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See the recommended documentation of this function

Aide Scilab >> Interface avec Tcl/Tk > TCL_ExistVar

TCL_ExistVar

Return %T if a tcl variable exists

Calling Sequence

OK=TCL_ExistVar(varname [,interp])

Arguments

varname

character string. Contains the name of the tcl/tk variable.

interp

optional character string parameter. Name of the slave tcl interpreter in which the operation has to be performed. If not provided, it defaults to the main tcl interpreter created by Scilab.

ok

boolean. %T if varname exists.

Description

This routine allows to test if a tcl variable exists.

More information about Tcl/Tk: http://www.tcl.tk/doc/

Examples

TCL_SetVar("Scilab","OK")
TCL_GetVar("Scilab")
TCL_UnsetVar("Scilab")
TCL_ExistVar("Scilab")
                             
TCL_SetVar("aa",1)
TCL_CreateSlave('SlaveInterp');
TCL_SetVar("aa",2,'SlaveInterp')
TCL_ExistVar("aa")
TCL_GetVar("aa")
TCL_UnsetVar("aa")
TCL_GetVar("aa",'SlaveInterp')
TCL_UnsetVar("aa",'SlaveInterp')
TCL_ExistVar("aa",'SlaveInterp')
TCL_DeleteInterp('SlaveInterp')

See Also

  • ScilabEval — tcl instruction : Evaluate a string with scilab interpreter
  • TCL_EvalFile — Reads and evaluate a tcl/tk file
  • TCL_EvalStr — Evaluate a string whithin the Tcl/Tk interpreter
  • TCL_GetVar — Get a tcl/tk variable value
  • TCL_SetVar — Set a tcl/tk variable value
  • TCL_UnsetVar — Remove a tcl variable
  • TCL_UpVar — Make a link from a tcl source variable to a tcl destination variable
  • TCL_CreateSlave — Create a TCL slave interpreter

Authors

Allan CORNET

<< TCL_ExistInterp Interface avec Tcl/Tk TCL_GetVar >>

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Last updated:
Wed Oct 05 12:11:04 CEST 2011