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Restricts horizontal scrolling to mouse over #3953

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Merged
Keboo merged 1 commit into from
Oct 26, 2025
Merged

Restricts horizontal scrolling to mouse over #3953

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9 changes: 2 additions & 7 deletions src/MaterialDesignThemes.Wpf/ScrollViewerAssist.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -140,18 +140,13 @@ IntPtr Hook(IntPtr hwnd, int msg, IntPtr wParam, IntPtr lParam, ref bool handled
const int WM_MOUSEHWHEEL = 0x020E;
switch (msg)
{
case WM_MOUSEHWHEEL:
case WM_MOUSEHWHEEL when scrollViewer.IsMouseOver:
int tilt = (short)((wParam.ToInt64() >> 16) & 0xFFFF);
OnMouseTilt(tilt);
scrollViewer.ScrollToHorizontalOffset(scrollViewer.HorizontalOffset + tilt);
return (IntPtr)1;
}
return IntPtr.Zero;
}

void OnMouseTilt(int tilt)
{
scrollViewer.ScrollToHorizontalOffset(scrollViewer.HorizontalOffset + tilt);
}
}
}

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