BOOL WINAPI
PtInRegion( HRGN hrgn, INT x, INT y )
{
MWRGNOBJ * obj;
obj = (MWRGNOBJ *) GDI_GetObjPtr( hrgn, OBJ_REGION );
if(!obj)
return FALSE;
return GdPtInRegion(obj->rgn, x, y);
}
/*
* Find the window which is currently visible for the specified coordinates.
* This just walks down the window tree looking for the deepest mapped
* window which contains the specified point. If the coordinates are
* off the screen, the root window is returned.
*/
GR_WINDOW *
GsFindVisibleWindow(GR_COORD x, GR_COORD y)
{
GR_WINDOW *wp; /* current window */
GR_WINDOW *retwp; /* returned window */
wp = rootwp;
retwp = wp;
while (wp) {
if (wp->realized &&
((!wp->clipregion && (wp->x <= x) && (wp->y <= y) &&
(wp->x + wp->width > x) && (wp->y + wp->height > y)) ||
(wp->clipregion && GdPtInRegion(wp->clipregion, x - wp->x, y - wp->y)))) {
retwp = wp;
wp = wp->children;
continue;
}
wp = wp->siblings;
}
return retwp;
}
