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Blt_TreeExists

Blt_TreeExists

Section: BLT Library Procedures (3) Updated: 2.4
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NAME

Blt_TreeExists - Indicates if a tree exists.  

SYNOPSIS

#include <bltTree.h>

int 
Blt_TreeExists(interp, name)
 

ARGUMENTS

Tcl_Interp    *interp    (in)
Interpreter to determine current namespace context.
const char    *name    (in)
Name of an existing tree data object. Can be qualified by a namespace.



 

DESCRIPTION

This procedure determines if a C-based tree data object exists by a given name. The arguments are as follows:

interp
Used the determine the current namespace context.
name
Name of an existing tree data object. Name can be qualified by a namespace such as fred::myTree. If no namespace qualifier is used, the current namespace is searched, then the global namespace.

 

RETURNS

A boolean result is returned. If the tree exists 1 is returned, 0 otherwise.  

EXAMPLE

The following example checks if a tree "myTree" exists.


if (!Blt_TreeExists(interp, "myTree")) {
    fprintf(stderr, "can't find tree \"myTree\\n");
}

 

KEYWORDS

tree, token Tcl_TreeCreate, Tcl_TreeGetToken, Tcl_TreeReleaseToken
 

Index

NAME
SYNOPSIS
ARGUMENTS
DESCRIPTION
RETURNS
EXAMPLE
KEYWORDS

This document was created by man2html, using the manual pages.
Time: 21:42:42 GMT, April 16, 2011