\fBTcl_CreateObjCommand2\fR does the same as \fBTcl_CreateObjCommand\fR,
except its \fIproc2\fR argument is of type \fBTcl_ObjCmdProc2\fR.
.PP
.CS
typedef int \fBTcl_ObjCmdProc2\fR(
        void *\fIclientData\fR,
        Tcl_Interp *\fIinterp\fR,
        ptrdiff_t \fIobjc\fR,
        Tcl_Obj *const \fIobjv\fR[]);
.CE
.PP
\fBTcl_DeleteCommand\fR deletes a command from a command interpreter.
Once the call completes, attempts to invoke \fIcmdName\fR in
\fIinterp\fR will result in errors.
If \fIcmdName\fR is not bound as a command in \fIinterp\fR then