Guys, can someone give me a brief run through of how to change the background colour of a CEdit control at runtime? I want to be able to change the background to red if the field is zero length and the normal white otherwise.
+1
A:
You cannot do it with a plain CEdit, you need to override a few bits.
Implement your own ON_WM_CTLCOLOR_REFLECT handler, then return your coloured CBrush in the handler:
(roughly, you'll need to put the usual resource management in there, rememebr to delete your brush in the destructor)
class CColorEdit : public CEdit
{
....
CBrush m_brBkgnd;
afx_msg HBRUSH CtlColor(CDC* pDC, UINT nCtlColor)
{
m_brBkgnd.DeleteObject();
m_brBkgnd.CreateSolidBrush(nCtlColor);
}
}
gbjbaanb
2008-10-20 10:59:39