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{ WinMouseInput
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 WinMouseInput;
{$mode objfpc}{$H+}
interface
uses
Classes, SysUtils, Controls, Forms,
Windows, JwaWinUser,
MouseInputIntf;
type
{ TWinMouseInput }
TWinMouseInput = class(TMouseInput)
protected
procedure DoDown(Button: TMouseButton); override;
procedure DoMove(ScreenX, ScreenY: Integer); override;
procedure DoUp(Button: TMouseButton); override;
procedure DoScrollUp; override;
procedure DoScrollDown; override;
end;
function InitializeMouseInput: TMouseInput;
implementation
function InitializeMouseInput: TMouseInput;
begin
Result := TWinMouseInput.Create;
end;
procedure SendMouseInput(Flag: DWORD; MouseData: DWORD = 0);
var
Input: TInput;
begin
{$IFDEF VER2_6}
FillChar(Input, SizeOf(Input), 0);
{$ELSE}
Input := Default(TInput);
{$ENDIF}
Input.mi.mouseData := MouseData;
Input.type_ := INPUT_MOUSE;
Input.mi.dwFlags := Flag;
SendInput(1, @Input, SizeOf(Input));
end;
procedure SendMouseInput(Flag: DWORD; X, Y: Integer);
var
Input: TInput;
begin
{$IFDEF VER2_6}
FillChar(Input, SizeOf(Input), 0);
{$ELSE}
Input := Default(TInput);
{$ENDIF}
Input.type_ := INPUT_MOUSE;
Input.mi.dx := MulDiv(X, 65535, Screen.Width - 1); // screen horizontal coordinates: 0 - 65535
Input.mi.dy := MulDiv(Y, 65535, Screen.Height - 1); // screen vertical coordinates: 0 - 65535
Input.mi.dwFlags := Flag or MOUSEEVENTF_ABSOLUTE;
SendInput(1, @Input, SizeOf(Input));
end;
{ TWinMouseInput }
procedure TWinMouseInput.DoDown(Button: TMouseButton);
var
Flag: DWORD;
begin
case Button of
mbRight: Flag := MOUSEEVENTF_RIGHTDOWN;
mbMiddle: Flag := MOUSEEVENTF_MIDDLEDOWN;
else
Flag := MOUSEEVENTF_LEFTDOWN;
end;
SendMouseInput(Flag);
end;
procedure TWinMouseInput.DoMove(ScreenX, ScreenY: Integer);
begin
SendMouseInput(MOUSEEVENTF_MOVE, ScreenX, ScreenY);
end;
procedure TWinMouseInput.DoUp(Button: TMouseButton);
var
Flag: DWORD;
begin
case Button of
mbRight: Flag := MOUSEEVENTF_RIGHTUP;
mbMiddle: Flag := MOUSEEVENTF_MIDDLEUP;
else
Flag := MOUSEEVENTF_LEFTUP;
end;
SendMouseInput(Flag);
end;
procedure TWinMouseInput.DoScrollUp;
begin
SendMouseInput(MOUSEEVENTF_WHEEL, WHEEL_DELTA);
end;
procedure TWinMouseInput.DoScrollDown;
begin
SendMouseInput(MOUSEEVENTF_WHEEL, DWORD(-WHEEL_DELTA));
end;
end.
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