Fixed length buffers

[Paul]

I'm doing some Pinvoke stuff. How do I deal with functions that
pass/receive structures that have fixed length char buffers?

I see this:

public struct MyArray // This code must appear in an unsafe block
{
public fixed char pathName[128];
}

in the docs, but this is upposed to be for c#2.0. I am presuming C#2.0
is not what I am using with VS .Net circa 2003. Is that right?

Any advice much appreciated...

Paul

[Tom Shelton]

In article <11*********************@o13g2000cwo.googlegroups. com>, Paul wrote:

I'm doing some Pinvoke stuff. How do I deal with functions that
pass/receive structures that have fixed length char buffers?

I see this:

public struct MyArray // This code must appear in an unsafe block
{
public fixed char pathName[128];
}

in the docs, but this is upposed to be for c#2.0. I am presuming C#2.0
is not what I am using with VS .Net circa 2003. Is that right?

Any advice much appreciated...

Paul

// change charset to proper type for your application...
[StructLayout (LayoutKind.Sequential, CharSet=CharSet.Ansi)]
public struct MyArray
{
[MarshalAs (UnmanagedType.ByValTStr, SizeConst=128)]
public string pathName;
}

If you have a specific declaration, it would be much easier to answer :)

--
Tom Shelton [MVP]

[Tom Shelton]

In article <11*********************@o13g2000cwo.googlegroups. com>, Paul wrote:

I'm doing some Pinvoke stuff. How do I deal with functions that
pass/receive structures that have fixed length char buffers?

I see this:

public struct MyArray // This code must appear in an unsafe block
{
public fixed char pathName[128];
}

in the docs, but this is upposed to be for c#2.0. I am presuming C#2.0
is not what I am using with VS .Net circa 2003. Is that right?

Any advice much appreciated...

Paul

// change charset to proper type for your application...
[StructLayout (LayoutKind.Sequential, CharSet=CharSet.Ansi)]
public struct MyArray
{
[MarshalAs (UnmanagedType.ByValTStr, SizeConst=128)]
public string pathName;
}

If you have a specific declaration, it would be much easier to answer :)

--
Tom Shelton [MVP]

[Paul]

You da man! Works great. Thanks Tom.

[Paul]

You da man! Works great. Thanks Tom.