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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)
- '/"
- .so man.macros
- .HS winfo tk
- .BS
- '\" Note: do not modify the .SH NAME line immediately below!
- .SH NAME
- winfo \- Return window-related information
- .SH SYNOPSIS
- \fBwinfo\fR \fIoption \fR?\fIarg arg ...\fR?
- .BE
-
- .SH DESCRIPTION
- .PP
- The \fBwinfo\fR command is used to retrieve information about windows
- managed by Tk. It can take any of a number of different forms,
- depending on the \fIoption\fR argument. The legal forms are:
- .TP
- \fBwinfo atom \fIname\fR
- .VS
- Returns a decimal string giving the integer identifier for the
- atom whose name is \fIname\fR. If no atom exists with the name
- \fIname\fR then a new one is created.
- .TP
- \fBwinfo atomname \fIid\fR
- Returns the textual name for the atom whose integer identifier is
- \fIid\fR.
- This command is the inverse of the \fBwinfo atom\fR command.
- Generates an error if no such atom exists.
- .TP
- \fBwinfo cells \fIwindow\fR
- Returns a decimal string giving the number of cells in the
- color map for \fIwindow\fR.
- .VE
- .TP
- \fBwinfo children \fIwindow\fR
- Returns a list containing the path names of all the children
- of \fIwindow\fR. Top-level windows are returned as children
- of their logical parents.
- .TP
- \fBwinfo class \fIwindow\fR
- Returns the class name for \fIwindow\fR.
- .TP
- \fBwinfo containing \fIrootX rootY\fR
- .VS
- Returns the path name for the window containing the point given
- by \fIrootX\fR and \fIrootY\fR.
- \fIRootX\fR and \fIrootY\fR are specified in screen units (i.e.
- any form acceptable to \fBTk_GetPixels\fR) in the coordinate
- system of the root window (if a virtual-root window manager is in
- use then the coordinate system of the virtual root window is used).
- If no window in this application contains the point then an empty
- string is returned.
- In selecting the containing window, children are given higher priority
- than parents and among siblings the highest one in the stacking order is
- chosen.
- .TP
- \fBwinfo depth \fIwindow\fR
- Returns a decimal string giving the depth of \fIwindow\fR (number
- of bits per pixel).
- .TP
- \fBwinfo exists \fIwindow\fR
- Returns 1 if there exists a window named \fIwindow\fR, 0 if no such
- window exists.
- .TP
- \fBwinfo fpixels \fIwindow\fR \fInumber\fR
- Returns a floating-point value giving the number of pixels
- in \fIwindow\fR corresponding to the distance given by \fInumber\fR.
- \fINumber\fR may be specified in any of the forms acceptable
- to \fBTk_GetScreenMM\fR, such as ``2.0c'' or ``1i''.
- The return value may be fractional; for an integer value, use
- \fBwinfo pixels\fR.
- .VE
- .TP
- \fBwinfo geometry \fIwindow\fR
- Returns the geometry for \fIwindow\fR, in the form
- \fIwidth\fBx\fIheight\fB+\fIx\fB+\fIy\fR. All dimensions are
- in pixels.
- .TP
- \fBwinfo height \fIwindow\fR
- Returns a decimal string giving \fIwindow\fR's height in pixels.
- When a window is first created its height will be 1 pixel; the
- height will eventually be changed by a geometry manager to fulfill
- the window's needs.
- If you need the true height immediately after creating a widget,
- invoke \fBupdate\fR to force the geometry manager to arrange it,
- or use \fBwinfo reqheight\fR to get the window's requested height
- instead of its actual height.
- .TP
- \fBwinfo id \fIwindow\fR
- Returns a hexadecimal string indicating the X identifier for \fIwindow\fR.
- .TP
- \fBwinfo interps\fR
- Returns a list whose members are the names of all Tcl interpreters
- (e.g. all Tk-based applications) currently registered for the
- display of the invoking application.
- .TP
- \fBwinfo ismapped \fIwindow\fR
- Returns \fB1\fR if \fIwindow\fR is currently mapped, \fB0\fR otherwise.
- .TP
- \fBwinfo name \fIwindow\fR
- Returns \fIwindow\fR's name (i.e. its name within its parent, as opposed
- to its full path name).
- .VS
- The command \fBwinfo name .\fR will return the name of the application.
- .VE
- .TP
- \fBwinfo parent \fIwindow\fR
- Returns the path name of \fIwindow\fR's parent, or an empty string
- if \fIwindow\fR is the main window of the application.
- .TP
- \fBwinfo pathname \fIid\fR
- Returns the path name of the window whose X identifier is \fIid\fR.
- \fIId\fR must be a decimal, hexadecimal, or octal integer and must
- correspond to a window in the invoking application.
- .TP
- \fBwinfo pixels \fIwindow\fR \fInumber\fR
- .VS
- Returns the number of pixels in \fIwindow\fR corresponding
- to the distance given by \fInumber\fR.
- \fINumber\fR may be specified in any of the forms acceptable
- to \fBTk_GetPixels\fR, such as ``2.0c'' or ``1i''.
- The result is rounded to the nearest integer value; for a
- fractional result, use \fBwinfo fpixels\fR.
