gfx_event.c

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/* system events retrieving */

#include "fb_gfx.h"


/*:::::*/
FBCALL int fb_GfxEvent(EVENT *event)
{
        EVENT *e = NULL;
        
        if (!__fb_gfx)
                return FB_FALSE;
        
        EVENT_LOCK();
        if (__fb_gfx->event_head != __fb_gfx->event_tail) {
                e = &__fb_gfx->event_queue[__fb_gfx->event_head];
                if (event)
                        __fb_gfx->event_head = (__fb_gfx->event_head + 1) & (MAX_EVENTS - 1);
        }
        if (e && event)
                fb_hMemCpy(event, e, sizeof(EVENT));
        EVENT_UNLOCK();
        
        return e ? FB_TRUE : FB_FALSE;
}