Edit control background + Vista

 

I have a plugin implementaion, developed for Acrobat 8.1.2

 professional/Windows Xp,  in that i have a dialog box which has an Edit control, some times i want to change the background of that edit control to highlight the contents of the edit box, it is working fine on windows Xp, but the same plug-in when i used on Vista system, not changing the background color,  this is code fragment

CDC *pDC;    COLORREF    m_RedColor;

 m_RedColor = RGB(0,255,255);

 DDX_Control(pDX, IDC_EDIT_Keyword, m_editKeyword );

 m_editKeyword.SetFocus();

 pDC->SetBkColor( m_RedColor );

But when i click on the edit box it is changing background on Vista,

why it is doing like, not changing as in windows XP system(means before clicking on edit box).

Any help would be highly appreciated.

 

thank you,

palaksha