Currently, the implementation simply calls the click event handler. The implementation is custom and can be overriden for each component via the ITMSFNCShortCutHint interface.
ITMSFNCShortCutHint = interface
['{A3E21A73-163A-4617-841B-8E0A62BF41B0}']
function HasShortCut(AShortCut: string): Boolean;
function HandleShortCut(AShortCut: string): Boolean;
function GetShortCutHint: string;
function IsShortCutHintActive: Boolean;
procedure ShowShortCutHint;
procedure CancelShortCutHint(AClearShortCutHintString: Boolean = True);
procedure SetShortCutHint(const Value: string);
property ShortCutHint: string read GetShortCutHint write SetShortCutHint;
end;