SimpleWindow3-1.cpp

#include <windows.h>
#include <tchar.h>
#include <stdio.h>


LRESULT CALLBACK WndProc (HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain (HINSTANCE hInstance, HINSTANCE hPrevInstance,
                    PSTR szCmdLine, int iCmdShow)
{
    static TCHAR szAppName[] = TEXT ("HelloWin") ;
    HWND hwnd ;
    MSG msg ;
    WNDCLASS wndclass ;
    wndclass.style = CS_HREDRAW | CS_VREDRAW ;
    wndclass.lpfnWndProc = WndProc ;
    wndclass.cbClsExtra = 0 ;
    wndclass.cbWndExtra = 0 ;
    wndclass.hInstance = hInstance ;
    wndclass.hIcon = LoadIcon (NULL, IDI_APPLICATION) ;
    wndclass.hCursor = LoadCursor (NULL, IDC_ARROW) ;
    wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ; // Undefined Symbol in CodeBlocks ,Works well in Visual Studio
    wndclass.lpszMenuName = NULL ;
    wndclass.lpszClassName = szAppName ;
    if (!RegisterClass (&wndclass))
    {
        MessageBox (NULL, TEXT ("This program requires Windows NT!"),
                    szAppName, MB_ICONERROR) ;
        return 0 ;
    }
    hwnd = CreateWindow (szAppName, // window class name
                         TEXT ("The Hello Program"), // 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))  //That's the heart of the Windows looping 
    {
        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_CREATE:
       // PlaySound(_T("hello.wav"),NULL,SND_FILENAME);
        PlaySound ( TEXT ( "bison.wav"), NULL , SND_SYNC ); //need add lib
        return 0 ;
    case WM_PAINT:
        hdc = BeginPaint (hwnd, &ps) ; //HDC gets its initialisation here 
        GetClientRect (hwnd, &rect) ;
        DrawText(hdc,TEXT("Hello wangyuzhen!"),-1,&rect,DT_SINGLELINE|DT_CENTER|DT_VCENTER);
        EndPaint (hwnd, &ps) ;
        return 0 ;
    case WM_DESTROY:  // When you click the exit button on the windows , will cause Windows to send WM_DESTORY message  here 
        PostQuitMessage (0) ;
        return 0 ;
    }
    return DefWindowProc (hwnd, message, wParam, lParam) ;
}