FIX: CWnd::DragAcceptFiles() in Books Online (150571)
The information in this article applies to:
- The Microsoft Foundation Classes (MFC), when used with:
- Microsoft Visual C++ 1.51
- Microsoft Visual C++ 1.52
- Microsoft Visual C++, 32-bit Enterprise Edition 5.0
- Microsoft Visual C++, 32-bit Professional Edition 2.0
- Microsoft Visual C++, 32-bit Professional Edition 2.1
- Microsoft Visual C++, 32-bit Professional Edition 2.2
- Microsoft Visual C++, 32-bit Professional Edition 4.0
- Microsoft Visual C++, 32-bit Professional Edition 4.1
- Microsoft Visual C++, 32-bit Professional Edition 5.0
- Microsoft Visual C++, 32-bit Learning Edition 4.0
This article was previously published under Q150571 SYMPTOMS
The documentation for CWnd::DragAcceptFiles() in Books Online states:
Call this member function from within the main window in your
application's CWinApp::InitInstance function to indicate that
your main window and all child windows accept dropped files from
the Windows File Manager.
This information is not correct. The message is not propagated to the child
windows.
STATUSMORE INFORMATION
Since DragAcceptFiles() is a member function of CWnd class, a CWnd pointer
is needed to call this function in CWinApp::InitInstance(). The window that
calls DragAcceptFiles() with the bAccept parameter set to TRUE has
identified itself as able to process the WM_DROPFILES message from Windows
File Manager.
For example, in an MFC MDI application, if the CMDIFrameWnd window pointer
is used in the DragAcceptFiles() function call, only the CMDIFrameWnd
window gets the WM_DROPFILES message. This message is not sent to all open
CMDIChildWnd windows. For a CMDIChildWnd window to receive this message,
you need to call DragAcceptFiles() with the CMDIChildWnd window pointer.
The correct documentation is also found in Windows API DragAcceptFiles()
function in Books Online.
| Modification Type: | Major | Last Reviewed: | 12/10/2003 |
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| Keywords: | kbBug kbDocs kbfix kbNoUpdate kbVC600fix KB150571 |
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