andres

Hi Rolf thanks for your anwser! The background of my question is, that we have actually such a COM Component integrated in our project, the imc COM Components from www.imc-berlin.de. If I understood your anwser than calling this component inside VB is faster than calling the same componet from inside LV, right? When it comes to convert the VARIANT's in LV I loose again time... a lot! :thumbdown: Is any COM Component slower inside LV than inside VB? Also if the COM Component was build with a real compiler such as Visual C? I only try to understand a little bit more about the background of the low speed for this component using LV. Andi :thumbup:

Hi I would like to pass double arrays of data from VB to LV / LV to VB. I use an ActiveX DLL created in VB. When I integrate this component into LV with automation open, the double array apears as a Variant datatype . Converting this array into a double array in LV is very slow . Using the same ActiveX component inside VB is very fast in comparison. Does anybody know why LV is so much slower handling an ActiveX Calls? Is there a faster way to pass arrays of doubles between LV and VB? Thank you for helping!