'\"
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'\"
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'\" Copyright (c) 1990-1993 The Regents of the University of California.
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'\" Copyright (c) 1990-1993 The Regents of the University of California.
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'\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
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'\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
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'\"
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'\"
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'\" See the file "license.terms" for information on usage and redistribution
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'\" See the file "license.terms" for information on usage and redistribution
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
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'\"
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'\"
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'\" RCS: @(#) $Id: WindowId.3,v 1.1.1.1 2002-01-16 10:25:48 markom Exp $
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'\" RCS: @(#) $Id: WindowId.3,v 1.1.1.1 2002-01-16 10:25:48 markom Exp $
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'\"
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'\"
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.so man.macros
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.so man.macros
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.TH Tk_WindowId 3 "" Tk "Tk Library Procedures"
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.TH Tk_WindowId 3 "" Tk "Tk Library Procedures"
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.BS
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.BS
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.SH NAME
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.SH NAME
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Tk_WindowId, Tk_Parent, Tk_Display, Tk_DisplayName, Tk_ScreenNumber, Tk_Screen, Tk_X, Tk_Y, Tk_Width, Tk_Height, Tk_Changes, Tk_Attributes, Tk_IsMapped, Tk_IsTopLevel, Tk_ReqWidth, Tk_ReqHeight, Tk_InternalBorderWidth, Tk_Visual, Tk_Depth, Tk_Colormap \- retrieve information from Tk's local data structure
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Tk_WindowId, Tk_Parent, Tk_Display, Tk_DisplayName, Tk_ScreenNumber, Tk_Screen, Tk_X, Tk_Y, Tk_Width, Tk_Height, Tk_Changes, Tk_Attributes, Tk_IsMapped, Tk_IsTopLevel, Tk_ReqWidth, Tk_ReqHeight, Tk_InternalBorderWidth, Tk_Visual, Tk_Depth, Tk_Colormap \- retrieve information from Tk's local data structure
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.SH SYNOPSIS
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.SH SYNOPSIS
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.nf
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.nf
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\fB#include \fR
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\fB#include \fR
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.sp
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.sp
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Window
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Window
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\fBTk_WindowId\fR(\fItkwin\fR)
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\fBTk_WindowId\fR(\fItkwin\fR)
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.sp
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.sp
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Tk_Window
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Tk_Window
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\fBTk_Parent\fR(\fItkwin\fR)
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\fBTk_Parent\fR(\fItkwin\fR)
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.sp
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.sp
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Display *
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Display *
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\fBTk_Display\fR(\fItkwin\fR)
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\fBTk_Display\fR(\fItkwin\fR)
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.sp
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.sp
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char *
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char *
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\fBTk_DisplayName\fR(\fItkwin\fR)
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\fBTk_DisplayName\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_ScreenNumber\fR(\fItkwin\fR)
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\fBTk_ScreenNumber\fR(\fItkwin\fR)
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.sp
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.sp
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Screen *
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Screen *
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\fBTk_Screen\fR(\fItkwin\fR)
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\fBTk_Screen\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_X\fR(\fItkwin\fR)
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\fBTk_X\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_Y\fR(\fItkwin\fR)
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\fBTk_Y\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_Width\fR(\fItkwin\fR)
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\fBTk_Width\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_Height\fR(\fItkwin\fR)
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\fBTk_Height\fR(\fItkwin\fR)
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.sp
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.sp
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XWindowChanges *
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XWindowChanges *
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\fBTk_Changes\fR(\fItkwin\fR)
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\fBTk_Changes\fR(\fItkwin\fR)
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.sp
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.sp
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XSetWindowAttributes *
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XSetWindowAttributes *
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\fBTk_Attributes\fR(\fItkwin\fR)
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\fBTk_Attributes\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_IsMapped\fR(\fItkwin\fR)
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\fBTk_IsMapped\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_IsTopLevel\fR(\fItkwin\fR)
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\fBTk_IsTopLevel\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_ReqWidth\fR(\fItkwin\fR)
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\fBTk_ReqWidth\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_ReqHeight\fR(\fItkwin\fR)
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\fBTk_ReqHeight\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_InternalBorderWidth\fR(\fItkwin\fR)
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\fBTk_InternalBorderWidth\fR(\fItkwin\fR)
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.sp
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.sp
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Visual *
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Visual *
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\fBTk_Visual\fR(\fItkwin\fR)
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\fBTk_Visual\fR(\fItkwin\fR)
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.sp
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.sp
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int
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int
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\fBTk_Depth\fR(\fItkwin\fR)
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\fBTk_Depth\fR(\fItkwin\fR)
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.sp
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.sp
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Colormap
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Colormap
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\fBTk_Colormap\fR(\fItkwin\fR)
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\fBTk_Colormap\fR(\fItkwin\fR)
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.SH ARGUMENTS
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.SH ARGUMENTS
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.AS Tk_Window tkwin
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.AS Tk_Window tkwin
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.AP Tk_Window tkwin in
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.AP Tk_Window tkwin in
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Token for window.
