Tcl 9.0/Tk9.0 Documentation > Tcl C API, version 9.0.0 > RecEvalObj

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NAME

Tcl_RecordAndEvalObj — save command on history list before evaluating

SYNOPSIS

#include <tcl.h>

int

Tcl_RecordAndEvalObj(interp, cmdPtr, flags)

ARGUMENTS

DESCRIPTION

REFERENCE COUNT MANAGEMENT

SEE ALSO

KEYWORDS

NAME

Tcl_RecordAndEvalObj — save command on history list before evaluating

SYNOPSIS

#include <tcl.h>
int
Tcl_RecordAndEvalObj(interp, cmdPtr, flags)

ARGUMENTS

Tcl_Interp *interp (in)

Tcl interpreter in which to evaluate command.

Tcl_Obj *cmdPtr (in)

Points to a Tcl value containing a command (or sequence of commands) to execute.

int flags (in)

An OR'ed combination of flag bits. TCL_NO_EVAL means record the command but do not evaluate it. TCL_EVAL_GLOBAL means evaluate the command at global level instead of the current stack level.

DESCRIPTION

Tcl_RecordAndEvalObj is invoked to record a command as an event on the history list and then execute it using Tcl_EvalObjEx. It returns a completion code such as TCL_OK just like Tcl_EvalObjEx, as well as a result value containing additional information (a result value or error message) that can be retrieved using Tcl_GetObjResult. If you do not want the command recorded on the history list then you should invoke Tcl_EvalObjEx instead of Tcl_RecordAndEvalObj. Normally Tcl_RecordAndEvalObj is only called with top-level commands typed by the user, since the purpose of history is to allow the user to re-issue recently invoked commands. If the flags argument contains the TCL_NO_EVAL bit then the command is recorded without being evaluated.

REFERENCE COUNT MANAGEMENT

The reference count of the cmdPtr argument to Tcl_RecordAndEvalObj must be at least 1. This function will modify the interpreter result; do not use an existing result as cmdPtr directly without incrementing its reference count.

SEE ALSO

Tcl_EvalObjEx, Tcl_GetObjResult

KEYWORDS

command, event, execute, history, interpreter, value, record