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TCL_GetVar

Get a tcl/tk variable value

Syntax

value=TCL_GetVar(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.

value

may be a character string or a strings matrix. Contains the value of the tcl/tk variable varname in the interpreter interp.

Description

When tcl/tk support is enabled in Scilab, this routine can be used to retrieve the value of a tcl/tk variable.

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

Examples

TCL_EvalStr("toplevel .tst1");

// creates a toplevel TK window.
TCL_EvalStr("entry .tst1.e -textvariable tvar");

// create an editable entry
TCL_EvalStr("set tvar foobar");

// set the entry value
TCL_EvalStr("pack .tst1.e");

// pack the entry widget. It appears on the screen.
text=TCL_GetVar("tvar")

// retrieve the variable value
// change the entry text and repeat the last command ...
//delete the toplevel TK window.
TCL_EvalStr("destroy .tst1")

//----------------------------------------------------
a=["A","B","C";"D","E","F"];
TCL_SetVar("A",a)
AfromTCL=TCL_GetVar("A")

//----------------------------------------------------
b=[6,4,1;2,3,5];
TCL_SetVar("B",b)
BfromTCL=TCL_GetVar("B")

//----------------------------------------------------
TCL_SetVar("StringTCL","string")
StringFromTCL=TCL_GetVar("StringTCL")

//----------------------------------------------------
TCL_SetVar("ScalarTCL",1.22)
ScalarFromTCL=TCL_GetVar("ScalarTCL")

//----------------------------------------------------
// Examples with a slave interpreter
//----------------------------------------------------
a=['AA','BB','CC';'DD','EE','FF'];
TCL_CreateSlave('SlaveInterp')
TCL_SetVar("A_slave",a,'SlaveInterp')
AfromTCL_slave=TCL_GetVar('A_slave','SlaveInterp')
TCL_DeleteInterp('SlaveInterp')

//----------------------------------------------------
b=[66,44,11;22,33,55];
TCL_CreateSlave('SlaveInterp1')
TCL_SetVar("B_slave",b,'SlaveInterp1')
BfromTCL_slave=TCL_GetVar('B_slave','SlaveInterp1')
TCL_DeleteInterp('SlaveInterp1')

//----------------------------------------------------
TCL_CreateSlave('SlaveInterp2')
TCL_SetVar("StringTCL_slave","string in slave interpreter",'SlaveInterp2')
StringFromTCL_slave=TCL_GetVar("StringTCL_slave",'SlaveInterp2')
TCL_DeleteInterp('SlaveInterp2')

//----------------------------------------------------
TCL_CreateSlave('SlaveInterp3')
TCL_SetVar("ScalarTCL_slave",1.22,'SlaveInterp3')
ScalarFromTCL_slave=TCL_GetVar("ScalarTCL_slave",'SlaveInterp3')
TCL_DeleteInterp('SlaveInterp3')

See also

Report an issue
<< TCL_ExistVar Tcl/Tk TCL_GetVersion >>

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Last updated:
Thu Oct 24 11:16:04 CEST 2024