Unable to clear the text in cedit when read only property is set to TRUE

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I have an CEdit (Edit control) on MFC dialog.

I have set the 'Read-Only' property of the control as TRUE. I am writing a process output to that control. When 'Reset' button is clicked, the text need to be cleared.

What I have tried:

I have used the below code to clear the text.

m_txtProcessOutput.SetWindowTextA("");

But this did not cleared the text.

I have tried setting the Read-Only property to FALSE. Then text is cleared. But the text box need to be Read-Only.

I have tried the below code also when 'Reset' button is clicked.

m_txtProcessOutput.SetReadOnly(0);
m_txtProcessOutput.SetWindowTextA("");
m_txtProcessOutput.SetReadOnly(1);

But this did not workout. Any suggestion is appreciated.

Posted 4-Apr-16 23:47pm

Member 11825032

Updated 5-Apr-16 4:20am

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Comments

Jochen Arndt 5-Apr-16 6:05am

It should work.

You are using the control as process indicator. Check if other code portions will change the text back to something else. I would expect the Reset function to clear also some kind of progess variable.

BTW: Why you are using SetWindowTextA?

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Member 11825032 · Accepted Answer · 2016-04-05T04:20:00

Solution 2

Got the solution.

Used the below code.

CRect rect;
m_txtProcessOutput.SetWindowTextA("");
m_txtProcessOutput.GetWindowRect(&rect);
ScreenToClient(&rect);
InvalidateRect(&rect);
UpdateWindow();

Posted 5-Apr-16 4:20am

Member 11825032