Ticket History #5680: NIM: BUG: APP: WM_PAINT messages received without update regions results in incorrect window repainting behavior

It is possible to receive a WM_PAINT message in Windows without there
being an update region. For example, this can be caused by someone
calling RedrawWindow() with the RDW_INTERNALPAINT flag set. In this
case, GetUpdateRect() will indicate that there is no update region and
calling BeginPaint()/EndPaint() results in incorrect behavior.

The credentials window in Network Identity Manager needs to perform
special handling for this case by obtaining a proper device context
and completing the drawing operation.

Commit By: jaltman



Revision: 19859
Changed Files:
U trunk/src/windows/identity/ui/credwnd.c

pull up r19859 from trunk

r19859@cathode-dark-space: jaltman | 2007-08-24 10:37:07 -0400
ticket: new
subject: NIM: Handle WM_PAINT messages without update regions
component: windows

It is possible to receive a WM_PAINT message in Windows without there
being an update region. For example, this can be caused by someone
calling RedrawWindow() with the RDW_INTERNALPAINT flag set. In this
case, GetUpdateRect() will indicate that there is no update region and
calling BeginPaint()/EndPaint() results in incorrect behavior.

The credentials window in Network Identity Manager needs to perform
special handling for this case by obtaining a proper device context
and completing the drawing operation.



Commit By: tlyu



Revision: 19994
Changed Files:
_U branches/krb5-1-6/
U branches/krb5-1-6/src/windows/identity/ui/credwnd.c