为vc按钮添加背景颜色和字体颜色

清疚 2022-06-12 07:49 321阅读 0赞

可以通过重载WM\_DRAWITEM消息来实现，具体函数如下所示：

void CBtncolorDlg::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct)

\{  
// TODO: Add your message handler code here and/or call default  
if(nIDCtl==IDC\_BUTTON1)         //checking for the button   
    \{  
    CDC dc;  
    RECT rect;  
    dc.Attach(lpDrawItemStruct ->hDC);   // Get the Button DC to CDC  
      
    rect = lpDrawItemStruct->rcItem;     //Store the Button rect to our local rect.  
      
    dc.Draw3dRect(&rect,RGB(255,255,255),RGB(0,0,0));   
  
  
    dc.FillSolidRect(&rect,RGB(100,100,255));//Here you can define the required color to appear on the Button.  
   
    UINT state=lpDrawItemStruct->itemState;  //This defines the state of the Push button either pressed or not.   
  
  
    if((state & ODS\_SELECTED))  
    \{  
        dc.DrawEdge(&rect,EDGE\_SUNKEN,BF\_RECT);  
  
  
    \}  
    else  
    \{  
        dc.DrawEdge(&rect,EDGE\_RAISED,BF\_RECT);  
    \}  
  
  
    dc.SetBkColor(RGB(100,100,255));   //Setting the Text Background color  
    dc.SetTextColor(RGB(255,0,0));     //Setting the Text Color  
  
  
  
  
    TCHAR buffer\[MAX\_PATH\];           //To store the Caption of the button.  
    ZeroMemory(buffer,MAX\_PATH );     //Intializing the buffer to zero  
        ::GetWindowText(lpDrawItemStruct->hwndItem,buffer,MAX\_PATH); //Get the Caption of Button Window   
      
    dc.DrawText(buffer,&rect,DT\_CENTER|DT\_VCENTER|DT\_SINGLELINE);//Redraw the  Caption of Button Window   
      
    dc.Detach();  // Detach the Button DC  
    \}                  
    CDialog::OnDrawItem(nIDCtl, lpDrawItemStruct);  
  
  
\}