is_ptr(n);
| Argument | Description |
|---|---|
| n | The argument to check. |
Returns: Boolean
This function returns whether a given variable is a pointer or
not. In some cases you want to check and see what data type a
variable holds in GameMaker: Studio and that's when you
would use this function. It returns true or false
depending on whether the value is a pointer or not. For further
information on data types see here.
if !is_ptr(val)
{
show_debug_message("Not a valid texture!");
}
The above code checks the variable "val" to see if it contains a pointer and if it is not then it shows a message in the debug console.