Problems encountered in changing a CRichEditCtrl selection color.

Question

I have written the following code after creating the CRichEditCtrl

// 06112010 : The following code was added to highlight the textselection in black color instead of the default blue color of CRichEditCtrl. - 1311

{

m_EditControl.SetSel(0,100);
CHARFORMAT2 cf1;
cf1.cbSize = sizeof(CHARFORMAT2);
m_EditControl.GetSelectionCharFormat(cf1);
cf1.dwMask = CFM_BACKCOLOR ;
cf1.dwEffects &= ~CFE_AUTOBACKCOLOR;
cf1.crBackColor = RGB(0,0,0);
m_EditControl.SetSelectionCharFormat(cf1);
m_EditControl.Invalidate();

}

After this I am adding text, but the selection still comes in blue color instead of Black. Could someone please tell me what I am doing wrong?? Thanks, DeV