#includewindows.h
#includestdlib.h
#includestring.h
long WINAPI WndProc(HWND hwnd,UINT iMessage,UINT wParam,LONG lParam);
BOOL InitWindowsClass(HINSTANCE hInstance);
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow);
int WINAPI WinMain(HINSTANCE hInstance,HINSTANCE hPrevInstance,LPSTR lpCmdLine,int nShowCmd)
MSG message;
if(!InitWindowsClass(hInstance))
return FALSE;
if(!InitWindowsClass(hInstance))
return FALSE;
while(GetMessage(message,0,0,0))
TranslateMessage(message);
DispatchMessage(message);
return message.wParam;
long WINAPI WndProc(HWND hwnd,UINT iMessage,UINT wParam,LONG lParam)
HDC hDc;
HBRUSH hBrush;
HPEN hPen;
PAINTSTRUCT PtStr;//定义了指向绘图信息的构造体变量
POINT points[6]={{100,212},{70,227},{70,250},{130,250},{130,227},{100,212}};
//定义了六个点
switch(iMessage)
case WM_PAINT:
hDc=BeginPaint(hwnd,PtStr);
hPen=(HPEN)GetStockObject(NULL_PEN);//获得系统定义的空笔
SelectObject(hDc,hPen);//抉择画笔
hBrush=(HBRUSH)GetStockObject(BLACK_BRUSH);//获得系统定义的黑画刷
SelectObject(hDc,hBrush);//抉择画刷
LineTo(hDc,50,50);
DeleteObject(hPen);
hPen=CreatePen(PS_SOLID,2,RGB(255,0,0));
SelectObject(hDc,hPen);//抉择画笔
LineTo(hDc,150,150);
LineTo(hDc,100,137);
LineTo(hDc,50,50);
//画三角形
Polyline(hDc,points,6);
Arc(hDc,63,137,138,212,100,137,100,137);
Pie(hDc,213,137,288,212,240,137,260,137);
Rectangle(hDc,213,212,287,250);
RoundRect(hDc,213,100,287,137,20,20);
DeleteObject(hPen);
DeleteObject(hBrush);
EndPaint(hwnd,PtStr);
return 0;
case WM_DESTROY:
PostQuitMessage(0);
return 0;
default:
return (DefWindowProc(hwnd,iMessage,wParam,lParam));
BOOL InitWindows(HINSTANCE hInstance,int nCmdShow)
HWND hwnd;
hwnd=CreateWindow(“WINFILL“,“填充分例法式“,WS_OVERLAPPEDWINDOW,
CW_USEDEFAULT,0,
CW_USEDEFAULT,0,
NULL,NULL,hInstance,NULL);
if(!hwnd)
return FALSE;
/////////////下面那行呈现错误啦////////////////////////////
hWndMain=hwnd;
ShowWindow(hwnd,nCmdShow);
UpdateWindow(hwnd);
return TRUE;
BOOL InitWindowsClass(HINSTANCE hInstance)
WNDCLASS wndclass;
wndclass.cbClsExtra=0;
wndclass.cbWndExtra=0;
wndclass.hbrBackground=(HBRUSH)GetStockObject(WHITE_BRUSH);
wndclass.hCursor=LoadCursor(hInstance,IDC_ARROW);
wndclass.hIcon=LoadIcon(hInstance,“END“);
wndclass.hInstance=hInstance;
wndclass.lpfnWndProc=WndProc;
wndclass.lpszClassName=“WINFILL“;
wndclass.lpszMenuName=NULL;
wndclass.style=CS_HREDRAW | CS_VREDRAW;
return RegisterClass(wndclass);
Compiling...
03.cpp
E:\VC讲义\1-17代码\03\03.cpp(88) : error C2065: ’hWndMain’ : undeclared identifier
E:\VC讲义\1-17代码\03\03.cpp(88) : error C2440: ’=’ : cannot convert from ’struct HWND__ *’ to ’int’
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
Error executing cl.exe.
03.exe - 2 error(s), 0 warning(s)
那个错误怎么纠正啊？