C#

Rectangle pixRect;
BitmapData pixData;
Bitmap pixBitmap;

Color[] myCols;
ColorPalette myPal;   // This is the problem.

unsafe
{
    myPal = new ColorPalette();

    pixBitmap = new Bitmap(50, 20, PixelFormat.Format8bppIndexed);

    pixBitmap.Palette = myPal;    // This line shows a warning and crashes at this line at runtime.
    myCols = myPal.Entries;
    pictureBox1.Image = pixBitmap;

    pixRect = new Rectangle(0, 0, pixBitmap.Width, pixBitmap.Height);
              
    myCols[0] = Color.FromArgb(255, 0, 255);   // Just a test, don't know if this works or not.
}

//C# Usage
private _ICommonEnv m_oCommonEnvCOM;

m_oCommonEnvCOM = new clsCommonEnvClass();

// Later I pass this to a VB6 object method that expects the ICommonEnv interface
// VB6 method signature:
// Public Function Init(ByRef oCommonEnv As ICommonEnv) As Long

Int32 lRet = someVB6COMObject.Init(ref m_oCommonEnvCOM)

TCPConnection myConnection; //This is instantiated earlier, don't worry about how it's done.

FramingEngine frameEngine = new FramingEngine();
MessagingEngine messageEngine = new MessagingEngine();

myConnection.DataReceived += new TCPConnection.DataReceivedDelegate(frameEngine.DecodeIncomingData);
frameEngine.MessageReceived += new FramingEngine.FrameReceivedDelegate(messageEngine.HandleMessage);

messageEngine.SendMessage += new MessagingEngine.SendMessageDelegate(frameEngine.EncodeOutgoingData);
frameEngine.MessageFramed += new FramingEngine.MessageFramedDelegate(myConnection.SendData)