Control.ProcessKeyMessage Method (Message)
Processes a keyboard message.
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)] [SecurityPermissionAttribute(SecurityAction.InheritanceDemand, Flags = SecurityPermissionFlag.UnmanagedCode)] protected internal virtual bool ProcessKeyMessage( ref Message m )
Return ValueType: System.Boolean
true if the message was processed by the control; otherwise, false.
This method is called when a control receives a keyboard message. The method first determines whether the control has a parent; if so, it calls the parent's ProcessKeyPreview method. If the parent's ProcessKeyPreview method does not process the message then the ProcessKeyEventArgs method is called to generate the appropriate keyboard events. The m parameter contains the window message that must be processed. Possible values for the Message.Msg property are WM_CHAR, WM_KEYDOWN, WM_SYSKEYDOWN, WM_KEYUP, and WM_SYSKEYUP.
Notes to Inheritors:
When overriding the ProcessKeyEventArgs should be returned. Controls will seldom, if ever, need to override this method.method, 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 the base class's
Available since 1.1