🚀 go-pugleaf

Hi,

Can somebody out there please point me out explicitly the way to create a
Pop-up window in which an application can display images and handles input
with the XVIEW toolkit?

I have developed a simple program to create a Pop-up frame and its canvas
child in which a line will be drawn. However, I can't get what I want.


Any pointer will be greatly appreciated.   Thanks in advance.

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#include <X11/Xlib.h>
#include <xview/xview.h>
#include <xview/canvas.h>
#include <xview/xv_xrect.h>
#include <xview/panel.h>


Frame frame;     /* top level application base-frame */
Frame subframe;  /* subframe (FRAME_CMD) is a child of frame */

void canvas_repaint_proc(Canvas, Xv_Window, Display*, Window, Xv_xrectlist*);

main(int argc, char **argv)
{
    xv_init(XV_INIT_ARGC_PTR_ARGV, &argc, argv, NULL);

    /* Create base frame */
    frame = (Frame)xv_create(NULL, FRAME,
        FRAME_LABEL, argv[0],
        NULL);

    /* Create the command frame -- not displayed until XV_SHOW is set */
    subframe = (Frame)xv_create(frame, FRAME_CMD,
        FRAME_LABEL,         "Popup",
        NULL);

    (void) xv_create(subframe, CANVAS,
        CANVAS_REPAINT_PROC,    canvas_repaint_proc,
        CANVAS_X_PAINT_WINDOW,  TRUE,
        NULL);

    xv_set(subframe, XV_SHOW, TRUE, NULL);

    xv_main_loop(frame);
}

void
canvas_repaint_proc(Canvas canvas, Xv_Window paint_window,
                    Display *dpy,  Window xwin, Xv_xrectlist *xrects)
{
    GC gc;
    int width, height;

    gc = DefaultGC(dpy, DefaultScreen(dpy));
    width = (int)xv_get(paint_window, XV_WIDTH);
    height = (int)xv_get(paint_window, XV_HEIGHT);

    XDrawLine(dpy, xwin, gc, 0, 0, width, height);
}




-- 
C M CHAN         cmchan@dcs.warwick.ac.uk