Call the Control.IsInputChar(char) method during window-message preprocessing to determine whether the specified key is a regular input key that should be sent directly to the System.Windows.Forms.ToolStripItem or a special key (such as PAGE UP, PAGE DOWN, ENTER, ESC, TAB, or arrow keys) that should be preprocessed. In the latter case, the key is sent to the System.Windows.Forms.ToolStripItem only if it is not consumed by the preprocessing phase.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 2.0.0.0
Since: .NET 2.0