WINAPI CALL

[Qindong Zhang]

I have a API function which declared in VC++ like this:

DLLimport BOOL WINAPI bl_HERA16_SetPlayBuffer(int iChannel,BYTE
**bpBuffer);

How could I declare and call this function in C#. I have problem on
second parameter.

Thks

[Nicholas Paldino [.NET/C# MVP]]

Qindong Zhang,

The declaration should be as follows:

[DllImport("mydll.dll")]
public static extern bool bl_HERA16_SetPlayBuffer(
int iChannel,
IntPtr bpBuffer);

You are going to have to marshal the reference to the byte pointer
yourself, depending on what is being passed in. Is it a two-dimensional
array? Or is it a pointer to an array? Or is it a double pointer to a
single byte?
--
- Nicholas Paldino [.NET/C# MVP]
- mv*@spam.guard.caspershouse.com

"Qindong Zhang" <qi***********@hotmail.com> wrote in message
news:7a**************************@posting.google.c om...

I have a API function which declared in VC++ like this:

DLLimport BOOL WINAPI bl_HERA16_SetPlayBuffer(int iChannel,BYTE
**bpBuffer);

How could I declare and call this function in C#. I have problem on
second parameter.

Thks