gokdgractice.zip

#include "afxwin.h" #include "resource.h" class CMyWnd:public CFrameWnd { CRect m_rectBody; public: CMyWnd(){m_rectBody=CRect(100,100,150,180); } protected: afx_msg void OnKeyDown(UINT nChar,UINT nRepcnt,UINT nFlags); afx_msg void OnPaint(); DECLARE_MESSAGE_MAP() }; BEGIN_MESSAGE_MAP(CMyWnd,CFrameWnd) ON_WM_KEYDOWN() ON_WM_PAINT() END_MESSAGE_MAP() //框架窗口类的成员函数 void CMyWnd::OnKeyDown(UINT nChar,UINT nRepcnt,UINT nFlags) { CRect rectClient; GetClientRect(&rectClient); InvalidateRect(m_rectBody,TRUE); switch(nChar) { case VK_UP: if(m_rectBody.top>rectClient.top) { m_rectBody.top-=5; m_rectBody.bottom-=5; } break; case VK_DOWN: if (m_rectBody.bottom<rectClient.bottom) { m_rectBody.top+=5; m_rectBody.bottom+=5; } break; case VK_LEFT: if (m_rectBody.left>rectClient.left) { m_rectBody.left-=5; m_rectBody.right-=5; } break; case VK_RIGHT: if (m_rectBody.right<rectClient.right) { m_rectBody.left+=5; m_rectBody.right+=5; } break; } InvalidateRect(m_rectBody,FALSE); } void CMyWnd::OnPaint() { CPaintDC dc(this); dc.SelectStockObject(LTGRAY_BRUSH); dc.Ellipse(m_rectBody); dc.TextOut(150,0,"按方向键控制物体的移动示例！"); } //应用程序类 class CMyApp:public CWinApp { public: BOOL InitInstance(); }; BOOL CMyApp::InitInstance() { /* CMyWnd*pFrame=new CMyWnd; pFrame->Create(0,_T("Move Ellipse With Keyboard")); pFrame->ShowWindow(m_nCmdShow); pFrame->UpdateData(); this->m_pMainWnd=pFrame; return TRUE; */ //一下是修改后的另外一种应用！ HICON hIcon; hIcon=LoadIcon(IDI_ICON1); CMyWnd*pFrame=new CMyWnd; pFrame->Create(0,_T("吹泡泡程序")); pFrame->SetIcon(hIcon,TRUE); pFrame->SetIcon(hIcon,FALSE); pFrame->ShowWindow(m_nCmdShow); this->m_pMainWnd=pFrame; return TRUE; } //全局应用程序对象 CMyApp ThisApp;