Knowledge Base

PRB: Cannot Pass Parameters as Float ByVal to VB 4.0 Events

Article ID: 137730

Article Last Modified on 11/18/2003


APPLIES TO


This article was previously published under Q137730

SYMPTOMS

OLE Custom Controls cannot pass parameters as Float ByVal to Visual Basic version 4.0 events.

RESOLUTION

Change the ByVal float param to a float*.

STATUS

This behavior is by design.

MORE INFORMATION

Sample Code in the Bind OLE Custom Control

void CBindCtrl::OnLButtonUp(UINT nFlags, CPoint point)
{
// TODO: Add your message handler code here and/or call default

   float fHH = 100.9f ;

// Floatbug is an event in the OCX
    FireFloatbug(&fHH) ;

   COleControl::OnLButtonUp(nFlags, point);
}
				

Sample Code in the Bind OLE Custom Control Event in Visual Basic 4.0

Private Sub Bind1_Floatbug(fTmp As Single)
   MsgBox CStr(fTmp)
End Sub
				

Additional query words: 4.00 vb4win vb432

Keywords: kbprb KB137730