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DLL function parameters

Good-day,

I am attempting to load and run a function from a DLL using LoadLibrary and GetProcAddress. I am able to find out the name of the functions within the DLL using Dependency Walker; but I am unable to find out the number of parameters and the type of parameters that each functions takes (ie float, UINT…). How would I find out this info?

Thanks.

jkr

>>but I am unable to find out the number of parameters and the type of parameters
>>that each functions takes (ie float, UINT…). How would I find out this info?

Without a header file or any kind of documentation, there is hardly any chance to find out what arguments the functions take. Bad luck :-(

Member_2_1001466

Depends on whether the DLL as C++ mangled names. But if the function name has C++ mangling dependency walker will show you the function parameters automatically unless you see only the mangled name. Try hitting the C++ button. Otherwise accept jkr comment, no other chance.

jkr

>>But if the function name has C++ mangling dependency walker will show you the function parameters

Only for simple data types. Sth. like

struct TheHellOfALotData {

// content goes here

};

int foo ( TheHellOfALotData*);

it'll come up with 'a pointer' at best...

PastorDwayne

ASKER

Alright; Assuming one of the parameters is an array, how could this be passed to GetProcAddress? For an UINT I use

typedef UINT (CALLBACK* LPFNDLLFUNC1)(UINT);

What would the typedef be for an array on integers? Would a pointer have to be passed instead?

ASKER CERTIFIED SOLUTION

jkr

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PastorDwayne

ASKER

Thanks for your time.