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Improve gripper dragging smoothness with immediate visual updates

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This commit is contained in:
Mark Russinovich
2026-01-31 11:31:47 -08:00
parent 0c8ba084df
commit d33d24bb7f
1 changed files with 7 additions and 2 deletions
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9
src/modules/ZoomIt/ZoomIt/VideoRecordingSession.cpp
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@@ -3299,6 +3299,7 @@ static LRESULT CALLBACK TimelineSubclassProc(
RECT clientRect{};
GetClientRect(hWnd, &clientRect);
InvalidatePlayheadRegion(hWnd, clientRect, previousPosX, newPosX, dpi);
UpdateWindow(hWnd); // Force immediate visual update for smooth dragging
pData->previewOverrideActive = false;
UpdateVideoPreview(pData->hDialog, pData, false);
break;
@@ -3346,12 +3347,16 @@ static LRESULT CALLBACK TimelineSubclassProc(
pData->previewOverride = overrideTime;
}
// Force immediate visual update of gripper for smooth dragging
InvalidateRect(hWnd, nullptr, FALSE);
UpdateWindow(hWnd);
// Request preview update asynchronously (don't block gripper movement)
if (requestPreviewUpdate)
{
UpdateVideoPreview(pData->hDialog, pData);
UpdateVideoPreview(pData->hDialog, pData, false);
}
InvalidateRect(hWnd, nullptr, FALSE);
return 0;
}