给你3角类
class CTriangleButton : public CButton
{
public:
enum POINTDIRECTION {POINT_UP, POINT_DOWN, POINT_LEFT, POINT_RIGHT};
// Construction
public:
CTriangleButton();
virtual ~CTriangleButton();
// Attributes
public:
protected:
POINTDIRECTION PointDirection;
CRgn CurrentRegion;
// Operations
public:
// Overrides
// ClassWizard generated virtual function overrides
//{{AFX_VIRTUAL(CTriangleButton)
public:
virtual void DrawItem(LPDRAWITEMSTRUCT lpDrawItemStruct);
protected:
virtual void PreSubclassWindow();
//}}AFX_VIRTUAL
public:
//note: SetWindowPos decreases the cx, cy parameter to nearest number dividable by two
BOOL SetWindowPos(const CWnd* pWndInsertAfter, int x, int y, int cx, int cy, UINT nFlags );
// Implementation
public:
void SetDirection(POINTDIRECTION PointDirection); //sets the direction of triangle
POINTDIRECTION GetDirection(); //gets the direction of triangle
// Generated message map functions
protected:
//{{AFX_MSG(CTriangleButton)
//}}AFX_MSG
DECLARE_MESSAGE_MAP()
};
