public void Dispose()
{
if (allocated)
{
IntPtr[] infPtrs = new IntPtr[1];
IntPtr mem;
// alloc unmanaged memory
mem = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(Win32.AVICOMPRESSOPTIONS)));
infPtrs[0] = mem;
// copy from managed structure to unmanaged memory
Marshal.StructureToPtr(comprOptions, mem, false);
Win32.AVISaveOptionsFree(1, infPtrs);
Marshal.FreeHGlobal(mem);
codec = null;
comprOptions = new Win32.AVICOMPRESSOPTIONS();
allocated = false;
}
if (marshaled)
{
IntPtr p;
p = (IntPtr)comprOptions.lpFormat;
if (p != IntPtr.Zero)
{
Marshal.FreeHGlobal(p);
}
p = (IntPtr)comprOptions.lpParms;
if (p != IntPtr.Zero)
{
Marshal.FreeHGlobal(p);
}
codec = null;
comprOptions = new Win32.AVICOMPRESSOPTIONS();
marshaled = false;
}
}
