打开文件问题
VC6下
--------------------Configuration: SimpleDispaly - Win32 Debug--------------------
Compiling...
SimpleDispaly.c
Linking...
LIBCD.lib(crt0.obj) : error LNK2001: unresolved external symbol _main
Debug/SimpleDispaly.exe : fatal error LNK1120: 1 unresolved externals
Error executing link.exe.
SimpleDispaly.exe - 2 error(s), 0 warning(s)
这是程序代码,请问错误出在哪里?
#include <windows.h>
#include <stdio.h>
LRESULT CALLBACK WndProc(HWND,UINT,WPARAM,LPARAM);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpcmdLine,int nCmdShow)
{
static TCHAR szAppName[]=TEXT("SimpleDisplay");
static TCHAR szClassName[]=TEXT("SimDispalyClass");
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=szClassName;
if(!RegisterClass(&wndclass))
{
MessageBox(NULL,TEXT("This program requires Window NT!"),
szAppName,MB_ICONERROR);
return 0;
}
hwnd=CreateWindow(szClassName,TEXT("Source Text Simple Display Program"),
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)
{
static int cxChar ,cyChar;
int cLineNumber;
TCHAR szBuff[256];
HDC hdc;
PAINTSTRUCT ps;
TEXTMETRIC tm;
FILE *fp;
switch(message)
{
case WM_CREATE:
hdc=GetDC(hwnd);
GetTextMetrics(hdc,&tm);
cxChar=tm.tmAveCharWidth;
cyChar=tm.tmHeight+tm.tmExternalLeading;
ReleaseDC(hwnd,hdc);
return 0;
case WM_PAINT:
hdc=BeginPaint(hwnd,&ps);
cLineNumber=0;
if((fp=fopen("SimleDisplay.c","r"))!=NULL)
{
while(!feof(fp))
{
int i=0;
char ch;
while((ch=fgetc(fp))!='\n'&&ch!=EOF)
if(ch!='\t')
szBuff[i++]=ch;
TextOut(hdc,cxChar,cyChar*cLineNumber,szBuff,i);
cLineNumber++;
}
fclose(fp);
}
EndPaint(hwnd,&ps);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd,message,wParam,lParam);
}