268 lines
9.9 KiB
Plaintext
268 lines
9.9 KiB
Plaintext
'\"
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'\" Copyright (c) 1990 The Regents of the University of California.
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'\" All rights reserved.
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'\"
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'\" Permission is hereby granted, without written agreement and without
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'\" license or royalty fees, to use, copy, modify, and distribute this
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'\" documentation for any purpose, provided that the above copyright
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'\" notice and the following two paragraphs appear in all copies.
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'\"
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'\" IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY
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'\" FOR DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES
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'\" ARISING OUT OF THE USE OF THIS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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'\" CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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'\"
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'\" THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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'\" INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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'\" AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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'\" ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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'\" PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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'\"
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'\" $Header: /user6/ouster/wish/man/RCS/winfo.n,v 1.24 93/07/09 09:56:06 ouster Exp $ SPRITE (Berkeley)
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'/"
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.so man.macros
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.HS winfo tk
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.BS
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'\" Note: do not modify the .SH NAME line immediately below!
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.SH NAME
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winfo \- Return window-related information
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.SH SYNOPSIS
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\fBwinfo\fR \fIoption \fR?\fIarg arg ...\fR?
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.BE
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.SH DESCRIPTION
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.PP
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The \fBwinfo\fR command is used to retrieve information about windows
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managed by Tk. It can take any of a number of different forms,
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depending on the \fIoption\fR argument. The legal forms are:
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.TP
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\fBwinfo atom \fIname\fR
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.VS
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Returns a decimal string giving the integer identifier for the
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atom whose name is \fIname\fR. If no atom exists with the name
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\fIname\fR then a new one is created.
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.TP
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\fBwinfo atomname \fIid\fR
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Returns the textual name for the atom whose integer identifier is
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\fIid\fR.
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This command is the inverse of the \fBwinfo atom\fR command.
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Generates an error if no such atom exists.
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.TP
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\fBwinfo cells \fIwindow\fR
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Returns a decimal string giving the number of cells in the
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color map for \fIwindow\fR.
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.VE
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.TP
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\fBwinfo children \fIwindow\fR
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Returns a list containing the path names of all the children
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of \fIwindow\fR. Top-level windows are returned as children
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of their logical parents.
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.TP
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\fBwinfo class \fIwindow\fR
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Returns the class name for \fIwindow\fR.
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.TP
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\fBwinfo containing \fIrootX rootY\fR
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.VS
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Returns the path name for the window containing the point given
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by \fIrootX\fR and \fIrootY\fR.
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\fIRootX\fR and \fIrootY\fR are specified in screen units (i.e.
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any form acceptable to \fBTk_GetPixels\fR) in the coordinate
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system of the root window (if a virtual-root window manager is in
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use then the coordinate system of the virtual root window is used).
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If no window in this application contains the point then an empty
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string is returned.
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In selecting the containing window, children are given higher priority
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than parents and among siblings the highest one in the stacking order is
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chosen.
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.TP
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\fBwinfo depth \fIwindow\fR
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Returns a decimal string giving the depth of \fIwindow\fR (number
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of bits per pixel).
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.TP
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\fBwinfo exists \fIwindow\fR
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Returns 1 if there exists a window named \fIwindow\fR, 0 if no such
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window exists.
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.TP
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\fBwinfo fpixels \fIwindow\fR \fInumber\fR
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Returns a floating-point value giving the number of pixels
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in \fIwindow\fR corresponding to the distance given by \fInumber\fR.
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\fINumber\fR may be specified in any of the forms acceptable
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to \fBTk_GetScreenMM\fR, such as ``2.0c'' or ``1i''.
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The return value may be fractional; for an integer value, use
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\fBwinfo pixels\fR.
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.VE
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.TP
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\fBwinfo geometry \fIwindow\fR
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Returns the geometry for \fIwindow\fR, in the form
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\fIwidth\fBx\fIheight\fB+\fIx\fB+\fIy\fR. All dimensions are
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in pixels.
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.TP
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\fBwinfo height \fIwindow\fR
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Returns a decimal string giving \fIwindow\fR's height in pixels.
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When a window is first created its height will be 1 pixel; the
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height will eventually be changed by a geometry manager to fulfill
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the window's needs.
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If you need the true height immediately after creating a widget,
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invoke \fBupdate\fR to force the geometry manager to arrange it,
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or use \fBwinfo reqheight\fR to get the window's requested height
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instead of its actual height.
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.TP
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\fBwinfo id \fIwindow\fR
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Returns a hexadecimal string indicating the X identifier for \fIwindow\fR.
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.TP
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\fBwinfo interps\fR
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Returns a list whose members are the names of all Tcl interpreters
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(e.g. all Tk-based applications) currently registered for the
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display of the invoking application.
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.TP
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\fBwinfo ismapped \fIwindow\fR
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Returns \fB1\fR if \fIwindow\fR is currently mapped, \fB0\fR otherwise.
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.TP
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\fBwinfo name \fIwindow\fR
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Returns \fIwindow\fR's name (i.e. its name within its parent, as opposed
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to its full path name).
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.VS
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The command \fBwinfo name .\fR will return the name of the application.
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.VE
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.TP
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\fBwinfo parent \fIwindow\fR
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Returns the path name of \fIwindow\fR's parent, or an empty string
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if \fIwindow\fR is the main window of the application.
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.TP
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\fBwinfo pathname \fIid\fR
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Returns the path name of the window whose X identifier is \fIid\fR.
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\fIId\fR must be a decimal, hexadecimal, or octal integer and must
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correspond to a window in the invoking application.
