Thank you for your help! I started to figure out somethings. Now my problem is implementing this code. It does not work in this way. I'm sure that Null_BRUSH implementation is right. Any suggestion?
Code:void CDrawView::OnUpdateFillcolorTransparent(CCmdUI* pCmdUI) { CBrush brush;//I guess these are wrong pCmdUI->SetCheck(brush.CreateStockObject(NULL_BRUSH));// }Code:void CDrawView::OnFillcolorTransparent() { CBrush brush; brush.CreateStockObject(NULL_BRUSH); }