Help me call dll

[B3absi]

Hi,

i read the docs about how to call dll using autoit

DllCall ( "dll", "return type", "function" [, type1, param1 [, type n, param n]] )

but i couldn’t determine the mapping between autoit variables types and c++. i’m looking to call this function https://docs.microsoft.com/en-us/windows/win32/api/shobjidl_core/nf-shobjidl_core-ifileoperation-copyitem

HRESULT CopyItem(
  IShellItem                 *psiItem,
  IShellItem                 *psiDestinationFolder,
  LPCWSTR                    pszCopyName,
  IFileOperationProgressSink *pfopsItem
);

How can define these specific structs using Autoit, 

help me with this one thanks in advance.

 

 

[Nine]

You provided a link from a header, not a dll.

[B3absi]

According to stackoverflow A DLL doesn't need to export anything special to implement that interface. The registry tells the OS what DLL implements the interface. When a program calls CoCreateInstance, the OS can look up the given CLSID in the registry. The OS then loads the associated DLL and calls its DllGetClassObject function to get an IClassFactory object. The OS then uses that interface to get something that implements the requested interface.
 

where’s m i supposed to find the dll name to use that interface 😂

[LarsJ]

The DllCall() function cannot be used for interface methods. But the C++ code in the example in your link can be translated into AutoIt code. Use ObjCreateInterface() for interfaces. However, the translation is not completely trivial if you have no experience with ObjCreateInterface() and related techniques. And not at all if you have no experience with AutoIt either.

[markyrocks]

So what exactly are you trying to do?  Copy a file?😁

Edited January 9, 2020 by markyrocks

[B3absi]

10 hours ago, markyrocks said:

So what exactly are you trying to do?  Copy a file?😁

Yes using those api’s

[AdamUL]

Maybe this will help.  

 

Adam

 

[Nine]

If you want to use COM object, I suggest you use object shell.application instead of interfaces.  It will save you time and effort, and you get to have essentially the same functionality.

[markyrocks]

6 hours ago, B3absi said:

Yes using those api’s

Sometimes it's just easier to use c++ than to put a square peg in a round hole and go around in circles trying to get something to work on autoit.