tree 8bd9ba987817bfc3446694a8dd6a2ff6e1c60ddc
parent 16189c64291556aa495ee77ac479354e4e6bee1e
author Bryan Ferguson <bryanf@microsoft.com> 1575511589 -0800
committer Commit Bot <commit-bot@chromium.org> 1575573183 +0000

Avoid capturing system UI over selected window

This change avoids inadvertent capture of certain system windows (e.g.
the Start menu, other taskbar menus, and notification toasts) when
capturing a specific window on Windows.

It stops using EnumWindows for detection of overlapping windows, because
this API excludes these system windows from its enumeration. Using
FindWindowEx instead enumerates these windows.

The enumeration logic is refactored somewhat because a callback is no
longer necessary.

Bug: webrtc:10835
Change-Id: I1cccd44d6ef07f13a68e8daf2d2573d422001201
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/161153
Reviewed-by: Jamie Walch <jamiewalch@chromium.org>
Commit-Queue: Jamie Walch <jamiewalch@chromium.org>
Cr-Commit-Position: refs/heads/master@{#30022}