Marshal Error

[Tibby]

Here's the C prototype:

int* CHARtoINT(char* input)

and here's my VB.NET decleration:

<DllImport("DGRE.dll")> _
Public Shared Function CHARtoINT(ByVal input As String) As
Integer()
End Function

I get the error "Can not marshal return value", so, I'm at a loss.

Thanks,
Tibby

[Patrick Steele [MVP]]

In article <kd********************************@4ax.com>,
ti***@tiberiansun.us says...

Here's the C prototype:

int* CHARtoINT(char* input)

and here's my VB.NET decleration:

<DllImport("DGRE.dll")> _
Public Shared Function CHARtoINT(ByVal input As String) As
Integer()
End Function

If the function is returning an address, try defining it as "IntPtr":

Public Shared Function CHARtoINT(ByVal input As String) As IntPtr

--
Patrick Steele
Microsoft .NET MVP
http://weblogs.asp.net/psteele

[Tibby]

On Tue, 22 Jun 2004 12:24:16 -0400, Patrick Steele [MVP]
<pa*****@mvps.org> wrote:

In article <kd********************************@4ax.com>,
ti***@tiberiansun.us says...

Here's the C prototype:

int* CHARtoINT(char* input)

and here's my VB.NET decleration:

<DllImport("DGRE.dll")> _
Public Shared Function CHARtoINT(ByVal input As String) As
Integer()
End Function

If the function is returning an address, try defining it as "IntPtr":

Public Shared Function CHARtoINT(ByVal input As String) As IntPtr

In retrospect, it's a mute point because I need it to return String()
to vb, so I have to go and learn some more C++ now.

Thanks again Patrick,
Tibby