2 references to OldSource
PresentationFramework (1)
System\Windows\Documents\ImmComposition.cs (1)
268
oldSource = e.
OldSource
as HwndSource;
System.Windows.Controls.Ribbon (1)
Microsoft\Windows\Controls\Ribbon\Ribbon.cs (1)
1174
if (e.
OldSource
is HwndSource &&