关于PlaySound的问题
#include <Windows.h>LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);int WINAPI WinMain( __in HINSTANCE hInstance, __in_opt HINSTANCE hPrevInstance, __in LPSTR szCmdLine, __in 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); 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, TEXT("The Hello Program"), WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); 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_CREATE: PlaySound(TEXT("hellowin.wav"),NULL,SND_FILENAME|SND_ASYNC); return 0; case WM_PAINT: hdc = BeginPaint(hwnd,&ps); GetClientRect(hwnd,&rect); DrawText(hdc,TEXT("Hello,Windows 98!"),-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);}