现在呢？哪儿的问题？
[box=white]#include "stdafx.h"
#include "math.h"
#include <windows.h>
#include <stdio.h>
// a.cpp : Defines the entry point for the application.
//
LRESULT _stdcall WndProc(HWND,UNIT,WPARAM,LPARAM);
int APIENTRY WinMain(HINSTANCE hInstance,
HINSTANCE hPrevInstance,
LPSTR lpCmdLine,
int nCmdShow)
{
// TODO: Place code here.
char szClassName[]="MainWClass";
WNDCLASSEX wndclass;
wndclass.cbSize=sizeof(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;
wndclass.hIconSm=NULL;
::RegisterClassEx(&wndclass);
HWND hwnd=::CreateWindowEx(0,szClassName,"My first Window!",WS_OVERLAPPEDWINDOW,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,CW_USEDEFAULT,NULL,NULL,hInstance,NULL);
if(hwnd==NULL)
{
::MessageBox(NULL,"创建窗口出错！","error",MB_OK);
return -1;
}
::ShowWindow(hwnd,nCmdShow);
::UpdateWindow(hwnd);
MSG msg;
while(::GetMessage(&msg,NULL,0,0))
{
::TranslateMessage(&msg);
::DispatchMessage(&msg);
}
return msg.wParam;
}
LRESULT _stdcall WndProc(HWND hWnd,UNIT message,WPARAM wParam,LPARAM lParam)
{
#define SEGMENTS 500
#define PI 3.1415926
HDC hdc;
PAINTSTRUCT ps;
RECT rt;
int cxClient,cyClient;
POINT pt[SEGMENTS];
int i;
switch(message)
{
case WM_PAINT:
hdc=::BeginPaint(hWnd,&ps);
::GetClientRect(hWnd,&rt);
cxClient=rt.right-rt.left;
cyClient=rt.bottom-rt.top;
::MoveToEx(hdc,0,cyClient/2,NULL);
::LineTo(hdc,cxClient,cyClient/2);
for(i=0;i<SEGMENTS;i++)
{
pt.x=cxClient*i/SEGMENTS;
pt.y=(int)((cyClient/2)*(1-sin(2*PI*i/SEGMENTS)));
}
::Polyline(hdc,pt,SEGMENTS);
::EndPaint(hWnd,&ps);
break;
case WM_DESTROY:
::PostQuitMessage(0);
break;
}
return ::DefWindowProc(hWnd,message,wParam,lParam);
}
--------------------Configuration: a - Win32 Debug--------------------
Compiling...
a.cpp
C:\my works\a\a.cpp(10) : error C2061: syntax error : identifier 'UNIT'
C:\my works\a\a.cpp(24) : error C2440: '=' : cannot convert from 'long (__stdcall *)(struct HWND__ *)' to 'long (__stdcall *)(struct HWND__ *,unsigned int,unsigned int,long)'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
C:\my works\a\a.cpp(52) : error C2061: syntax error : identifier 'UNIT'
C:\my works\a\a.cpp(62) : error C2065: 'message' : undeclared identifier
C:\my works\a\a.cpp(83) : error C2065: 'wParam' : undeclared identifier
C:\my works\a\a.cpp(83) : error C2065: 'lParam' : undeclared identifier
Error executing cl.exe.
a.obj - 6 error(s), 0 warning(s)
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