- .VE
- .TP
- \fBwinfo reqheight \fIwindow\fR
- Returns a decimal string giving \fIwindow\fR's requested height,
- in pixels. This is the value used by \fIwindow\fR's geometry
- manager to compute its geometry.
- .TP
- \fBwinfo reqwidth \fIwindow\fR
- Returns a decimal string giving \fIwindow\fR's requested width,
- in pixels. This is the value used by \fIwindow\fR's geometry
- manager to compute its geometry.
- .TP
- \fBwinfo rgb \fIwindow color\fR
- .VS
- Returns a list containing three decimal values, which are the
- red, green, and blue intensities that correspond to \fIcolor\fR in
- the window given by \fIwindow\fR. \fIColor\fR
- may be specified in any of the forms acceptable for a color
- option.
- .VE
- .TP
- \fBwinfo rootx \fIwindow\fR
- Returns a decimal string giving the x-coordinate, in the root
- window of the screen, of the
- upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
- has no border).
- .TP
- \fBwinfo rooty \fIwindow\fR
- Returns a decimal string giving the y-coordinate, in the root
- window of the screen, of the
- upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
- has no border).
- .TP
- \fBwinfo screen \fIwindow\fR
- Returns the name of the screen associated with \fIwindow\fR, in
- the form \fIdisplayName\fR.\fIscreenIndex\fR.
- .TP
- \fBwinfo screencells \fIwindow\fR
- .VS
- Returns a decimal string giving the number of cells in the default
- color map for \fIwindow\fR's screen.
- .TP
- \fBwinfo screendepth \fIwindow\fR
- Returns a decimal string giving the depth of the root window
- of \fIwindow\fR's screen (number of bits per pixel).
- .TP
- \fBwinfo screenheight \fIwindow\fR
- Returns a decimal string giving the height of \fIwindow\fR's screen,
- in pixels.
- .TP
- \fBwinfo screenmmheight \fIwindow\fR
- Returns a decimal string giving the height of \fIwindow\fR's screen,
- in millimeters.
- .TP
- \fBwinfo screenmmwidth \fIwindow\fR
- Returns a decimal string giving the width of \fIwindow\fR's screen,
- in millimeters.
- .TP
- \fBwinfo screenvisual \fIwindow\fR
- Returns one of the following strings to indicate the default visual
- type for \fIwindow\fR's screen: \fBdirectcolor\fR, \fBgrayscale\fR,
- \fBpseudocolor\fR, \fBstaticcolor\fR, \fBstaticgray\fR, or
- \fBtruecolor\fR.
- .TP
- \fBwinfo screenwidth \fIwindow\fR
- Returns a decimal string giving the width of \fIwindow\fR's screen,
- in pixels.
- .TP
- \fBwinfo toplevel \fIwindow\fR
- Returns the path name of the top-level window containing \fIwindow\fR.
- .TP
- \fBwinfo visual \fIwindow\fR
- Returns one of the following strings to indicate the visual
- type for \fIwindow\fR: \fBdirectcolor\fR, \fBgrayscale\fR,
- \fBpseudocolor\fR, \fBstaticcolor\fR, \fBstaticgray\fR, or
- \fBtruecolor\fR.
- .TP
- \fBwinfo vrootheight \fIwindow\fR
- Returns the height of the virtual root window associated with \fIwindow\fR
- if there is one; otherwise returns the height of \fIwindow\fR's screen.
- .TP
- \fBwinfo vrootwidth \fIwindow\fR
- Returns the width of the virtual root window associated with \fIwindow\fR
- if there is one; otherwise returns the width of \fIwindow\fR's screen.
- .TP
- \fBwinfo vrootx \fIwindow\fR
- Returns the x-offset of the virtual root window associated with \fIwindow\fR,
- relative to the root window of its screen.
- This is normally either zero or negative.
- Returns 0 if there is no virtual root window for \fIwindow\fR.
- .TP
- \fBwinfo vrooty \fIwindow\fR
- Returns the y-offset of the virtual root window associated with \fIwindow\fR,
- relative to the root window of its screen.
- This is normally either zero or negative.
- Returns 0 if there is no virtual root window for \fIwindow\fR.
- .VE
- .TP
- \fBwinfo width \fIwindow\fR
- Returns a decimal string giving \fIwindow\fR's width in pixels.
- When a window is first created its width will be 1 pixel; the
- width will eventually be changed by a geometry manager to fulfill
- the window's needs.
- If you need the true width immediately after creating a widget,
- invoke \fBupdate\fR to force the geometry manager to arrange it,
- or use \fBwinfo reqwidth\fR to get the window's requested width
- instead of its actual width.
- .TP
- \fBwinfo x \fIwindow\fR
- Returns a decimal string giving the x-coordinate, in \fIwindow\fR's
- parent, of the
- upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
- has no border).
- .TP
- \fBwinfo y \fIwindow\fR
- Returns a decimal string giving the y-coordinate, in \fIwindow\fR's
- parent, of the
- upper-left corner of \fIwindow\fR's border (or \fIwindow\fR if it
- has no border).
-
- .SH KEYWORDS
- atom, children, class, geometry, height, identifier, information, interpreters,
- mapped, parent, path name, screen, virtual root, width, window
-