VBA happens to be the language in which Excel speaks. Just like you and I have a language, computer programs too have their own language. What is VBA? VBA stands for Visual Basic for Applications. In this section of our site, you will find information, tutorials, examples, tips & resources on Excel VBA & Macros. When we are doing all these, we spend quite some time, repeating same steps.įor example, we prepare and email same type of report every week with different data.īy using Excel VBA, we can cut down the time we spend repeating these steps and improve our productivity. We use Excel to analyze data, create reports, prepare charts & presentations, do calculations and understand information. This change must be made in addition to the four described above.Excel VBA – Information, Tutorials, Examples & ResourcesĮxcel VBA allows you to automate various activities you do in Excel. When using this library all instances of long in the declaration (so n and ifail in the example above) must use the LongLong type.
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The name of the library (after the Lib keyword) must be changed to point to the 64-bit DLL.Subroutines (and functions) must use the Ptrsafe keyword.The differences between these two interfaces are that in the 64-bit interface: The first is taken from the header files supplied with the 32-bit NAG Library and the second from those supplied with the 64-bit NAG Library.ĭeclare Sub D02BJF Lib "FLDLL244M_nag.dll" ( _īyVal relabs As string, ByVal relabsLength As long, _ĭeclare Ptrsafe Sub D02BJF Lib "FLW6I24DC_nag.dll" ( _ The two declarations below are both for the NAG Library routine D02BJF.
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However, when trying to convert code written to use the 32-bit NAG Library to call the 64-bit NAG Library it can be useful to know what the differences are. If you are writing a new set of VBA code, then the differences between the 32- and 64-bit header files are largely moot. The header files reside in either the vb6_headers or vba7-64_headers (depending on the version of the Library installed) subdirectories of the NAG Library installation directory.ĭifferences Between 32- and 64-bit Header Files You must use the correct declarations for your version of the Library and ensure that the types and order of the variables passed into the NAG Library routine match those specified in that declaration.
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In order to call the 64-bit NAG Library from Excel you need to do the following: Living, working and relocating to OxfordshireĬalling the 64-bit NAG Library from Excel.
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Fortran Library for SMP & Multicore Versions.
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