win32 调用多媒体函数PlaySound()

必须引入此头文件

#include <mmsystem.h>
#pragma comment(lib, "WINMM.LIB")

 /*------------------------------------------------------------
    HELLOWIN.C -- Displays "Hello, Windows 98!" in client area
                  (c) Charles Petzold,
   ------------------------------------------------------------*/

 #include "StdAfx.h"
 #include <windows.h>
 #include <mmsystem.h>
 #pragma comment(lib, "WINMM.LIB")

 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     wndclass ;

      wndclass.style         = CS_HREDRAW | CS_VREDRAW ;
      wndclass.lpfnWndProc   = WndProc ;
      wndclass.cbClsExtra    =  ;
      wndclass.cbWndExtra    =  ;
      wndclass.hInstance     = hInstance ;
      wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION) ;
      wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW) ;
      wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH) ;
      wndclass.lpszMenuName  = NULL ;
      wndclass.lpszClassName = szAppName ;

      if (!RegisterClass (&wndclass))
      {
           MessageBox (NULL, TEXT ("This program requires Windows NT!"),
                       szAppName, MB_ICONERROR) ;
           return  ;
      }

      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, , ))
      {
           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 (TEXT ("hellowin.wav"), NULL, SND_FILENAME | SND_ASYNC) ;
           return  ;

      case WM_PAINT:
           hdc = BeginPaint (hwnd, &ps) ;

           GetClientRect (hwnd, &rect) ;

           DrawText (hdc, TEXT ("Hello, Windows 98!"), -, &rect,
                     DT_SINGLELINE | DT_CENTER | DT_VCENTER) ;

           EndPaint (hwnd, &ps) ;
           return  ;

      case WM_DESTROY:
           PostQuitMessage () ;
           return  ;
      }
      return DefWindowProc (hwnd, message, wParam, lParam) ;
 }

需要注意根目录下存在音频文件

hellowin.wav