Set size of an ActiveX control at runtime.

I'm using an ActiveX control. I've created it using the following function:

m_pNMEdit->Create(NULL, NULL, WS_VISIBLE, rect, this, 4545, NULL);

How can i change it's size? I haven't found any method in it. There must be a method like SetSize() or SetWidth ...
By the way, this control is created by subclassing the COleControl.
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The wrapper class for the ActiveX control is derived from CWnd. So call CWnd::SetWindowPos to resize it.

m_pNMEdit->SetWindowPos(NULL, 0, 0, nWidth, nHeight, SWP_NOZORDER | SWP_NOMOVE);
MindoAuthor Commented:
My program crashes when it tries to execute your code. I did the following:

m_pNMEdit->SetWindowPos(this, 0, 0, 20, 20, SWP_NOZORDER | SWP_NOMOVE);

I'm trying to change the size of the inner control in the OnSize() event of the outer control. Unfortunately, it also crashes in the OnDraw() event.

The only place where it doesn't crash is the Init() method of the outer control:

void CNMComboBoxCtrl::Init()
m_pNMEdit->SetWindowPos(this, 0, 0, 20, 20, SWP_NOZORDER | SWP_NOMOVE);


m_pNMEdit is declared as:
CNMEdit* m_pNMEdit;

I create the control in the Init() method.

The error message i receive is:
The instruction referenced memory "...", the memory couldn't be "read".

What could be wrong with it? Thanks.
Call m_pNMEdit->SetWindowPos after m_pNMEdit->Create.
MindoAuthor Commented:
The program doesn't crash if i call it after the Create() invocation. There's no use of invoking the SetWindowPos() after Create(), because i can set the size of the control in the Create() function.

I want to change the size of the inner control at run-time, for example when the outer control's size changes.

You can call m_pNMEdit->SetWindowPos at any time after m_pNMEdit->Create provided m_pNMEdit is valid.

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