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Q137730: PRB: Cannot Pass Parameters as Float ByVal to VB 4.0 Events

Article: Q137730
Product(s): Microsoft Visual Basic for Windows
Version(s): WINDOWS:4.0
Operating System(s): 
Keyword(s): 
Last Modified: 11-JAN-2001

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The information in this article applies to:

- Microsoft Visual Basic Standard Edition, 32-bit, for Windows, version 4.0 
- Microsoft Visual Basic Professional Edition, 32-bit, for Windows, version 4.0 
- Microsoft Visual Basic Enterprise Edition, 32-bit, for Windows, version 4.0 
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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          :  
Technology        : kbVBSearch kbAudDeveloper kbVB400Search kbVB400
Version           : WINDOWS:4.0
Issue type        : kbprb

=============================================================================

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