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Annotation of researchv9/jtools/man/man3/button.3, revision 1.1

1.1     ! root        1: .TH BUTTON 3
        !             2: .CT 2 comm_term
        !             3: .SH NAME
        !             4: button123, mouse, cursallow, cursinhibit, cursset, cursswitch, getrect123 \- mouse control
        !             5: .SH SYNOPSIS
        !             6: .B #include <jerq.h>
        !             7: .PP
        !             8: .B extern struct Mouse {
        !             9: .br
        !            10: .B "    Point xy;
        !            11: .br
        !            12: .B "    short buttons;
        !            13: .br
        !            14: .B } mouse;
        !            15: .PP
        !            16: .B int button(n)
        !            17: .B int n;
        !            18: .br
        !            19: .B int button1(), button2(), button3();
        !            20: .br
        !            21: .B int button12(), button23(), button123();
        !            22: .PP
        !            23: .B void cursinhibit();
        !            24: .br
        !            25: .B void cursallow();
        !            26: .PP
        !            27: .B void cursset(p);
        !            28: .B Point p;
        !            29: .PP
        !            30: .B Cursor *cursswitch(t);
        !            31: .B Cursor *t;
        !            32: .PP
        !            33: .B Rectangle getrect(n)
        !            34: .B int n;
        !            35: .br
        !            36: .B Rectangle getrect1(), getrect2(), getrect3();
        !            37: .br
        !            38: .B Rectangle getrect12(), getrect23(), getrect123();
        !            39: .SH DESCRIPTION
        !            40: The mouse state is kept in the structure
        !            41: .BR mouse .
        !            42: Updates are hidden in routines that handle input such
        !            43: as
        !            44: .BR wait ,
        !            45: .BR nap ,
        !            46: and
        !            47: .BR sleep .
        !            48: The coordinates of the mouse are held in
        !            49: .BR mouse.xy ,
        !            50: and the state of the buttons in
        !            51: .BR mouse.buttons .
        !            52: .PP
        !            53: The macro
        !            54: .I button
        !            55: and its counterparts return the state of the associated mouse button:
        !            56: non-zero if the button is depressed, 0 otherwise.
        !            57: The buttons are numbered 1 to 3 from left to right.
        !            58: .I Button12
        !            59: and the other multi-button functions return the
        !            60: OR
        !            61: of their states: true if either button 1 or
        !            62: button 2 is depressed.
        !            63: .PP
        !            64: .I Cursinhibit
        !            65: and
        !            66: .I cursallow
        !            67: are null routines in the emulator library.
        !            68: On the 5620,
        !            69: .I cursinhibit
        !            70: turns off interrupt-time cursor tracking
        !            71: (the drawing of the cursor on the screen) ,
        !            72: although the mouse coordinates are still kept current
        !            73: and available.
        !            74: .I Cursallow
        !            75: enables interrupt-time cursor tracking.
        !            76: .PP
        !            77: .I Cursset
        !            78: moves the mouse cursor to the Point
        !            79: .I p.
        !            80: .PP
        !            81: .I Cursswitch
        !            82: changes the mouse cursor (a 16\(mu16 pixel image) to that specified by the
        !            83: Cursor
        !            84: .BI * t.
        !            85: If the argument is
        !            86: .BR (Cursor*)0 ,
        !            87: the cursor is restored to the default arrow.
        !            88: .I Cursswitch
        !            89: returns the previous value of the cursor: the argument of the previous
        !            90: call to
        !            91: .I cursswitch.
        !            92: .PP
        !            93: .I Getrect
        !            94: prompts the user with a box cursor and waits for a
        !            95: rectangle to be swept out with the named button,
        !            96: identified as with the
        !            97: .I button
        !            98: primitives.
        !            99: It returns the screen coordinates of the box swept.
        !           100: The box may be partly or wholly outside the process's layer.

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