true if the character was processed as a mnemonic by the control; otherwise, false.
The ToolStrip.ProcessMnemonic(char) method is called to give a control the opportunity to process a mnemonic character. This method should determine whether the control is in a state to process mnemonics and whether the given character represents a mnemonic. If so, the method should perform the action associated with the mnemonic and return true. If not, the method should return false.
Implementations of this method often use the Control.IsMnemonic(char, string) method to determine whether the given character matches a mnemonic in the control's text.
This default implementation of the ToolStrip.ProcessMnemonic(char) method simply returns false, to indicate that the control has no mnemonic.