Excel Add-in Development in C/C++: Applications in ... - F9

viiiContents4.11 Accessing DLL functions from VB 924.12 Accessing DLL functions from Excel 945 Turning DLLs into XLLs: The Add-in Manager Interface 955.1 Adding the Excel library and header files to a DLL project 955.2 What does the Add-in Manager do? 955.2.1 Loading and unloading installed add-ins 955.2.2 Active and inactive add-ins 965.2.3 Deleted add-ins and loading of inactivate add-ins 965.3 Creating an XLL: The xlAuto interface functions 965.4 When and in what order does Excel call the XLL interfacefunctions? 975.5 XLL functions called by the Add-in Manager and Excel 985.5.1 xlAutoOpen 985.5.2 xlAutoClose 995.5.3 xlAutoAdd 995.5.4 xlAutoRemove 1005.5.5 xlAddInManagerInfo 1015.5.6 xlAutoRegister 1025.5.7 xlAutoFree 1036 Passing Data between Excel and the DLL 1056.1 Handling Excel’s internal data structures: C or C++? 1056.2 How Excel exchanges worksheet data with DLL add-in functions 1056.2.1 Native C/C++ data types 1066.2.2 Excel floating-point array structure: xl_array 1076.2.3 The xloper structure 1116.2.4 The xlref structure 1186.2.5 The xlmref structure 1186.2.6 The oper structure 1196.3 Defining constant xlopers 1216.4 A C++ class wrapper for the xloper – cpp_xloper 1216.5 Converting between xlopers and C/C++ data types 1266.6 Converting between xloper types 1266.7 Converting between xlopers and Variants 1276.8 Detailed discussion of xloper types 1306.8.1 Freeing xloper memory 1316.8.2 Worksheet (floating point) number: xltypeNum 1326.8.3 Byte-counted string: xltypeStr 1356.8.4 Excel Boolean: xltypeBool 1386.8.5 Worksheet error value: xltypeErr 1406.8.6 Excel internal integer: xltypeInt 1426.8.7 Array (mixed type): xltypeMulti 1456.8.8 Worksheet cell/range reference: xltypeRef andxltypeSRef 1506.8.9 Empty worksheet cell: xltypeNil 1556.8.10 Worksheet binary name: xltypeBigData 157