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在非Dialog窗口中动态创建CheckBox, RadioButton 时, 总有默认的灰色背景, 想了许多方法都未能去除,到最后我只好自己处理WM_PAINT消息了, 郁闷!

template<class BASE_CLASS>
class CTransparentButton : public BASE_CLASS
{
public:
    
virtual LRESULT WindowProc(UINT message, WPARAM wParam, LPARAM lParam)
    {
        
switch (message)
        {
        
case WM_PAINT:
            {
                CPaintDC dc(
this);
                CString iText;
                CRect boxRc, textRc;
                
int wh = 14;
                boxRc.SetRectEmpty();
                GetClientRect(
&textRc);
                textRc.bottom = 20;
                boxRc.top 
= ((int)textRc.Height()/2)-7;
                textRc.left 
= boxRc.right = boxRc.bottom = boxRc.top+wh;
                textRc.left 
+= 2;
                
switch(GetButtonStyle())
                {
                
case BS_AUTOCHECKBOX:
                    {
                        
if(GetCheck())
                            dc.DrawFrameControl(
&boxRc,DFC_BUTTON,DFCS_CHECKED);            
                        
else
                            dc.DrawFrameControl(
&boxRc,DFC_BUTTON,DFCS_BUTTONCHECK);
                    }
                    
break;
                
case BS_AUTORADIOBUTTON:
                    {
                        
if(GetCheck())
                        {
                            dc.DrawFrameControl(
&boxRc,DFC_BUTTON,DFCS_BUTTONRADIO);
                            boxRc.DeflateRect(
6,5);
                            CBrush bkBrush(RGB(
0,0,0));
                            dc.SelectObject(
&bkBrush);
                            dc.RoundRect(
&boxRc,CPoint(boxRc.Width()/2,boxRc.Height()/2));
                        }
                        
else
                            dc.DrawFrameControl(
&boxRc,DFC_BUTTON,DFCS_BUTTONRADIO);
                    }
                    
break;
                }
                GetWindowText(iText);
                dc.SelectStockObject(DEFAULT_GUI_FONT);
                dc.DrawText(iText,
&textRc,DT_VCENTER|DT_SINGLELINE);
            }
            
break;
        }
        
return BASE_CLASS::WindowProc(message, wParam, lParam);
    }
};

使用方法:
protected:
        CTransparentButton<CButton>  m_checkbox;
        CTransparentButton<CButton>  m_radiobtn1;
        CTransparentButton<CButton>  m_radiobtn2;

//-----------------------------------------------------------------
CCustomWnd::OnCreate(LPCREATESTRUCT lpCreateStruct)
{
        if (CWnd::OnCreate(lpCreateStruct) == -1)
                return -1;
         //创建控件
         m_checkbox.Create(_T("CheckBox"),WS_CHILD|WS_VISIBLE|BS_AUTOCHECKBOX,
                CRect(0,20,80,40), this, IDC_CHECKBOX1);
         m_radiobtn1.Create(_T("RadioButton1"),WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON ,
                CRect(0,50,80,70), this, IDC_RADIOBTN1);
         m_radiobtn2.Create(_T("RadioButton2"),WS_CHILD|WS_VISIBLE|BS_AUTORADIOBUTTON ,
                CRect(0,80,80,100), this, IDC_RADIOBTN2);
         //....................
}
      
posted on 2007-04-19 02:04 独孤九剑 阅读(3285) 评论(0)  编辑 收藏 引用 所属分类: Visual C++ 8.0