S
NAME
Blt_TreeExists - Indicates if a tree exists.
SYNOPSIS
#include <bltTree.h>
int
Blt_TreeExists(interp, name)
ARGUMENTS
Interpreter to determine current namespace context.
Name of an existing tree data object. Can be qualified by a namespace.
E
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 CWfred::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
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