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Blt_TreeExists
Langue: en
Version: 2.4 (debian - 07/07/09)
Section: 3 (Bibliothèques de fonctions)
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_TreeReleaseTokenContenus ©2006-2024 Benjamin Poulain
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