In my application I have CPaneDialog with controls (e.g. Text control). I try to set background color for this CPanelDialog. For this purpose, I overwrited OnEraseBkgnd
BOOL CBgPaneDialog::OnEraseBkgnd(CDC* pDC)
{
CBrush backBrush(RGB(255, 128, 128));
CBrush* pOldBrush = pDC->SelectObject(&backBrush);
CRect rect;
pDC->GetClipBox(&rect); // Erase the area needed
pDC->PatBlt(rect.left, rect.top, rect.Width(), rect.Height(),PATCOPY);
pDC->SelectObject(pOldBrush);
return TRUE;
}
Unfortunately, controls on this CPaneDialog have other background. http://fotoo.pl//out.php?t=964580_text.png
I overwrot next method: OnCtlColor to set caontrol's backgorund.
HBRUSH CBgPaneDialog::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
CBrush br;
br.CreateSolidBrush(RGB(255,255,255));
HBRUSH hbr = (HBRUSH)br;
CWnd *pCheckBox = GetDlgItem(IDC_STATIC); // put ID of your checkbox here.
int a;
if (*pCheckBox == *pWnd)
{
br.DeleteObject();
br.CreateSolidBrush(a=pDC->SetBkColor(RGB(255, 128, 128)));
hbr = (HBRUSH)br;
}
else
hbr = CPaneDialog::OnCtlColor(pDC, pWnd, nCtlColor);
return hbr;
}
The control's background have changed, but not completely. Please see in the picture: http://fotoo.pl//out.php?i=964579_textcontrol.jpg
How can I change background completely for the text control?
Don't return temporary brush. Your code is okay for OnEraseBkgnd()
because it's using the brush, not returning it, but for OnCtlColor
use this instead:
class CMyDialog ...
{
COLORREF BkColor;
CBrush BkBrush;
//...
};
CMyDialog::CMyDialog...
{
BkColor = RGB(0, 255, 255);
BkBrush.CreateSolidBrush(BkColor);
}
HBRUSH CMyDialog::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
//add conditions...
pDC->SetBkColor(BkColor);
return BkBrush;
}
By the way, you can add mfc
tag to your question to get faster answer in future.