gii_expose_event(3)

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)

libgii-1.0.x 2006-12-30 gii_expose_event(3)