BUG: COleControl::SetControlSize Function Does Not Work (270029)

SYMPTOMS

When you use the COleControl::SetControlSize function from within a Windows CE (WCE) Microsoft Foundation Classes (MFC) ActiveX ControlWizard generated ActiveX control, the ActiveX control does not resize properly.

RESOLUTION

To solve the problem, in addition to calling the COleControl::SetControlSize function, also call the SetWindowPos Win32 API function to resize the parent window of the control as shown in the following code example:

BOOL gfTest = FALSE;

void CMYCONTROLCtrl::OnLButtonDown(UINT nFlags, CPoint point) 
{
	if (gfTest) {
		gfTest = FALSE;
		((CWnd*)this)->GetParent()->SetWindowPos(NULL, 0, 0, 100, 100, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
		SetControlSize(100, 100);
	}
	else {
		gfTest = TRUE;
		((CWnd*)this)->GetParent()->SetWindowPos(NULL, 0, 0, 200, 200, SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE);
		SetControlSize(200, 200);
	}

	COleControl::OnLButtonDown(nFlags, point);
}

MORE INFORMATION

Steps to Reproduce Behavior

Create a new ActiveX control by using the eVC WCE MFC ActiveX Control Wizard and accept all the default settings.
Use the ClassWizard to add a handler for the WM_LBUTTONDOWN message.

Within the message handler add the following code, which does resize the control when you left-click the control:

BOOL gfTest = FALSE;

void CMYCONTROLCtrl::OnLButtonDown(UINT nFlags, CPoint point) 
{
	// TODO: Add your message handler code here and/or call default
	if (gfTest) {
		gfTest = FALSE;
		SetControlSize(100, 100);
	}
	else {
		gfTest = TRUE;
		SetControlSize(200, 200);
	}

	COleControl::OnLButtonDown(nFlags, point);
}