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398 lines
9.1 KiB
ObjectPascal
398 lines
9.1 KiB
ObjectPascal
{
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$Id$
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This file is part of the Free Pascal run time library.
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Copyright (c) 1999-2000 by the Free Pascal development team
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Mouse unit for microsoft mouse compatible drivers
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See the file COPYING.FPC, included in this distribution,
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for details about the copyright.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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**********************************************************************
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}
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Unit MSMouse;
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Interface
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{
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Mouse support functions and procedures, with error checking: if mouse
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isn't present then the routine ends. If you want to remove error checking,
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remove the next define.
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}
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{$DEFINE MOUSECHECK}
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{initializes the mouse with the default values for the current screen mode}
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Function InitMouse:Boolean;
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{shows mouse pointer,text+graphics screen support}
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Procedure ShowMouse;
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{hides mouse pointer}
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Procedure HideMouse;
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{reads mouse position in pixels (divide by 8 to get text position in standard
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text mode) and reads the buttons state:
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bit 1 set -> left button pressed
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bit 2 set -> right button pressed
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bit 3 set -> middle button pressed
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Have a look at the example program in the manual to see how you can use this}
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Procedure GetMouseState(var x,y, buttons :Longint);
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{returns true if the left button is pressed}
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Function LPressed:Boolean;
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{returns true if the right button is pressed}
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Function RPressed:Boolean;
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{returns true if the middle button is pressed}
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Function MPressed:Boolean;
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{positions the mouse pointer}
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Procedure SetMousePos(x,y:Longint);
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{returns at which position "button" was last pressed in x,y and returns the
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number of times this button has been pressed since the last time this
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function was called with "button" as parameter. For button you can use the
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LButton, RButton and MButton constants for resp. the left, right and middle
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button}
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Function GetLastButtonPress(button:Longint;var x,y:Longint): Longint;
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{returns at which position "button" was last released in x,y and returns the
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number of times this button has been re since the last time. For button
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you can use the LButton, RButton and MButton constants for resp. the left,
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right and middle button}
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Function GetLastButtonRelease (button : Longint; var x,y:Longint): Longint;
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{sets mouse's x range, with Min and Max resp. the higest and the lowest
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column (in pixels) in between which the mouse cursor can move}
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Procedure SetMouseXRange (Min,Max:Longint);
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{sets mouse's y range, with Min and Max resp. the higest and the lowest
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row (in pixels) in between which the mouse cursor can move}
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Procedure SetMouseYRange (Min,Max:Longint);
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{set the window coordinates in which the mouse cursor can move}
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Procedure SetMouseWindow(x1,y1,x2,y2:Longint);
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{sets the mouse shape in text mode: background and foreground color and the
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Ascii value with which the character on screen is XOR'ed when the cursor
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moves over it. Set to 0 for a "transparent" cursor}
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Procedure SetMouseShape(ForeColor,BackColor,Ascii:Byte);
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{sets the mouse ascii in text mode. The difference between this one and
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SetMouseShape, is that the foreground and background colors stay the same
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and that the Ascii code you enter is the character that you will get on
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screen; there's no XOR'ing}
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Procedure SetMouseAscii(Ascii:Byte);
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{set mouse speed in mickey's/pixel; default: horizontal: 8; vertical: 16}
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Procedure SetMouseSpeed(Horizontal ,Vertical:Longint);
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{set a rectangle on screen that mouse will disappear if it is moved into}
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Procedure SetMouseHideWindow(x1,y1,x2,y2:Longint);
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Const LButton = 1; {left button}
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RButton = 2; {right button}
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MButton = 4; {middle button}
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Var
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MouseFound: Boolean;
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Implementation
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{$asmmode ATT}
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Function InitMouse: Boolean;
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begin
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asm
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xorl %eax,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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cmpw $0xffff,%ax
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setz %al
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movb %al,__RESULT
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end;
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end;
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Procedure ShowMouse;
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $1,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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end;
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Procedure HideMouse;
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $2,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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end;
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Procedure GetMouseState(var x,y,buttons:Longint);
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $3,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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andl $0xffff,%ecx
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andl $0xffff,%edx
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movl x,%eax
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movl %ecx,(%eax)
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movl y,%eax
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movl %edx,(%eax)
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movl buttons,%eax
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movw %bx,(%eax)
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end;
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end;
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Function LPressed:Boolean;