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Token for window.
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.BE
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.BE
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.SH DESCRIPTION
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.SH DESCRIPTION
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.PP
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.PP
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\fBTk_WindowID\fR and the other names listed above are
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\fBTk_WindowID\fR and the other names listed above are
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all macros that return fields from Tk's local data structure
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all macros that return fields from Tk's local data structure
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for \fItkwin\fR. None of these macros requires any
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for \fItkwin\fR. None of these macros requires any
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interaction with the server; it is safe to assume that
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interaction with the server; it is safe to assume that
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all are fast.
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all are fast.
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.PP
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.PP
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\fBTk_WindowId\fR returns the X identifier for \fItkwin\fR,
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\fBTk_WindowId\fR returns the X identifier for \fItkwin\fR,
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or \fBNULL\fR if no X window has been created for \fItkwin\fR
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or \fBNULL\fR if no X window has been created for \fItkwin\fR
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yet.
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yet.
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.PP
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.PP
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\fBTk_Parent\fR returns Tk's token for the logical parent of
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\fBTk_Parent\fR returns Tk's token for the logical parent of
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\fItkwin\fR. The parent is the token that was specified when
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\fItkwin\fR. The parent is the token that was specified when
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\fItkwin\fR was created, or NULL for main windows.
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\fItkwin\fR was created, or NULL for main windows.
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.PP
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.PP
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\fBTk_Display\fR returns a pointer to the Xlib display structure
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\fBTk_Display\fR returns a pointer to the Xlib display structure
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corresponding to \fItkwin\fR. \fBTk_DisplayName\fR returns an
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corresponding to \fItkwin\fR. \fBTk_DisplayName\fR returns an
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ASCII string identifying \fItkwin\fR's display. \fBTk_ScreenNumber\fR
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ASCII string identifying \fItkwin\fR's display. \fBTk_ScreenNumber\fR
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returns the index of \fItkwin\fR's screen among all the screens
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returns the index of \fItkwin\fR's screen among all the screens
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of \fItkwin\fR's display. \fBTk_Screen\fR returns a pointer to
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of \fItkwin\fR's display. \fBTk_Screen\fR returns a pointer to
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the Xlib structure corresponding to \fItkwin\fR's screen.
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the Xlib structure corresponding to \fItkwin\fR's screen.
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.PP
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.PP
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\fBTk_X\fR, \fBTk_Y\fR, \fBTk_Width\fR, and \fBTk_Height\fR
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\fBTk_X\fR, \fBTk_Y\fR, \fBTk_Width\fR, and \fBTk_Height\fR
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return information about \fItkwin's\fR location within its
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return information about \fItkwin's\fR location within its
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parent and its size. The location information refers to the
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parent and its size. The location information refers to the
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upper-left pixel in the window, or its border if there is one.
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upper-left pixel in the window, or its border if there is one.
