ToolStripItem::Invalidate Method (Rectangle)
.NET Framework (current version)
Invalidates the specified region of the ToolStripItem by adding it to the update region of the ToolStripItem, which is the area that will be repainted at the next paint operation, and causes a paint message to be sent to the ToolStripItem.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
.NET Framework
Available since 2.0
Available since 2.0
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