Visual Basic 6 Headers for the NAG C Library Mark 9

The information here is applicable to the DLLs supplied with CLW3209DAL.

Support files for Visual Basic 6 (VB6) and Visual Basic for Applications (VBA) may be found in this zip file. These files can be used in both VB6 (and earlier) and VBA (32-bit) code. Separate Visual Basic .NET headers are available.

For each NAG C Library chapter letter there is a file called clvb6-<chapter letter>.bas which contains the VB declarations of the C functions from all the chapters beginning with this letter. For example, clvb6-e.bas contains the declarations of all the functions from chapters e01, e02, e04 and e05. There is also a corresponding set of files called clvb6-<chapter letter>-long.bas using NAG C Library long names. The supplied files also contain commented out skeletons for call-back functions. All Enum and Type declarations necessary for the parameters (mandatory and optional) can be found in the file clvb6-types.bas. The file clvb6-utilities.bas contains declarations of the Windows kernel function RtlMoveMemory and its aliases. This function is used to copy memory between C pointers and VB variables or arrays. clvb6-*.bas files can be imported into your VB project.

The header files are based on the stand-alone version of the NAG C Library DLL (CLW3209DA_nag.dll); to specify the version of the DLL which uses the MKL BLAS/LAPACK instead (CLW3209DA_mkl.dll), replace CLW3209DA_nag.dll by CLW3209DA_mkl.dll in the Function and Sub declarations.

See the pages on using the NAG C DLLs from Visual Basic 6 and Excel for information on how to use these headers.

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