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The width and height information refers to the interior size
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The width and height information refers to the interior size
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of the window, not including any border. \fBTk_Changes\fR
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of the window, not including any border. \fBTk_Changes\fR
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returns a pointer to a structure containing all of the above
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returns a pointer to a structure containing all of the above
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information plus a few other fields. \fBTk_Attributes\fR
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information plus a few other fields. \fBTk_Attributes\fR
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returns a pointer to an XSetWindowAttributes structure describing
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returns a pointer to an XSetWindowAttributes structure describing
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all of the attributes of the \fItkwin\fR's window, such as background
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all of the attributes of the \fItkwin\fR's window, such as background
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pixmap, event mask, and so on (Tk keeps track of all this information
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pixmap, event mask, and so on (Tk keeps track of all this information
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as it is changed by the application). Note: it is essential that
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as it is changed by the application). Note: it is essential that
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applications use Tk procedures like \fBTk_ResizeWindow\fR instead
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applications use Tk procedures like \fBTk_ResizeWindow\fR instead
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of X procedures like \fBXResizeWindow\fR, so that Tk can keep its
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of X procedures like \fBXResizeWindow\fR, so that Tk can keep its
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data structures up-to-date.
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data structures up-to-date.
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.PP
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.PP
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\fBTk_IsMapped\fR returns a non-zero value if \fItkwin\fR
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\fBTk_IsMapped\fR returns a non-zero value if \fItkwin\fR
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is mapped and zero if \fItkwin\fR isn't mapped.
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is mapped and zero if \fItkwin\fR isn't mapped.
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.PP
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.PP
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\fBTk_IsTopLevel\fR returns a non-zero value if \fItkwin\fR
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\fBTk_IsTopLevel\fR returns a non-zero value if \fItkwin\fR
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is a top-level window (its X parent is the root window of the
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is a top-level window (its X parent is the root window of the
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screen) and zero if \fItkwin\fR isn't a top-level window.
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screen) and zero if \fItkwin\fR isn't a top-level window.
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.PP
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.PP
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\fBTk_ReqWidth\fR and \fBTk_ReqHeight\fR return information about
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\fBTk_ReqWidth\fR and \fBTk_ReqHeight\fR return information about
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the window's requested size. These values correspond to the last
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the window's requested size. These values correspond to the last
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call to \fBTk_GeometryRequest\fR for \fItkwin\fR.
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call to \fBTk_GeometryRequest\fR for \fItkwin\fR.
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.PP
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.PP
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\fBTk_InternalBorderWidth\fR returns the width of internal border
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\fBTk_InternalBorderWidth\fR returns the width of internal border
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that has been requested for \fItkwin\fR, or 0 if no internal border
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that has been requested for \fItkwin\fR, or 0 if no internal border
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was requested. The return value is simply the last value passed
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was requested. The return value is simply the last value passed
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to \fBTk_SetInternalBorder\fR for \fItkwin\fR.
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to \fBTk_SetInternalBorder\fR for \fItkwin\fR.
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.PP
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.PP
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\fBTk_Visual\fR, \fBTk_Depth\fR, and \fBTk_Colormap\fR return
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\fBTk_Visual\fR, \fBTk_Depth\fR, and \fBTk_Colormap\fR return
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information about the visual characteristics of a window.
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information about the visual characteristics of a window.
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\fBTk_Visual\fR returns the visual type for
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\fBTk_Visual\fR returns the visual type for
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the window, \fBTk_Depth\fR returns the number of bits per pixel,
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the window, \fBTk_Depth\fR returns the number of bits per pixel,
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and \fBTk_Colormap\fR returns the current
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and \fBTk_Colormap\fR returns the current
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colormap for the window. The visual characteristics are
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colormap for the window. The visual characteristics are
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normally set from the defaults for the window's screen, but
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normally set from the defaults for the window's screen, but
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they may be overridden by calling \fBTk_SetWindowVisual\fR.
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they may be overridden by calling \fBTk_SetWindowVisual\fR.
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.SH KEYWORDS
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.SH KEYWORDS
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attributes, colormap, depth, display, height, geometry manager,
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attributes, colormap, depth, display, height, geometry manager,
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identifier, mapped, requested size, screen, top-level,
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identifier, mapped, requested size, screen, top-level,
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visual, width, window, x, y
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visual, width, window, x, y
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