我编了一个简单的windows程序，只是创建了一个窗口，编译连接都没有错误。

但运行没结果，即没有出现窗口。

我用messagebox检查了，觉得可能是注册失败，请问该怎么处理。

#include <windows.h> LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevinst, LPSTR lpszCmdLine, int nCmdShow) { HWND hwnd ; MSG Msg; WNDCLASS wndclass; char lpszClassName[]="windowsL"; char lpszTitle[]="My_Windows"; wndclass.style=0; wndclass.lpfnWndProc=WndProc; wndclass.cbClsExtra=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=lpszClassName; if(!RegisterClass(&wndclass)) { MessageBox(NULL,"mistake","check",MB_OK|MB_ICONEXCLAMATION);

return FALSE; } hwnd=CreateWindow(lpszClassName, lpszTitle, WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, NULL, NULL, hInstance, NULL); ShowWindow(hwnd,nCmdShow); 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) { switch(message) { case WM_DESTROY: PostQuitMessage(0); default: return DefWindowProc(hwnd,message,wParam,lParam); } return(0); }

linking... LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main Debug/mywin.exe : fatal error LNK1120: 1 unresolved externals Error executing link.exe.

mywin.exe - 2 error(s), 0 warning(s) ///////////////////////////////////////////////////////////////////////

我是菜鸟。 这是我照着抄的一个windows 程序,编译通过了 但是不能构建.exe文件,不能执行.上面是出错信息, 只知道字面什么意思,但不知道含义.到底怎么了 ? 那位高手给讲讲????先谢谢了!!

///////////////////////////////////////////////////////////////////////// 下面是原程序: #include<windows.h>

#include<string.h> #include<stdio.h> LRESULT CALLBACK WindowFunc(HWND,UINT,WPARAM,LPARAM); char szWinName[]="MyWin"; //name of the window. char str[255] =" "; //hold output string.

int WINAPI WinMain(HINSTANCE hThisInst,HINSTANCE hPrevInst, LPSTR lpszArgs,int nWinMode) {

HWND hwnd; MSG msg; tagWNDCLASSEXA wcl; //define a window class. wcl.cbSize=sizeof(tagWNDCLASSEXA); wcl.hInstance = hThisInst; // handle to this instance wcl.lpszClassName=szWinName;//window class name wcl.lpfnWndProc=WindowFunc;// window function wcl.style=0; // default style

wcl.hIcon=LoadIcon(NULL,IDI_APPLICATION);//standard icon wcl.hIconSm=LoadIcon(NULL,IDI_WINLOGO); //SMALL icon wcl.hCursor=LoadCursor(NULL,IDC_ARROW);//CURSOR style

wcl.lpszMenuName=NULL;//no menu wcl.cbClsExtra=0; // no extra wcl.cbWndExtra=0;// no information needed

//make the window white wcl.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);

// register the window class if(!RegisterClassExA(&wcl))return 0;

//now that a window class has been registered ,a window //can be created. hwnd=CreateWindow( wcl.lpszClassName,// name of the window "Processing WM_CHAR Messages",//title WS_OVERLAPPEDWINDOW,//window style -normal CW_USEDEFAULT,// CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, HWND_DESKTOP, // NO PARENT WINDOW NULL, // NO MENU hThisInst, // handle of this instance of program NULL //no additional arguments ); // display the window ShowWindow(hwnd,nWinMode); UpdateWindow(hwnd);

//create the message loop while(GetMessage(&msg,NULL,0,0)) { TranslateMessage(&msg);// DispatchMessage(&msg); //return cotrol to window 98 }

return msg.wParam;

} // this function is called by window 98 an is passed message // from the message queue

LRESULT CALLBACK WindowFunc(HWND hwnd,UINT message, WPARAM wParam,LPARAM lParam) { HDC hdc;

switch(message){ case WM_CHAR: hdc=GetDC(hwnd); TextOut(hdc,1,1," ",3); printf(str,"%c",(char)wParam); TextOut(hdc,1,1,str,strlen(str)); ReleaseDC(hwnd,hdc); break; case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hwnd,message,wParam,lParam); } 我的问题好像和你的差不多啊！！！ 那个高手指点指点啊！！！

return 0; }