有个错误，怎么也编译不过，卧室按书上写的？？？？

[暗示的味道]

#include<windows.h>
#include<tchar.h>
LRESULT CALLBACK WndProc (HWND ,UINT ,WPARAM ,LPARAM );
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstrance,PSTR szCmdLine,int iCmdShow)
{
WNDCLASS wndclass;
MSG msg;
HWND hwnd;
static TCHAR szname[]=_T("hello");
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(BLACK_BRUSH);
wndclass.lpszMenuName=NULL;
wndclass.lpszClassName=szname;
if(!RegisterClass(&wndclass))
{
MessageBox(NULL,_T("aaa"),szname,MB_ICONERROR);
return 0;
}
hwnd=CreateWindow(szname,
_T("aa"),
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(_T("aaa"),NULL,SND_FILENAME|SND_ASYNC);
return 0;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
DrawText(hdc,_T("hello"),-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);
}
>q.obj : error LNK2019: 无法解析的外部符号 __imp__PlaySoundW@12，该符号在函数 "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z) 中被引用
1>c:\Documents and Settings\Administrator\My Documents\Visual Studio 2010\Projects\win\Debug\win.exe : fatal error LNK1120: 1 个无法解析的外部命令

[boylafong]

无法解析的外部命令 90%原因是找不到动态库函数 要不就是动态库函数没有定义，要不就是找不到对应动态库

[zgl7903]

Header: Declared in mmsystem.h. Import Library: Use winmm.lib. 包含头文件和库

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

[暗示的味道]

哦原来是这样！！！谢谢我还想问问怎么获得可用分啊？？？？