This function will attempt to convert a given value into a pointer data type, where the value must be either a real, a string, an int64, an int32, or a ptr. Anything else will cause the game to crash with an error message.
Argument Description n The value to convert.
val = ptr(application_surface);
The above code checks the variable "val" to see if it contains a pointer and if it does not then one is assigned to it.