internal static EncoderParameters ConvertFromMemory(IntPtr memory)
{
if (memory == IntPtr.Zero)
{
throw SafeNativeMethods.Gdip.StatusException(SafeNativeMethods.Gdip.InvalidParameter);
}
int count = Marshal.ReadIntPtr(memory).ToInt32();
EncoderParameters p = new EncoderParameters(count);
int size = Marshal.SizeOf(typeof(EncoderParameter));
long arrayOffset = (long)memory + Marshal.SizeOf(typeof(IntPtr));
IntSecurity.UnmanagedCode.Assert();
try {
for (int i = 0; i < count; i++)
{
Guid guid = (Guid)UnsafeNativeMethods.PtrToStructure((IntPtr)(i * size + arrayOffset), typeof(Guid));
int numberOfValues = Marshal.ReadInt32((IntPtr)(i * size + arrayOffset + 16));
EncoderParameterValueType type = (EncoderParameterValueType)Marshal.ReadInt32((IntPtr)(i * size + arrayOffset + 20));
IntPtr value = Marshal.ReadIntPtr((IntPtr)(i * size + arrayOffset + 24));
p.param[i] = new EncoderParameter(new Encoder(guid), numberOfValues, type, value);
}
}
finally {
System.Security.CodeAccessPermission.RevertAssert();
}
return(p);
}
internal static EncoderParameters ConvertFromMemory(IntPtr memory)
{
if (memory == IntPtr.Zero)
{
throw SafeNativeMethods.StatusException(SafeNativeMethods.InvalidParameter);
}
int count;
count = Marshal.ReadInt32(memory);
EncoderParameters p;
p = new EncoderParameters(count);
int size = (int)Marshal.SizeOf(typeof(EncoderParameter));
for (int i = 0; i < count; i++)
{
Guid guid;
guid = (Guid)UnsafeNativeMethods.PtrToStructure((IntPtr)(i * size + (long)memory + 4), typeof(Guid));
int NumberOfValues;
NumberOfValues = Marshal.ReadInt32((IntPtr)(i * size + (long)memory + 4 + size - 12));
int Type;
Type = Marshal.ReadInt32((IntPtr)(i * size + (long)memory + 4 + size - 8));
int Value;
Value = Marshal.ReadInt32((IntPtr)(i * size + (long)memory + 4 + size - 4));
p.param[i] = new EncoderParameter(new Encoder(guid),
NumberOfValues,
Type,
Value);
}
return(p);
}