WSET Procedure

Used to select the current, or "active" window to be used by the graphics and imaging routines.

WSET, window_index

window_index The window index of the new current window.

Resize If present and nonzero, notifies PV-WAVE that a window being used to display PV-WAVE graphics (e.g., with the WINDOW command's Set_Xwin_Id or Set_Win_Id keyword) has been resized. PV-WAVE updates the window size in the !D system variable so that subsequent PV-WAVE graphics commands use the new window size.

WSET can be used only on displays with window systems.

The window-index number of the current window is given by the read-only system variable !D.Window.

On UNIX, if you are writing a PV-WAVE noninteractive application, you must use the Resize keyword in order for PV-WAVE to recognize when a user resizes a graphic window.

This example shows how the keyword Resize is used in a PV-WAVE Widgets application written in the C programming language. The cwavec function is used to call the PV-WAVE functions from the C program.

static void     resizeCB_drawingArea( widget, data, cbs )
        Widget          widget;
        XtPointer       data;
        XmDrawingAreaCallbackStruct     *cbs;
{
    int action, numcmds, istat, cwavec();
    char *cmds[2];
    if (!XtIsRealized(widget)) return;
    if (cbs-reason == XmCR_RESIZE) {
        action = 2;
        cmds[0] = 'erase';
        istat = cwavec (action, 1, cmds);
        /*
         * Update display, to solve Motif geometry changes
         * and give PV-WAVE the proper window size.
         */
        XmUpdateDisplay(widget);
        cmds[0] = 'WSET,0,/Resize';
        cmds[1] = 'SHADE_SURF, HANNING(20,20)';
istat = cwavec (action, 2, cmds);
    }
}

This example shows how the keyword Resize is used in a PV-WAVE Widgets application written in the C programming language. The wavecmds function is used to call the PV-WAVE functions from the C program.

static void     resizeCB_drawingArea( widget, data, cbs )
        Widget          widget;
        XtPointer       data;
        XmDrawingAreaCallbackStruct     *cbs;
{
    if (!XtIsRealized(widget)) return;
    if (cbs-reason == XmCR_RESIZE) {
        wavecmd('ERASE');
        /*
         * Update display, to solve Motif geometry changes
         * and give PV-WAVE the proper window size.
         */
        XmUpdateDisplay(widget);
        wavecmd('WSET,0,/Resize');
        wavecmd('SHADE_SURF, HANNING(20,20)');
    }
}

WDELETE, WINDOW, WSHOW

System Variables: !D.Window