ID Number: Q74701
3.00
WINDOWS
docerr
Summary:
SYMPTOMS
When the PeekMessage function is called with an hWnd parameter of
-1, no messages are returned by the retail version of Windows, and the
debugging version of Windows exits with fatal exit 0x0007 (Invalid
Window Handle). According to page 4-330 of the "Microsoft Windows
Software Development Kit Reference Volume 1," this call should
return only messages with an hWnd of NULL that are posted by the
PostAppMessage function.
CAUSE
Microsoft has confirmed that the documentation is incorrect. The
PeekMessage function should not be called with a hWnd parameter of
-1.
RESOLUTION
Calling PeekMessage with a hWnd parameter of NULL will retrieve
messages that were posted with the PostAppMessage function.
Microsoft has confirmed that this documentation error has been
corrected on page 739 of the "Microsoft Windows Software
Development Kit Programmer's Reference Volume 2: Functions" for
version 3.10.
Additional reference words: docerr 3.00