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $3,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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movl %ebx,%eax
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andl $1,%eax
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movb %al,__RESULT
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end;
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end;
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Function RPressed:Boolean;
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $3,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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movl %ebx,%eax
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shrl $1,%eax
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andl $1,%eax
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movb %al,__RESULT
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end;
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end;
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Function MPressed:Boolean;
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $3,%eax
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pushl %ebp
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int $0x33
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popl %ebp
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movl %ebx,%eax
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shrl $2,%eax
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andl $1,%eax
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movb %al,__RESULT
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end;
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end;
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Procedure SetMousePos(x,y:Longint);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $4,%eax
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movl x,%ecx
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movl y,%edx
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pushl %ebp
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int $0x33
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popl %ebp
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End;
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End;
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Function GetLastButtonPress(Button: Longint;var x,y:Longint):Longint;
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $5,%eax
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movl button,%ebx
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shrl $1, %ebx {0 = left, 1 = right, 2 = middle}
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pushl %ebp
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int $0x33
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popl %ebp
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andl $0xffff,%ebx
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andl $0xffff,%edx
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andl $0xffff,%ecx
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movl %ebx, __RESULT
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movl x,%eax
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movl %ecx,(%eax)
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movl y,%eax
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movl %edx,(%eax)
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end;
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end;
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Function GetLastButtonRelease (button : Longint; var x,y:Longint): Longint;
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $6,%eax
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movl button,%ebx
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shrl $1, %ebx {0 = left, 1 = right, 2 = middle}
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pushl %ebp
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int $0x33
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popl %ebp
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andl $0xffff,%ebx
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andl $0xffff,%ecx
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andl $0xffff,%edx
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movl %ebx,__RESULT
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movl x,%eax
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movl %ecx,(%eax)
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movl y,%eax
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movl %edx,(%eax)
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end;
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end;
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Procedure SetMouseXRange (Min,Max:Longint);
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $7,%eax
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movl min,%ecx
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movl max,%edx
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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end;
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Procedure SetMouseYRange (min,max:Longint);
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begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $8,%eax
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movl min,%ecx
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movl max,%edx
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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end;
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Procedure SetMouseWindow(x1,y1,x2,y2:Longint);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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SetMouseXRange(x1,x2);
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SetMouseYRange(y1,y2);
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End;
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Procedure SetMouseShape(ForeColor,BackColor,Ascii:Byte);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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xorl %ebx,%ebx
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movl $0xa,%eax
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movl $0xffff,%ecx
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xorl %edx,%edx
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movb BackColor,%dh
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shlb $4,%dh
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addb ForeColor,%dh
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movb Ascii,%dl
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pushl %ebp
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int $0x33
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popl %ebp
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End;
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End;
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Procedure SetMouseAscii(Ascii:byte);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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xorl %ebx,%ebx
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movl $0xa,%eax
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movl $0xff00,%ecx
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xorl %edx,%edx
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movb Ascii,%dl
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pushl %ebp
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int $0x33
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popl %ebp
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End;
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End;
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Procedure SetMouseHideWindow(x1,y1,x2,y2:Longint);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $0x0010,%eax
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movl x1,%ecx
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movl y1,%edx
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movl x2,%esi
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movl y2,%edi
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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End;
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Procedure SetMouseSpeed(Horizontal,Vertical:Longint);
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Begin
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{$IFDEF MOUSECHECK}
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If (Not MouseFound) Then Exit;
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{$ENDIF}
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asm
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movl $0x0f,%eax
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movl Horizontal,%ecx
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movl Vertical,%edx
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pushl %ebp
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int $0x33
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popl %ebp
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end;
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End;
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Begin
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MouseFound := InitMouse;
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End.
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{
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$Log$
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Revision 1.2 2000-07-13 11:33:40 michael
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+ removed logs
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}
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