public static void CreateLayer(string layer_name)
{
PSX.CheckStringContents(layer_name);
// Desc2
var Desc2 = PSX.MakeNewDescriptor();
Desc2.PutString((int)con.phKeyName, layer_name);
// Ref1
var Ref1 = PSX.MakeNewReference();
Ref1.PutClass((int)con.phClassLayer);
// Desc1
var Desc1 = PSX.MakeNewDescriptor();
Desc1.PutReference((int)con.phKeyNull, Ref1);
Desc1.PutBoolean(PSX.StrToID("below"), PSX.FALSE);
Desc1.PutObject((int)con.phKeyUsing, (int)con.phClassLayer, Desc2);
int old_layer_count = LayerAPI.GetLayerCount(-1);
// Play the event in photoshop
PSX.PlayEvent((int)con.phEventMake, Desc1, (int)con.phDialogSilent, PSX.PlayBehavior.checkresult);
LayerAPI.CheckLayerCount(-1, old_layer_count + 1);
}