Blt_TreeExists

________________________________________________________________________________

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