Processes a dialog key.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
[UIPermissionAttribute(SecurityAction.InheritanceDemand, Window = UIPermissionWindow.AllWindows)] [UIPermissionAttribute(SecurityAction.LinkDemand, Window = UIPermissionWindow.AllWindows)] protected virtual bool ProcessDialogKey( Keys keyData )
Return ValueType: System.Boolean
true if the key was processed by the control; otherwise, false.
This method is called during message preprocessing to handle dialog characters, such as TAB, RETURN, ESC, and arrow keys. This method is called only if the IsInputKey method indicates that the control is not processing the key. The simply sends the character to the parent's method, or returns false if the control has no parent. The Form class overrides this method to perform actual processing of dialog keys. This method is only called when the control is hosted in a Windows Forms application or as an ActiveX control.Notes to Inheritors
When overriding the method in a derived class, a control should return true to indicate that it has processed the key. For keys that are not processed by the control, the result of calling the base class's ProcessDialogChar method should be returned. Controls will seldom, if ever, need to override this method.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.