---
name: "gii_expose_event"
section: "3"
platform: "linux"
package: "libgii1"
version: "1:1.0.2-4.1"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/gii_expose_event"
---

# gii\_expose\_event(3)

LibGII expose events

## 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)`