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fix: schedule DWM frame extension to next render frame on Windows 10 #1087

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Merged
merged 1 commit into from
Mar 13, 2025
Merged

fix: schedule DWM frame extension to next render frame on Windows 10 #1087

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16 changes: 11 additions & 5 deletions src/Native/Windows.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@

using Avalonia;
using Avalonia.Controls;
using Avalonia.Threading;

namespace SourceGit.Native
{
Expand Down Expand Up @@ -214,12 +215,17 @@ public void OpenWithDefaultEditor(string file)

private void FixWindowFrameOnWin10(Window w)
{
var platformHandle = w.TryGetPlatformHandle();
if (platformHandle == null)
return;
// Schedule the DWM frame extension to run in the next render frame
// to ensure proper timing with the window initialization sequence
Dispatcher.UIThread.InvokeAsync(() =>
{
var platformHandle = w.TryGetPlatformHandle();
if (platformHandle == null)
return;

var margins = new MARGINS { cxLeftWidth = 1, cxRightWidth = 1, cyTopHeight = 1, cyBottomHeight = 1 };
DwmExtendFrameIntoClientArea(platformHandle.Handle, ref margins);
var margins = new MARGINS { cxLeftWidth = 1, cxRightWidth = 1, cyTopHeight = 1, cyBottomHeight = 1 };
DwmExtendFrameIntoClientArea(platformHandle.Handle, ref margins);
}, DispatcherPriority.Render);
}

#region EXTERNAL_EDITOR_FINDER
Expand Down
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