Re: new plugin and problem

On Sat, 22 Apr 2006 15:26:40 +0200
pierluigi petrelli <[email protected]> wrote:

> hi all , i'm a new of this ml.
> i have relased a first alpha version of a simple plugin that read from
> g4 sensor.
> url is http://g4mon.beddamatrix.net
> 
> i have a problem of refresh in my plugin area. if a window walk on my
> plugin area this part it becomes white and the refresh i very slow.
> someone have an idea?

You need to have a panel expose routine that draws your panel pixmap
to the screen.

In create_g4mon() you'll need to connect to the expose signal with
code like:

    if (first_create)
        g_signal_connect(G_OBJECT(g4mon->drawing_area), "expose_event",
                G_CALLBACK(panel_expose_event), NULL);

And you'll need to add the panel_expose_event() function:

static gint
panel_expose_event(GtkWidget *widget, GdkEventExpose *ev)
    {
    gdk_draw_drawable(widget->window,
            widget->style->fg_gc[GTK_WIDGET_STATE (widget)],
            g4mon->pixmap, ev->area.x, ev->area.y, ev->area.x, ev->area.y,
            ev->area.width, ev->area.height);
    return FALSE;
    }

I also notice in your get_cpu_fanspeed() function you return a pointer
which has been assigned to "input" which is on the stack and so can get
trashed outside of get_cpu_fanspeed().  You should declare it

    static char input[length];

to get it off the stack.

Bill

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