shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
Quote:
Originally Posted by Ummar
Fine piece of code , very simple yet powerful.
Thanks.
Ummar's Avatar, Join Date: Jul 2008
Newbie Member
It's a very good hint.
Thanx!
Ummar
piyumali2004's Avatar, Join Date: Jan 2009
Newbie Member
Hi,

I'm new to the MFC programming. I need to change the back ground color of the edit boxes in my application. I hope the code provided in the first reply in this thread will do that. But I'm confused with the phrase "Add the WM_CTLCOLR Message handler for the dialog".

Can any one please explain me how can I add that message handler?

Thank You.
Ummar's Avatar, Join Date: Jul 2008
Newbie Member
A/A,

Follow the following steps:

1. Open the .h file (say "uFile.h") in which u want to change the color of a Textbox,
2. Write the declaration as:
public:
afx_msg HBRUSH OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor);
CBrush *brush;

3. Now open your .cpp (uFile.cpp) file,
4. In the Message_Map write ON_WM_CTLCOLOR() message handler as:

BEGIN_MESSAGE_MAP(CVCSDlg, CDialog)
.
.
.
.
.
.
ON_WM_CTLCOLOR()

END_MESSAGE_MAP()


5. Write an event hanler for the Message_Handler as
Code:
HBRUSH CuFile::OnCtlColor(CDC* pDC, CWnd* pWnd, UINT nCtlColor)
{
	HBRUSH hbr = CDialog::OnCtlColor(pDC, pWnd, nCtlColor);

	// TODO:  Change any attributes of the DC here

	switch (1) 
	{ 
 		case 1:
 			pDC->SetTextColor(RGB(255, 255, 255));
 			pDC->SetBkColor(RGB(0, 0, 0));
 			return (HBRUSH)(brush->GetSafeHandle());
 		default:
 			return CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
 	}
	return hbr;
}

Alternatively you can do it as follows:
1. Open the .h or .cpp,
2. Open the properties Window,
3. Click on Messages button at the top of this Properties Window,
4. Search for "OnCtlColor",
5. Click on the right side of it and add the "OnCtlColor",

6. Now you need only to add the following code in the event handler that is generated automatically.

Code:
	switch (1) 
	{ 
 		case 1:
 			pDC->SetTextColor(RGB(255, 255, 255));
 			pDC->SetBkColor(RGB(0, 0, 0));
 			return (HBRUSH)(brush->GetSafeHandle());
 		default:
 			return CDialog::OnCtlColor(pDC, pWnd, nCtlColor);
 	}
	return hbr;
That will work for sure.

If u need further assistance, u r always welcome.

Allah Hafiz!

Last edited by shabbir; 2Jan2009 at 13:57.. Reason: Code blocks
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
That was nice Ummar and some reputation your way.
piyumali2004's Avatar, Join Date: Jan 2009
Newbie Member
Hi,

Thank you very much for your reply. Actually I did it as you said it was successful. You have explained it very well. Thanks lot again for your help.

Continue your good work.

Regards

Piyumali
shabbir's Avatar, Join Date: Jul 2004
Go4Expert Founder
Offtopic comment:
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timkhobau's Avatar, Join Date: Aug 2009
Newbie Member
Thanks you very much.
coolerfantasy's Avatar, Join Date: Sep 2009
Newbie Member
thank you , great code and simplest , though the text still original size
and back ground color limited to text size !