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About use ActiveX Control's properties in VB

Posted on 2000-03-09
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Last Modified: 2013-11-20
I Created a ActiveX Control's using MFC ActiveX Control Wizard in VC++. As soon as I set the properties' value use the built control in vb,I found that its self-defined properties' value disapeared at run-time,and when I stop the application in vb's debug mode, their value was recleared. why?
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Question by:ycl
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4 Comments
 
LVL 3

Accepted Solution

by:
Norbert earned 50 total points
ID: 2601281
did you implement DoPropExchange ?
example:
void CYourCtrl::DoPropExchange(CPropExchange* pPX) /*\L1\L2 $Workfile: KKOSetCtl.cpp $*/
{
/*\B2
 * Persistence support
 * This function does the persistent storage of propertys in VB component documents.
 *
 * Returnvalue: void
 *
 *\E2*/

      ExchangeVersion(pPX, MAKELONG(_wVerMinor, _wVerMajor));
      COleControl::DoPropExchange(pPX);

      PX_String(pPX, _T("Property1"), m_Prop1, "");
      PX_String(pPX, _T("Property2"), m_Prop2, "");
      PX_Bool  (pPX, _T("Property3"), m_Prop3, TRUE);
....
}
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Author Comment

by:ycl
ID: 2602852
Thank you!
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Author Comment

by:ycl
ID: 2602985
But another problem is why when changed the value in property page,the values  did not present in VB's build-in Property Window immediately?
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LVL 3

Expert Comment

by:Norbert
ID: 2603646
there is a function setModifyFlag
and BoundPropertyChanged
did you call them ?
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