6.gdi对象.txt

vs.net 2002平台上的一些消息函数、GDI对象

#include <afxwin.h>

class MyWindow:public CFrameWnd
{
	public:
		CPen *newPen;
		CBrush *newBrush;
		MyWindow()
		{
			Create(NULL,"Example Window");
		}
		void OnLButtonDown(UINT flag,CPoint point)
		{
			CClientDC dc(this);
			newPen=new CPen(PS_SOLID,5,RGB(0,0,255));
			dc.SelectObject(newPen);
			newBrush=new CBrush(RGB(255,0,0));
			dc.SelectObject(newBrush);
			dc.Rectangle(100,100,500,500);
		}

		void OnRButtonDown(UINT flag,CPoint point)
		{
			CClientDC dc(this);
			newPen=new CPen;
			newPen->CreatePen(PS_DASHDOT,1,RGB(0,255,0));
			dc.SelectObject(newPen);
			newBrush=new CBrush;
			newBrush->CreateHatchBrush(HS_CROSS,RGB(0,0,0));
			dc.SelectObject(newBrush);
			dc.Ellipse(100,100,500,500);
		}
DECLARE_MESSAGE_MAP()
};

BEGIN_MESSAGE_MAP(MyWindow,CFrameWnd) 
	ON_WM_LBUTTONDOWN()	
	ON_WM_RBUTTONDOWN()
END_MESSAGE_MAP()

class MyApp:public CWinApp
{
public:
	BOOL InitInstance()
	{
		MyWindow *MywindowObject=new MyWindow();
		m_pMainWnd=MywindowObject;
		MywindowObject->ShowWindow(SW_SHOWNORMAL);
		return true;
	}
};

MyApp MyAppObject;