Pass Bitmap object to unmanaged code

Question

I have the following function in C++ managed (ref) class:

public static void Transform(Bitmap^ img);

I want to call it from C# managed code. What I do is this:

Bitmap image = new Bitmap(100, 100);
MyClass.Transform(image);

Is this correct, or do I need to use fixed statement? If so, then how?

Thank you.

voted for close due to duplicate: stackoverflow.com/questions/661016/… — Davy Landman
– Davy Landman, Commented Aug 10, 2009 at 7:53

Eric J. · Accepted Answer · 2009-08-10 06:39:36Z

1

You need to lock the bitmap's backing memory as shown here.

answered Aug 10, 2009 at 6:39

Eric J.

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