private static HitTestFilterBehavior OnHitTestFilter(int callbacksId, IntPtr targetPtr)
{
try {
HitTestCallbackInfo info = _hitTestCallbacks[callbacksId];
return(info.Filter((Visual)Extend.GetProxy(targetPtr, false)));
}
catch (Exception e)
{
Noesis.Error.UnhandledException(e);
return(HitTestFilterBehavior.Stop);
}
}
private static HitTestResultBehavior OnHitTestResult(int callbacksId, IntPtr hitPtr)
{
try {
HitTestCallbackInfo info = _hitTestCallbacks[callbacksId];
return(info.Result(new HitTestResult(hitPtr, false)));
}
catch (Exception e)
{
Noesis.Error.UnhandledException(e);
return(HitTestResultBehavior.Stop);
}
}
public static void HitTest(Visual reference, HitTestFilterCallback filterCallback, HitTestResultCallback resultCallback, HitTestParameters hitTestParameters)
{
PointHitTestParameters pointParams = (PointHitTestParameters)hitTestParameters;
HitTestCallbackInfo info = new HitTestCallbackInfo {
Filter = filterCallback, Result = resultCallback
};
int callbacksId = info.GetHashCode();
_hitTestCallbacks[callbacksId] = info;
HitTestCallbackHelper(reference, pointParams.HitPoint, callbacksId, _hitTestFilter, _hitTestResult);
_hitTestCallbacks.Remove(callbacksId);
}