internal static bool IsFontInUse(WindowsFont wf)
{
if (wf != null)
{
for (int i = 0; i < activeDeviceContexts.Count; i++)
{
DeviceContext context = activeDeviceContexts[i] as DeviceContext;
if ((context != null) && ((context.ActiveFont == wf) || context.IsFontOnContextStack(wf)))
{
return(true);
}
}
}
return(false);
}
