Hello, Read the article on MSDN: “How to Pass Arrays between Visual Basic and C”. http://support.microsoft.com/kb/207931 Some more links: 1. "Passing an array from VC++ DLL to VB", by Amol Kakhandki on Code project. http://www.codeproject.com/dll/ctovbarray\_passing.asp 2. http://www.manbu.net/Lib/En/Class5/Sub7/1/23.asp Regards

Hello, Read the article on MSDN: “How to Pass Arrays between Visual Basic and C”. http://support.microsoft.com/kb/207931 Some more links: 1. "Passing an array from VC++ DLL to VB", by Amol Kakhandki on Code project. http://www.codeproject.com/dll/ctovbarray\_passing.asp 2. http://www.manbu.net/Lib/En/Class5/Sub7/1/23.asp Regards

Hello, COM+ Programming: A Practical Guide Using Visual C++ and ATL (With CD-ROM) by Pradeep Tapadiya is much better. Regrads

Hello, Just read this book: Special Edition Using Visual C++.NET by Kate Gregory Regards,

Hello Just read this article: COM Connection Points By Alex C. Punnen. http://www.codeproject.com/com/connectionpoint.asp Regards,

Hello, You need to use BSTR instead of LPTSTR in your server. Regards

Hello, You need to use Win32 along GDI functions like this: CreateWindow() GetDC() SelectObject() GetStockObject() SetStretchBltMode() SetPixel() StretchBlt() BitBlt() … DeleteDC() DeleteObject() etc. Regards,

Hello, It's similar to pointer to pointer (char**). Regards,

Hello, Just try: NI Measurement & Automation Explorer->Devices and Interfaces->GPIB0. Now right click and choose 'Scan for Instruments' menu. Regards,

Hello, Just try: *.idl: HRESULT FunName([in,out] SAFEARRAY(BYTE)* pbtBufData); *.h : STDMETHOD(FunName)(SAFEARRAY** pbtBufData); *.c : STDMETHODIMP CClassName::FunName(SAFEARRAY** pbtBufData){...} Regards,

Hello, Just check 'DECLARE_CLASSFACTORY_SINGLETON(...)' macro on MSDN. Regards

Hello, 'COM+ Programming: A Practical Guide Using Visual C++ and ATL (With CD-ROM) by Pradeep Tapadiya' is much better. (See amazon.com) Regards

Hello, I have a COM DLL using 2D safearrays. I want to use the Interface in C# and managed C++ and need to marshall the 2D array somehow. Can anyone help me with the syntax please? Regards,

Hello, How to communicate with USB devices from VC++.NET code? Thanks for help, Regards

Hello, Your bitmaps are incompatible. Just try Bitmap.CreateCompatibleBitmap(theDC, 100, 100); instead of Bitmap.CreateBitmap(100,100,1,24,NULL); Regards,

Hello, Jus try: 1. total_grams = grams + kilograms * GRAMS_PER_KILOGRAM; 2. ounces = pounds*OUNCES_PER_POUND; 3. total_pounds = pounds + ounces/OUNCES_PER_POUND; Regards,

Hello, "COM+ Programming: A Practical Guide Using Visual C++ and ATL" by Pradeep Tapadiya is the best. Regards

Hello, 1. Have you initialized all your variables inside com server? Some memory garbage can cause the problem 2. It can be some timing problem with initialization. Try to play with some delays (just use Sleep(…)) inside constructor and FinalConstruct() method of your exe com server. Regards,

Some more links: 1. "Passing an array from VC++ DLL to VB", by Amol Kakhandki on Code project. http://www.codeproject.com/dll/ctovbarray\_passing.asp 2. http://www.manbu.net/Lib/En/Class5/Sub7/1/23.asp

Hello, Read the article on MSDN: “How to Pass Arrays between Visual Basic and C”. http://support.microsoft.com/kb/207931 Regards