Perl/Tk Pocket Reference

82 Perl/Tk Pocket Reference

$widget->vrootheight;

Returns the height of the virtual root window associated

with

$widget.

$widget->vrootwidth;

Returns the width of the virtual root window associated

with

$widget.

$widget->vrootx;

Returns the x-offset of the virtual root window associated

with

$widget.

$widget->vrooty;

Returns the y-offset of the virtual root window associated

with

$widget.

$widget->width;

Returns

$widget’s width in pixels.

$widget->x;

Returns x-coordinate, in

$widget’s parent, of the upper-

left corner of

$widget.

$widget->y;

Returns y-coordinate, in

$widget’s parent, of the upper-

left corner of

$widget.

14. The Window Manager

Many of the following methods have one or more optional

arguments which, when specified, set something, but

when missing, get something. The widget is typically a

MainWindow or a Toplevel.

$mw->aspect(?minNumer, minDenom, maxNumer,

maxDenom?);

Informs window manager of desired aspect ratio range for

$mw.

$mw->client(?name?);

Stores name in

$mw’s WM_CLIENT_MACHINE property.

Informs window manager of client machine on which the

application is running.

14. The Window Manager 83

$mw->colormapwindows(?windowList?);

Stores windowList in

$mw’s WM_COLORMAP_WINDOWS

property which identifies the internal windows within

$mw with private colormaps.

$mw->command(?value?);

Stores value in

$mw’s WM_COMMAND ...