************************
LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    PAINTSTRUCT ps;
    HDC         hdc;

    switch (message) 
    {
    case WM_PAINT:
        hdc = BeginPaint(hWnd, &ps);
        EndPaint(hWnd, &ps);
        break;
    case WM_DESTROY: 
        PostQuitMessage(0);
        break;
    default:             
        return DefWindowProc(hWnd, message, wParam, lParam);
    }

    return 0;
}