- keyData
One of the System.Windows.Forms.Keys values that represents the key to process.
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true if the key was processed by the control; otherwise, false.
This method is called during message preprocessing to handle dialog box key characters, such as TAB, LEFT ARROW, RIGHT ARROW, UP ARROW, and DOWN ARROW. Keys that include the ALT or CONTROL modifiers are not handled. This method is called only if the Control.IsInputKey(Keys) method indicates that the control is not processing the key. The Control.ProcessDialogKey(Keys) simply sends the character to the parent's Control.ProcessDialogKey(Keys) method, or returns false if the control has no parent. The System.Windows.Forms.Form class overrides this method to perform actual processing of dialog box keys. The run time calls this method only when the control is hosted in a Windows Forms application or as an ActiveX control.