URGENT - How to pass a string to a DLL ??

[M.Anand]

I have written a DLL using Win32 SDK . One of the exported functions in DLL takes LPCTSTR as parameter. How do I call this from VB ? If I pass a variable of type String , it gives a "Bad DLL Calling convention" error.


Help is very much appreciated


Thanks

Anand

[hemant]

You have to pass the string to the dll ByVal So try this


Private Declare Function MyFunction_

Lib "MyDLL" Alias "MyDLLFunction" ( _

ByVal lpBuffer As String )


This should work.

[M.Anand]

Hi Hemant


I had given the same way as you had mentioned. I didn't give an alias.

I have a function named ExecuteCommand1 in my Dll . I have given it like this


Public Declare Function ExecuteCommand1_

Lib "Path of the Dll" ( _

ByVal lpBuffer As String )


It gives the same error " Bad DLL calling convention"


Anand