How to change background color of disabled CRichEditCtrl?

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Hi Friends,
I have created a CRichEditCtrl object as bellow and i tried to apply red color as background using SetBackgroundColor() method but its not giving result as i hope.

m_oRichEditCtrl.Create(WS_CHILD|WS_VISIBLE|ES_MULTILINE|ES_READONLY|WS_DISABLED,CRect(0,0,150,150),this,IDC_RICHEDIT);
COLORREF oldColor = m_oRichEditCtrl.SetBackgroundColor(FALSE,COLORREF(RGB(255,0,0)));
m_oRichEditCtrl.SetWindowText("Hello");

I found that when i give WS_DISABLED style, its not applying background color as red.
Is there any way to change background color of richedit control when its disabled?

Should i go for CDialog::OnCtlColor() method to change background color of RichEditCtrl??

Thanks All.

Posted 19-Mar-12 3:41am

Bhavin Jagad

Updated 19-Mar-12 3:52am

v2

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Resmi Anna 20-Mar-12 2:11am

This code should work fine. Are you seing the control as disbled without red background?I tried with the same code. I am getting the rich edit control without red background and i can not edit it since disbled.

Bhavin Jagad 20-Mar-12 3:05am

Thanks,
ya, you are right but i want red background even when the richedit control disabled. do u have any idea?

Resmi Anna 20-Mar-12 4:49am

you mean u want the red colour only when it is disbled?

Bhavin Jagad 20-Mar-12 5:05am

yes

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Resmi Anna · Accepted Answer · 2012-03-19T23:38:00

Solution 1

I am not sure whether OnCtlColor() gets invoked for this rich edit control since created dynamically. So one easiest way to do this is
1. Create a class called CMyRichEditCtrl derived from MFC CRichEditCtrl
2. Handle the WM_ENABLE message within this new class by overriding OnEnable() function
3. Inside the OnEnable() function check its parameter and change the background color accordingly(parameter indicates disable or enable)
4. Make the type of your m_oRichEditCtrl as CMyRichEditCtrl
5. Create the Rich edit control within the OnInitDialog() of your dialog class as below

C++

m_oRichEditCtrl.Create( WS_CHILD|WS_VISIBLE|ES_MULTILINE,
                        CRect0,0,150,150),this,IDC_RICHEDIT );
m_oRichEditCtrl.SetWindowText("Hello");

6. Do not forget to comment CRichEditCtrl::OnEnable(bEnable); inside the OnEnable() function

C++

//CRichEditCtrl::OnEnable(bEnable);

If any clarification needed I can help

Posted 19-Mar-12 23:38pm

Resmi Anna

Comments

Bhavin Jagad 20-Mar-12 6:17am

i do this,

void CMyRichEdit::OnEnable(BOOL bEnable)
{
SetBackgroundColor(FALSE,RGB(255,0,0));
//CRichEditCtrl::OnEnable(bEnable);
}

but not worked.

Resmi Anna 20-Mar-12 6:39am

when you are disabling the richedit control?have you written the code to disable it like below from your main dialog class?
m_oRichEditCtrl->EnableWindow(false);

Bhavin Jagad 20-Mar-12 6:47am

hey, its changing color but not making edit box disabled.
because commented code:

//CRichEditCtrl::OnEnable(bEnable);

I need disabled too, so i uncomment it but it is reverting background color.
so its similar as removing WS_DISABLE style from Create() function.

Resmi Anna 20-Mar-12 7:00am

means you can still type something in the rich edit control and select some text from there after calling EnableWindow(false);????

Bhavin Jagad 20-Mar-12 7:08am

Oh!! sry.. there was my mistake in DDXing control.
Thanks Resmi..Its working as i need.

I had a second problem also,

Resmi Anna 20-Mar-12 7:18am

ok..that sounds great!!!

Member 13475481 27-Mar-19 5:20am

I am facing the same problem. I have applied the same function but it's not working. My CRicheditcontrol is disabled.I want to fix its background and don't want to enable it.P lease help