layer_get_script_end

This function returns the script function index of the function assigned to run at the end of rendering the given layer, or it will return -1 if no function is assigned. You supply the layer ID (which you get when you create the layer using layer_create()) or the layer name (as a string - this will have a performance impact). You can assign script functions to a layer with layer_script_begin() and layer_script_end().

Syntax:

layer_get_script_end(layer_id);

Returns:

Script Function Index (Real) or -1 if no script is assigned

Example:

if layer_get_script_end(layer) == -1
   {
   layer_script_end(layer, scr_ResetShaderValues);
   }

The above code will check to see if the layer that the instance running the code has a script function assigned to it and if it doesn't one is assigned.