Calling external dll files from Dynamics AX

Hi, everybody!

In Microsoft Dynamics AX, we can call an external dll file from x++ code.

In this example, we will use the Beep function of kernel32.dll. This function needs two parameters:

BOOL Beep(DWORD dwFreq,DWORD dwDuration);

The AX Code is

static void DASExtDLL(Args _args)

{

    DLL         winApiDLL           = new DLL('kernel32');

    DLLFunction Function            = new DLLFunction(winApiDLL,'Beep');

    Function.arg(extTypes::DWord,extTypes::DWord);

    Function.call(400,1000);

}