Question

SDK/windows程序设计，最简单的hello worl 编译报错，败求指点

报错：
error LNK2001: unresolved external symbol "long __stdcall WndProc(struct HWND__ *,unsigned int,unsigned int,long)" (?WndProc@@YGJPAUHWND__@@IIJ@Z)
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/NoteBook.exe : fatal error LNK1120: 2 unresolved externals

源码
/*----------------------------------------
NoteBook dante BAN meta_yy 2010
----------------------------------------*/
#include <windows.h>

LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);

int WINAPI WinMain(HINSTANCE hIstance,HINSTANCE hInstance,LPSTR lpCmdLine,int iCmdShow)
{
static TCHAR szAppName[] = TEXT("NoteBook by something");
HWND hwnd;
MSG msg;
WNDCLASS ws;
ws.style = CS_HREDRAW | CS_VREDRAW;
ws.lpfnWndProc = WndProc;
ws.cbClsExtra = 0;
ws.cbWndExtra = 0;
ws.hInstance = hInstance;
ws.hIcon = LoadIcon(NULL,IDI_APPLICATION);
ws.hCursor = LoadCursor(NULL,IDC_ARROW);
ws.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
ws.lpszMenuName = NULL;
ws.lpszClassName = szAppName;

if(!RegisterClass(&ws))
{
MessageBox(NULL,TEXT(" OH NO"),szAppName,MB_ICONERROR);
return 0;
}
hwnd = CreateWindow(
szAppName, // registered class name
TEXT("NOTEBOOK"), // window name
WS_OVERLAPPEDWINDOW, // window style
30, // horizontal position of window
30, // vertical position of window
500, // window width
300, // window height
NULL, // handle to parent or owner window
NULL, // menu handle or child identifier
hInstance, // handle to application instance
NULL // window-creation data
);
ShowWindow(hwnd,iCmdShow);
UpdateWindow(hwnd);

while(GetMessage(&msg,NULL,0,0))
{
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return msg.wParam;

}

LRESULT CALLBACK WinProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rect;

switch(message)
{
case WM_CREATE:
MessageBox(NULL,TEXT("Create Window"),TEXT("note"),MB_ICONERROR);
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd,&ps);
GetClientRect(hwnd,&rect);

DrawText(hdc,TEXT("HELLO WINDOWS"),-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);
}
另自学SDK中的朋友可以加个Q 指点一下新手 1136018016

VC++6.0下报错 ，创建的是win32控制台应用程序，。。

Answer 1

第一,应该新建工程 Win32 Application,然后选择空工程,添加一个源文件,输入代码
第二,你的消息处理函数名字有误
开头:LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM); //这是你声明的函数
ws.lpfnWndProc = WndProc; //这里也正确,这是让windows以后调用这个函数处理事件
下面你定义的消息处理函数名字应该和上面的一样
LRESULT CALLBACK WinProc(HWND hwnd,UINT message,WPARAM wParam,LPARAM lParam) //WinProc 拼错了,应该是WndProc

Answer 2

我用的VC++6.0，