Article: Q131100
Product(s): Microsoft C Compiler
Version(s): winnt:2.0,2.1,5.0
Operating System(s):
Keyword(s): kbole kbdocfix kbdocerr kbActiveX kbMFC kbVC500bug kbVC600fix kbGrpDSMFCATL
Last Modified: 06-MAY-2001
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The information in this article applies to:
- The Microsoft Foundation Classes (MFC), used with:
- Microsoft Visual C++ for Windows, 16-bit edition, versions 1.5, 1.51, 1.52
- Microsoft Visual C++, 32-bit Editions, versions 2.0, 2.1
- Microsoft Visual C++, 32-bit Enterprise Edition, version 5.0
- Microsoft Visual C++, 32-bit Professional Edition, version 5.0
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SUMMARY
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The documentation for COleClientItem::DoDragDrop(),
COleServerItem::DoDragDrop(), and COleDataSource::DoDragDrop() give the
following incorrect information for the lpRectStartDrag parameter:
In Visual C++ Prior to 5.0
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lpRectStartDrag:
Pointer to the rectangle that defines where the drag
actually starts. It does not start until the mouse cursor leaves the
rectangle. If NULL, a default rectangle is used so that the drag
starts when the mouse cursor moves one pixel.
In Visual C++ 5.0
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Call the DoDragDrop member function to perform a drag-and-drop operation. The
drag-and-drop operation does not start immediately. It waits until the mouse
cursor leaves the rectangle specified by lpRectStartDrag or until a specified
number of milliseconds have passed. If lpRectStartDrag is NULL, the size of the
rectangle is one pixel. The delay time is specified by the DragDelay value in
the [Windows] section of WIN.INI. If this value is not in WIN.INI, the default
value of 200 milliseconds is used.
Correction
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The documentation for the lpRectStartDrag parameter for DoDragDrop() should be:
lpRectStartDrag:
Pointer to the rectangle that defines where the drag
actually starts. It does not start until the mouse cursor leaves the
rectangle or until a specific number of milliseconds has passed. If
NULL, a default rectangle is used so that the drag starts when the
mouse cursor moves one pixel. The number of milliseconds is specified
by a registry key setting. The value can be found in the Windows NT
system registry under the key HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\
Windows\NT\CurrentVersion\IniFileMapping\win.ini\Windows\DragDelay,
or in the WIN.INI file under the [Windows] section if running under
Windows version 3.x. If the key is not present, a default value of 200
milliseconds is used.
This problem was corrected in Visual C++ version 6.0 for Windows.
Additional query words:
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Keywords : kbole kbdocfix kbdocerr kbActiveX kbMFC kbVC500bug kbVC600fix kbGrpDSMFCATL
Technology : kbAudDeveloper kbMFC
Version : winnt:2.0,2.1,5.0
Solution Type : kbfix
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