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-'\"
-'\" Copyright (c) 1998-2000 by Scriptics Corporation.
-'\" All rights reserved.
-'\" 
-.TH Tk_Grab 3 "" Tk "Tk Library Procedures"
-.so man.macros
-.BS
-.SH NAME
-Tk_Grab, Tk_Ungrab \- manipulate grab state in an application
-.SH SYNOPSIS
-.nf
-\fB#include <tk.h>\fR
-.sp
-int
-\fBTk_Grab\fR(\fIinterp, tkwin, grabGlobal\fR)
-.sp
-void
-\fBTk_Ungrab\fR(\fItkwin\fR)
-.SH ARGUMENTS
-.AP Tcl_Interp *interp in
-Interpreter to use for error reporting
-.AP Tk_Window tkwin in
-Window on whose behalf the pointer is to be grabbed or released
-.AP int grabGlobal in
-Boolean indicating whether the grab is global or application local
-.BE
-.SH DESCRIPTION
-.PP
-These functions are used to set or release a global or
-application local grab.  When a grab is set on a particular window
-in a Tk application, mouse and keyboard events can only be received by
-that window and its descendants.  Mouse and keyboard events for
-windows outside the tree rooted at \fItkwin\fR will be redirected to
-\fItkwin\fR.  If the grab is global, then all mouse and keyboard
-events for windows outside the tree rooted at \fItkwin\fR (even those
-intended for windows in other applications) will be redirected to
-\fItkwin\fR.  If the grab is application local, only mouse and
-keyboard events intended for a windows within the same application
-(but outside the tree rooted at \fItkwin\fR) will be redirected.
-.PP
-\fBTk_Grab\fR sets a grab on a particular window.  \fITkwin\fR
-specifies the window on whose behalf the pointer is to be grabbed.
-\fIGrabGlobal\fR indicates whether the grab should be global or
-application local; if it is non-zero, it means the grab should be
-global.  Normally, \fBTk_Grab\fR returns \fBTCL_OK\fR; if an error occurs
-and the grab cannot be set, \fBTCL_ERROR\fR is returned and an error message
-is left if \fIinterp\fR's result.  Once this call completes
-successfully, no window outside the tree rooted at \fItkwin\fR will
-receive pointer- or keyboard-related events until the next call to
-Tk_Ungrab.  If a previous grab was in effect within the application,
-then it is replaced with a new one.
-.PP
-\fBTk_Ungrab\fR releases a grab on the mouse pointer and keyboard, if
-there is one set on the window given by \fItkwin\fR.  Once a grab is
-released, pointer and keyboard events will start being delivered to
-other windows again.
-.SH KEYWORDS
-grab, window