This property should be set when performing GUI operations in event handlers.
If this property is set, messages will be pumped through a call to System.Windows.Forms.Application.DoEvents.
Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2