界面上添加一個按鈕，把按鈕設置為Owner Draw = true;
添加WM_DRAWITEM消息映射，映射函數為OnDrawItem
void CmfcAppDlg::OnDrawItem(int nIDCtl, LPDRAWITEMSTRUCT lpDrawItemStruct)
{
// TODO: 在此添加消息處理程序代碼和/或調用默認值
CDC ButtonDC;
CRect rc;
ButtonDC.Attach(lpDrawItemStruct->hDC);
//清空繪制
ButtonDC.FloodFill(0,0,TRANSPARENT);
rc = lpDrawItemStruct->rcItem;
//按鈕狀態
UINT state = lpDrawItemStruct->itemState;
//繪制一個邊框
ButtonDC.Draw3dRect(rc,0x0,0x100);
//背景色透明
ButtonDC.SetBkMode(TRANSPARENT);
//當按鈕為焦點狀態
if(state & ODS_FOCUS){
CString str = L"焦點狀態";
ButtonDC.DrawText(str,str.GetLength(),&rc,DT_CENTER | DT_VCENTER | DT_SINGLELINE);
}else{
CString str = L"失去焦點";
ButtonDC.DrawText(str,str.GetLength(),&rc,DT_CENTER | DT_VCENTER | DT_SINGLELINE);
}
CDialog::OnDrawItem(nIDCtl, lpDrawItemStruct);
}
posted on 2009-01-15 12:41
BirdsHover 閱讀(1371)
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