[comp.os.os2.programmer] WinQueryUpdateRect Question

jwh@bodwin.ifs.umich.edu (Jim Howe) (01/09/91)

I am working with Smalltalk V/PM and I am trying to use the
WinQueryUpdateRect function.  Unfortunately the function always
seems to return false, indicating that the function did not
complete properly.  Can someone tell me under what circumstances
a call to the WinQueryUpdateRect function will return false?
An e-mail response is preferable.  Thanks.

James W. Howe			   internet: jwh@ifs.umich.edu
University of Michigan             uucp:     uunet!mailrus!ifs.umich.edu!jwh
Ann Arbor, MI   48103-4943