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avfilter/vsrc_gfxcapture: MapWindowPoints can return 0 and still succeed

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This commit is contained in:
Timo Rothenpieler
2025-09-14 20:46:29 +02:00
parent d74d3080ff
commit 570949822b
1 changed files with 2 additions and 1 deletions
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3
libavfilter/vsrc_gfxcapture_winrt.cpp
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@@ -264,7 +264,8 @@ static int wgc_calculate_client_area(AVFilterContext *avctx)
return AVERROR_EXTERNAL;
}
if (!MapWindowPoints(ctx->capture_hwnd, nullptr, (POINT*)&client_rect, 2)) {
SetLastError(0);
if (!MapWindowPoints(ctx->capture_hwnd, nullptr, (POINT*)&client_rect, 2) && GetLastError()) {
av_log(avctx, AV_LOG_ERROR, "MapWindowPoints failed\n");
return AVERROR_EXTERNAL;
}