/// <devdoc>
/// WindowsGraphicsCacheManager needs to track DeviceContext
/// objects so it can ask them if a font is in use before they
/// it's deleted.
internal static void AddDeviceContext(DeviceContext dc) {
if (activeDeviceContexts == null) {
activeDeviceContexts = new ClientUtils.WeakRefCollection();
activeDeviceContexts.RefCheckThreshold = 20; // See DevDiv#82664 (the repro app attached to this bug was used to determine this number).
}
if (!activeDeviceContexts.Contains(dc)) {
dc.Disposing += new EventHandler(OnDcDisposing);
activeDeviceContexts.Add(dc);
}
}
/// <summary>
/// WindowsGraphicsCacheManager needs to track DeviceContext objects so it can ask them if a font is in use
/// before they it's deleted.
/// </summary>
internal static void AddDeviceContext(DeviceContext dc)
{
ClientUtils.WeakRefCollection wrc = t_activeDeviceContexts ??= new ClientUtils.WeakRefCollection()
{
RefCheckThreshold = 20
};
if (!wrc.Contains(dc))
{
dc.Disposing += new EventHandler(OnDcDisposing);
wrc.Add(dc);
}
}
/// <devdoc>
/// WindowsGraphicsCacheManager needs to track DeviceContext
/// objects so it can ask them if a font is in use before they
/// it's deleted.
internal static void AddDeviceContext(DeviceContext dc)
{
if (t_activeDeviceContexts == null)
{
t_activeDeviceContexts = new ClientUtils.WeakRefCollection();
t_activeDeviceContexts.RefCheckThreshold = 20;
}
if (!t_activeDeviceContexts.Contains(dc))
{
dc.Disposing += new EventHandler(OnDcDisposing);
t_activeDeviceContexts.Add(dc);
}
}
/// <devdoc>
/// WindowsGraphicsCacheManager needs to track DeviceContext
/// objects so it can ask them if a font is in use before they
/// it's deleted.
internal static void AddDeviceContext(DeviceContext dc)
{
if (activeDeviceContexts == null)
{
activeDeviceContexts = new ClientUtils.WeakRefCollection();
activeDeviceContexts.RefCheckThreshold = 20; // See DevDiv#82664 (the repro app attached to this
}
if (!activeDeviceContexts.Contains(dc))
{
dc.Disposing += new EventHandler(OnDcDisposing);
activeDeviceContexts.Add(dc);
}
}
