Anders Hesselbom

Stealing keys

2011-08-25

Events and everything you might need to develop a user control, will tell you about mouse and keyboard activity so that you can respond the user correctly. If you want to be able to catch arrow keys or tab, you must overload this function:

Protected Overrides Function ProcessCmdKey(ByRef msg
   As System.Windows.Forms.Message, ByVal keyData
   As System.Windows.Forms.Keys) As Boolean

This method gets called no matter what key is pressed. Also, if you act on the key, and don’t want the original functionality, make the function return True. If you want the framework to act on the key press, make the function return False.

Categories: VB.NET