Import C DLL functions into VB

[yvanovic]

Hello

I have a question and hope you might help me, I am writing a DLL for software package and I was also exporting the dll' function to a Visual Basic Application, my question is: in VB when you are import the DLL functions there is a way of doing it which is :

Code:

Private Declare Function Calculate Lib "C:\Project.dll" (ByVal c As Double, ByVal d As Long) As Double

And if you have a second function to import you have to do the same, but what about if you have like 50 functions to export, do you still write 50 lines and each time specifying the DLL path? Or there is another way where you just define the path only once,

Thanks in advance for any help

[debasisdas]

1.Compile the dll
2.Copy the DLL to system32 folder.
3.Regeister with windows using REGSVR32 key.
4.Access the DLL from Vb from Project-------> References
5.Use that in VB.

[yvanovic]

Thanks Debasisdas

i did copy the dll in the System32 folder and when i want to register with REGSVR32 key

eg: c:\>regsvr32 myProject.dll

this error msg occurs

" The module ""myProject.dll"" was loaded but the entry-point DllUnregisterServer was not found.
Make sure that ""myProject.dll"" is a valid DLL or OCX file and then try again

Thanks for you help