gii_expose_event — LibGII expose events
#include <ggi/events.h>
typedef struct gii_expose_event {
COMMON_DATA;
uint32 x,y;
uint32 h,w;
} gii_expose_event;
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.
The gii_expose_event is used for the evExpose event.
The fields describe the region which needs to be redrawn.
Example 2. 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 ... */