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{ KeyInputIntf
Copyright (C) 2008 Tom Gregorovic
This source is free software; you can redistribute it and/or modify it under the terms of the
GNU General Public License as published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This code is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
A copy of the GNU General Public License is available on the World Wide Web at
<http://www.gnu.org/copyleft/gpl.html>. You can also obtain it by writing to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1335, USA.
}
unit KeyInputIntf;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Forms;
type
{ TKeyInput }
TKeyInput = class
protected
procedure DoDown(Key: Word); dynamic; abstract;
procedure DoUp(Key: Word); dynamic; abstract;
public
procedure Down(Key: Word);
procedure Up(Key: Word);
procedure Press(Key: Word);
procedure Press(StringValue : String);
procedure Apply(Shift: TShiftState);
procedure Unapply(Shift: TShiftState);
end;
implementation
uses LCLType;
{ TKeyInput }
procedure TKeyInput.Down(Key: Word);
begin
DoDown(Key);
Application.ProcessMessages;
end;
procedure TKeyInput.Up(Key: Word);
begin
DoUp(Key);
Application.ProcessMessages;
end;
procedure TKeyInput.Press(Key: Word);
begin
Down(Key);
Up(Key);
end;
procedure TKeyInput.Press(StringValue: String);
var
i : Integer;
begin
i :=1;
while (i <= Length(StringValue)) do
begin
Press(Ord(StringValue[i]));
Inc(i);
end;
end;
procedure TKeyInput.Apply(Shift: TShiftState);
begin
if ssCtrl in Shift then Down(VK_CONTROL);
if ssAlt in Shift then Down(VK_MENU);
if ssShift in Shift then Down(VK_SHIFT);
end;
procedure TKeyInput.Unapply(Shift: TShiftState);
begin
if ssShift in Shift then Up(VK_SHIFT);
if ssCtrl in Shift then Up(VK_CONTROL);
if ssAlt in Shift then Up(VK_MENU);
end;
end.
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