Hello,
I was able to call a dll function in my VB.NET code by using the syntax below:
<DllImport("hsmsw.dll", CallingConvention:=CallingConvention.Cdecl)> _
Public Shared Function HSMWorks_dummy() As Integer
End Function
A tutorial on YouTube helped me achieve it. However, HSMWorks_dummy() is only a counter, so each time I call the function, the output value increases by one. I now would like to try something more complex, e.g. the HSMWorks_getVersion function.
The text file says:
/**
Returns the version of HSMWorks running.
@param major The major version number.
@param minor The minor version number.
@param micro The micro version number.
@param build The build number.
*/
HSMWORKS_API unsigned int HSMWorks_getVersion(unsigned int* major, unsigned int* minor, unsigned int* micro, unsigned int* build);
As far as I understand, we input the pointers to the unsigned integers in C++. How am I supposed to use this in VB.NET? Here's an idea:
<DllImport("hsmsw.dll", CallingConvention:=CallingConvention.Cdecl)>
Public Shared Function HSMWorks_getVersion(ByRef major As Integer, ByRef minor As Integer, ByRef micro As Integer, ByRef build As Integer) As Integer
End Function
'To get the values, declare the parameters and call the function
Dim major2 As Int32 = 0
Dim major As UInt32 = CUInt(major2)
Dim minor2 As Int32 = 0
Dim minor As UInt32 = CUInt(minor2)
Dim micro2 As Int32 = 0
Dim micro As UInt32 = CUInt(micro2)
Dim build2 As Int32 = 0
Dim build As UInt32 = CUInt(build2)
HSMWorks_getVersion(major, minor, micro, build)
Do you think this makes sense?
Thank you,
Doga