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.TP
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\fBwinfo pixels \fIwindow\fR \fInumber\fR
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.VS
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Returns the number of pixels in \fIwindow\fR corresponding
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to the distance given by \fInumber\fR.
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\fINumber\fR may be specified in any of the forms acceptable
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to \fBTk_GetPixels\fR, such as ``2.0c'' or ``1i''.
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The result is rounded to the nearest integer value; for a
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fractional result, use \fBwinfo fpixels\fR.
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.VE
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.TP
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\fBwinfo reqheight \fIwindow\fR
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Returns a decimal string giving \fIwindow\fR's requested height,
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in pixels. This is the value used by \fIwindow\fR's geometry
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manager to compute its geometry.
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.TP
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\fBwinfo reqwidth \fIwindow\fR
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Returns a decimal string giving \fIwindow\fR's requested width,
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in pixels. This is the value used by \fIwindow\fR's geometry
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manager to compute its geometry.
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.TP
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\fBwinfo rgb \fIwindow color\fR
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.VS
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Returns a list containing three decimal values, which are the
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red, green, and blue intensities that correspond to \fIcolor\fR in
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the window given by \fIwindow\fR. \fIColor\fR
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may be specified in any of the forms acceptable for a color
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option.
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.VE
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.TP
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\fBwinfo rootx \fIwindow\fR
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Returns a decimal string giving the x-coordinate, in the root
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window of the screen, of the
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upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
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has no border).
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.TP
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\fBwinfo rooty \fIwindow\fR
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Returns a decimal string giving the y-coordinate, in the root
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window of the screen, of the
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upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
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has no border).
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.TP
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\fBwinfo screen \fIwindow\fR
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Returns the name of the screen associated with \fIwindow\fR, in
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the form \fIdisplayName\fR.\fIscreenIndex\fR.
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.TP
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\fBwinfo screencells \fIwindow\fR
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.VS
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Returns a decimal string giving the number of cells in the default
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color map for \fIwindow\fR's screen.
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.TP
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\fBwinfo screendepth \fIwindow\fR
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Returns a decimal string giving the depth of the root window
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of \fIwindow\fR's screen (number of bits per pixel).
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.TP
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\fBwinfo screenheight \fIwindow\fR
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Returns a decimal string giving the height of \fIwindow\fR's screen,
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in pixels.
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.TP
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\fBwinfo screenmmheight \fIwindow\fR
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Returns a decimal string giving the height of \fIwindow\fR's screen,
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in millimeters.
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.TP
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\fBwinfo screenmmwidth \fIwindow\fR
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Returns a decimal string giving the width of \fIwindow\fR's screen,
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in millimeters.
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.TP
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\fBwinfo screenvisual \fIwindow\fR
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Returns one of the following strings to indicate the default visual
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type for \fIwindow\fR's screen: \fBdirectcolor\fR, \fBgrayscale\fR,
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\fBpseudocolor\fR, \fBstaticcolor\fR, \fBstaticgray\fR, or
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\fBtruecolor\fR.
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.TP
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\fBwinfo screenwidth \fIwindow\fR
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Returns a decimal string giving the width of \fIwindow\fR's screen,
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in pixels.
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.TP
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\fBwinfo toplevel \fIwindow\fR
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Returns the path name of the top-level window containing \fIwindow\fR.
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.TP
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\fBwinfo visual \fIwindow\fR
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Returns one of the following strings to indicate the visual
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type for \fIwindow\fR: \fBdirectcolor\fR, \fBgrayscale\fR,
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\fBpseudocolor\fR, \fBstaticcolor\fR, \fBstaticgray\fR, or
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\fBtruecolor\fR.
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.TP
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\fBwinfo vrootheight \fIwindow\fR
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Returns the height of the virtual root window associated with \fIwindow\fR
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if there is one; otherwise returns the height of \fIwindow\fR's screen.
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.TP
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\fBwinfo vrootwidth \fIwindow\fR
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Returns the width of the virtual root window associated with \fIwindow\fR
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if there is one; otherwise returns the width of \fIwindow\fR's screen.
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.TP
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\fBwinfo vrootx \fIwindow\fR
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Returns the x-offset of the virtual root window associated with \fIwindow\fR,
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relative to the root window of its screen.
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This is normally either zero or negative.
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Returns 0 if there is no virtual root window for \fIwindow\fR.
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.TP
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\fBwinfo vrooty \fIwindow\fR
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Returns the y-offset of the virtual root window associated with \fIwindow\fR,
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relative to the root window of its screen.
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This is normally either zero or negative.
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Returns 0 if there is no virtual root window for \fIwindow\fR.
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.VE
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.TP
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\fBwinfo width \fIwindow\fR
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Returns a decimal string giving \fIwindow\fR's width in pixels.
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When a window is first created its width will be 1 pixel; the
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width will eventually be changed by a geometry manager to fulfill
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the window's needs.
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If you need the true width immediately after creating a widget,
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invoke \fBupdate\fR to force the geometry manager to arrange it,
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or use \fBwinfo reqwidth\fR to get the window's requested width
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instead of its actual width.
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.TP
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\fBwinfo x \fIwindow\fR
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Returns a decimal string giving the x-coordinate, in \fIwindow\fR's
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parent, of the
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upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
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has no border).
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.TP
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\fBwinfo y \fIwindow\fR
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Returns a decimal string giving the y-coordinate, in \fIwindow\fR's
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parent, of the
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upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
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has no border).
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.SH KEYWORDS
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atom, children, class, geometry, height, identifier, information, interpreters,
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mapped, parent, path name, screen, virtual root, width, window
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