Win32 SDK（Hello world 2）

#include <windows.h>

LRESULT CALLBACK WndProc (HWND, UINT, WPARAM, LPARAM) ;

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
    PSTR szCmdLine, int iCmdShow)
{
    static TCHAR szAppName[] = TEXT ("HelloWin") ;
    HWND         hwnd ;
    MSG          msg ;
    WNDCLASS     wc ;

    wc.style         = CS_HREDRAW | CS_VREDRAW ;
    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) GetStockObject (WHITE_BRUSH) ;
    wc.lpszMenuName  = NULL ;
    wc.lpszClassName = szAppName ;

    if (!RegisterClass (&wc))
    {

        MessageBox (NULL, TEXT ("This program requires Windows NT!"), 
            szAppName, MB_ICONERROR) ;

        return 0 ;
    }

    hwnd = CreateWindow (szAppName,                  // window class name

        TEXT ("欢迎你的到来!"), // window caption

        WS_OVERLAPPEDWINDOW,        // window style

        CW_USEDEFAULT,              // initial x position

        CW_USEDEFAULT,              // initial y position

        CW_USEDEFAULT,              // initial x size

        CW_USEDEFAULT,              // initial y size

        NULL,                       // parent window handle

        NULL,                       // window menu handle

        hInstance,                  // program instance handle

        NULL) ;                     // creation parameters

    ShowWindow (hwnd, iCmdShow) ;
    UpdateWindow (hwnd) ;

    while (GetMessage (&msg, NULL, 0, 0))
    {

        TranslateMessage (&msg) ;
        DispatchMessage (&msg) ;

    }

    return msg.wParam ;

}

LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    HDC         hdc ;
    PAINTSTRUCT ps ;
    RECT        rect ;

    switch (message)
    {
        case WM_PAINT:

            hdc = BeginPaint (hwnd, &ps) ;
        
            GetClientRect (hwnd, &rect) ;
        
            DrawText (hdc, TEXT ("你好,欢迎你来到VC之路!"), -1, &rect,
                DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;

            EndPaint (hwnd, &ps) ;

            return 0 ;

        case WM_DESTROY:

            PostQuitMessage (0) ;

            return 0 ;

    }

    return DefWindowProc (hwnd, message, wParam, lParam) ;

}