#include <stdio.h>
#include <Xm/Command.h>

#include <stdio.h>
#include <Tt/tt_c.h>

Widget          topLevel;
XtAppContext    appContext;
Display         *display;

void CmdCB         (Widget, XtPointer, XtPointer);
int  Register      ();
void ToolTalkCB    (Widget, XtPointer, XtPointer);
int  ToolTalkAbort (char *, Tt_status);

void main (argc, argv)
        int     argc;
        char    *argv[];
{
        Widget  cmd;
        int     ttfd;

        topLevel = XtVaAppInitialize(
                &appContext,
                "TtChmodd",
                NULL, 0,
                &argc, argv,
                NULL,
                NULL);

        cmd = XtVaCreateManagedWidget(
                "command",
                xmCommandWidgetClass,
                topLevel,
                NULL);

        XtAddCallback(cmd, XmNcommandEnteredCallback, CmdCB, NULL);

        ttfd = Register();

        XtAppAddInput(appContext, ttfd, (XtPointer)XtInputReadMask,
                ToolTalkCB, cmd);

        XtRealizeWidget(topLevel);

        XtAppMainLoop(appContext);

        tt_close();
}

void CmdCB (w, clientData, callData)
Widget          w;              /*  widget id           */
XtPointer       clientData;     /*  data from application   */
XtPointer       callData;       /*  data from widget class  */
{
        XmCommandCallbackStruct *cbs = (XmCommandCallbackStruct *) callData;
        char *cmd;

        XmStringGetLtoR(cbs->value, XmSTRING_DEFAULT_CHARSET, &cmd);

        printf("CmdCB(): %s\n", cmd);
}

@fig:Listing 2. Ttchmodd: command widget