How to marshal managed array to DLL.

[Ananas]

Hi,

I'm using C# and C++ DLL. I need to send an array of unknown size at
compilation time to C++ native code. How to do this.

Example;

C#:
byte[] Image = ImageLoadFromFile(FileName); // as like the dynamic
image in the C++, for example, image loads from the file at the run
time.

C++:
void GetImage(unsigned char *Img, unsigned int size);

How to declare GetImage in C# for to recieve and read array in C++
correct?

Thanks in advise,
Eugene.

 

[Willy Denoyette [MVP]]

Hi,

I'm using C# and C++ DLL. I need to send an array of unknown size at
compilation time to C++ native code. How to do this.

Example;

C#:
byte[] Image = ImageLoadFromFile(FileName); // as like the dynamic
image in the C++, for example, image loads from the file at the run
time.

C++:
void GetImage(unsigned char *Img, unsigned int size);

How to declare GetImage in C# for to recieve and read array in C++
correct?

[DllImport("....")]
extern static void GetImage(byte[] img, int size);

Willy.

 

[Ananas]

Thanks.

"""Willy Denoyette [MVP] ÐÉÓÁÌ(Á):
"""

Hi,

I'm using C# and C++ DLL. I need to send an array of unknown size at
compilation time to C++ native code. How to do this.

Example;

C#:
byte[] Image = ImageLoadFromFile(FileName); // as like the dynamic
image in the C++, for example, image loads from the file at the run
time.

C++:
void GetImage(unsigned char *Img, unsigned int size);

How to declare GetImage in C# for to recieve and read array in C++
correct?

[DllImport("....")]
extern static void GetImage(byte[] img, int size);

Willy.