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Call PrintWindow for the first time of capturing to capture the window frames correctly.

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This will fix artifacts on the captured window frames, especially for cmd, which
sometimes leaks glimpss of other window's content.

BUG=
R=sergeyu@chromium.org

Review URL: https://webrtc-codereview.appspot.com/8989004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@5616 4adac7df-926f-26a2-2b94-8c16560cd09d
This commit is contained in:
jiayl@webrtc.org 2014-02-27 16:43:12 +00:00
parent 00073aafa8
commit f0fc72f70e
1 changed files with 4 additions and 4 deletions
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8
webrtc/modules/desktop_capture/window_capturer_win.cc
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@ -217,11 +217,11 @@ void WindowCapturerWin::Capture(const DesktopRegion& region) {
// When composition is enabled the DC returned by GetWindowDC() doesn't always
// have window frame rendered correctly. Windows renders it only once and then
// caches the result between captures. We hack it around by calling
// PrintWindow() whenever window size changes - it somehow affects what we
// get from BitBlt() on the subsequent captures.
// PrintWindow() whenever window size changes, including the first time of
// capturing - it somehow affects what we get from BitBlt() on the subsequent
// captures.
if (!IsAeroEnabled() ||
(!previous_size_.is_empty() && !previous_size_.equals(frame->size()))) {
if (!IsAeroEnabled() || !previous_size_.equals(frame->size())) {
result = PrintWindow(window_, mem_dc, 0);
}