Re: Wrapping Callback Functions

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  • Posted by irv Oct 31, 2020
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You can save some grief if you assign a type for the callbacks, so that you get notified when you try to look up an invalid c routine, otherwise, you have to check each one to see if it succeeds. Something like this, off the top of my head: 

type handle(integer x) 
return x > -1 
end type 
 
handle xNewtonAllocMemory = define_c_func(dll,"+NewtonAllocMemory",{C_INT},C_POINTER) 
 
handle xNewtonFreeMemory = define_c_proc(dll,"+NewtonFreeMemory",{C_POINTER,C_INT})
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