TCL_ExistVar - Return %T if a tcl variable exists

Calling Sequence

OK=TCL_ExistVar(varname [,interp])

Parameters

• 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.

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_EvalFile,  TCL_EvalStr,  TCL_GetVar,  TCL_SetVar,  TCL_UnsetVar,  TCL_UpVar,  TCL_CreateSlave,  

Author

Allan CORNET