LNK2001错误

[MessiahLS]

#include <windows.h>

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); // register WND

int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hprevInstance,
PSTR lpCmdLine,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 WindowsNT"),
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 WndPorc(HWND hwnd,UINT message,
WPARAM wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;

switch(message)
{
case WM_CREATE:
//PlaySound(TEXT("a.wav"),NULL,SND_FILENAME|SND_ASYNC);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);
DrawText(hdc,TEXT("Hello,Windows98!"),-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);
}


--------------------Configuration: HELLOWORD - Win32 Debug--------------------
Linking...
HelloMsg.obj : error LNK2001: unresolved external symbol _WndProc@16
Debug/HELLOWORD.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.

HELLOWORD.exe - 2 error(s), 0 warning(s)


这是怎么回事？？？？是缺少了哪个Lib文件？

[oopig]

你的WndProc没有函数体定义，当然连接不过。

[晨星]

呵呵，编译器都提示了，楼主怎么不好好检查检查？
你的窗口函数声明时叫“WndProc”，定义时却叫“WndPorc”。：）

[MessiahLS]

^_^，谢谢大家了，辛苦了！！！！