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C++ Discussion Thread
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Apr 14th, 2009

TextBox Value

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Hi,

How can I show a long value returned from a function to a textbox on a dialog box.

Void CVideoDlg::OnBnClickedFrames()
{
m_AMC.get_FramesDrawn(); // retunrs long
}

I want to display the returned value in textbox as well as a messagebox.

I tried MessageBox(CString(m_AMC.get_FramesDrawn()));

But it didn't work out

anyone can help with that

thx

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gallian99

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Apr 14th, 2009

Re: TextBox Value

you need to use CString's Format() method. It works exactly like printf().

C++ Syntax (Toggle Plain Text)
CString txt;
txt.Format("%d", m_AMC.get_FramesDrawn()));
MessageBox(txt, MB_OK);
CString txt;
txt.Format("%d", m_AMC.get_FramesDrawn()));
MessageBox(txt, MB_OK);

Last edited by Ancient Dragon; Apr 14th, 2009 at 10:32 am.

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Apr 14th, 2009

Re: TextBox Value

Gives the following error: C2664:\void ATL::CStringT<baset type, string traits>::Format(const wchar_t*,...)': cannot convert parameter 1 from 'const char[3] to const wchar_t*

gallian99

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Re: TextBox Value

you are compiling for UNICODE, so param1 should be
L"%d" to force the conversion of the string to wchar_t*. Or it might be preferable to use _TEXT("%d") so that you can turn off UNICODE if you want to and not have to change that line.

Last edited by Ancient Dragon; Apr 14th, 2009 at 11:35 am.

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Apr 15th, 2009

Re: TextBox Value

Thanks man!

gallian99

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Re: TextBox Value

Click to Expand / Collapse Quote originally posted by Ancient Dragon ...

you need to use CString's Format() method. It works exactly like printf().
C++ Syntax (Toggle Plain Text)
CString txt;
txt.Format("%d", m_AMC.get_FramesDrawn()));
MessageBox(txt, MB_OK);
CString txt; txt.Format("%d", m_AMC.get_FramesDrawn())); MessageBox(txt, MB_OK);

Sorry One last thing..

How can I display the output value in an edit box?

thanks

gallian99

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Apr 15th, 2009

Re: TextBox Value

Clicky

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