NAME

gii_expose_event : LibGII expose events

SYNOPSIS

#include <ggi/events.h>
typedef struct gii_expose_event {


    COMMON_DATA;


    uint32_t  x,y;


    uint32_t  h,w;
} gii_expose_event;

DESCRIPTION

If an application loses the focus and is not physically displayed (e.g. console switching, iconifying), it may be stopped. Some targets may implement a backbuffer and allow continuing, though.

After reactivation, the application will receive a redraw event, evExpose.

GENERATED EVENTS

The gii_expose_event is used for the evExpose event.

STRUCTURE MEMBERS

The fields describe the region which needs to be redrawn.

EXAMPLES

evExpose handling skeleton:

ggi_visual_t vis;
ggi_event ev;
/* ... wait and get the event... */
if (ev.any.type == evExpose) {


    /* We might not be able to render partially ... */


    render_screen(vis);


              


    /* but flush only the region needed */


    ggiFlushRegion(vis, ev.expose.x, ev.expose.y,


                        ev.expose.w, ev.expose.h);
}
/* ... etc ... */

SEE ALSO

gii_event(3)