Managed C++/CLI

<br />
Byte b[] = * gcnew Byte[Convert::ToInt32((dr->GetBytes(PictureCol, 0, 0,0, Int32::MaxValue)))];<br />

<br />
error C2664: '__int64 System::Data::Common::DbDataReader::GetBytes(int,__int64,cli::array<Type,dimension> ^,int,int)' : cannot convert parameter 3 from 'int' to 'cli::array<Type,dimension> ^'<br />
        with<br />
        [<br />
            Type=unsigned char,<br />
            dimension=1<br />
        ]<br />
No standard conversion exists from the boxed form of the arithmetic type to the target type<br />
error C2440: 'initializing' : cannot convert from 'unsigned char' to 'unsigned char []'<br />

First-chance exception at 0x7c812a5b in Scene Configurator.exe: 0x000006EF: A null context handle was passed from the client to the host during a remote procedure call.<br />
First-chance exception at 0x7c812a5b in Scene Configurator.exe: 0x000006A6: The binding handle is invalid.

void Draw_Grid(LPDIRECT3DDEVICE9 g_3Ddevice)<br />
{ <br />
	// Draw Grid<br />
	tVector3 vertData[2]; <br />
	const float fNear = gVar.GridNear;//-500.0f;<br />
	const float fFar = gVar.GridFar;//500.0f;<br />
	const float fStep= gVar.GridStep;<br />
<br />
	for(float i = fNear; i <= fFar; i += fStep)<br />
	{	//x direction<br />
		vertData[0] = tVector3(fNear, 0, i);    <br />
		vertData[0].color = 0xFFD9810E;<br />
		vertData[1] = tVector3( fFar, 0, i);  <br />
		vertData[1].color = 0xFFD9810E; <br />
		g_3Ddevice->DrawPrimitiveUP(D3DPT_LINELIST , 1, &vertData, sizeof( vertData[0] ) );<br />
<br />
		//z direction<br />
		vertData[0] = tVector3(i, 0,fNear);    <br />
		vertData[0].color = 0xFFD9810E;<br />
		vertData[1] = tVector3(i, 0, fFar);  <br />
		vertData[1].color = 0xFFD9810E; <br />
		g_3Ddevice->DrawPrimitiveUP(D3DPT_LINELIST , 1, &vertData, sizeof( vertData[0] ) );<br />
<br />
		// Note:<br />
		// DrawPrimitiveUP causes a C++ Exception error, for unknown reason<br />
	}<br />
}