internal Canvas(DocumentFiltersBase parent, IGRStream stream, CanvasType type, string options)
{
_type = type;
_options = options;
_stream = stream;
_streamHandle = stream.NewWritableStreamPtr();
}
public static IntPtr Alloc(IGRStream stream, bool writable)
{
var payloadSize = Marshaler.SizeOf <Payload>();
var retval = Marshal.AllocHGlobal(payloadSize);
var self = StreamHolder.Instance.Register(stream);
var payload = new Payload
{
Open = Methods.Instance.Open.Item1,
Read = Methods.Instance.Read.Item1,
Seek = Methods.Instance.Seek.Item1,
Close = Methods.Instance.Close.Item1,
Write = Methods.Instance.Write.Item1,
StreamObjectRef = self
};
Marshaler.StructureToPtr <Payload>(payload, retval, false);
if (!writable)
{
Error_Control_Block ecb = new Error_Control_Block();
DocumentFiltersBase.Check(ISYS11df.IGR_Extend_Stream(retval, Methods.Instance.StreamCallback.Item1, retval, ref retval, ref ecb), ecb);
}
return(retval);
}
internal Canvas(DocumentFiltersBase parent, System.IO.Stream stream, CanvasType type, string options)
{
_type = type;
_options = options;
_stream = new IGRStreamBridge(stream);
_streamHandle = _stream.NewWritableStreamPtr();
}
internal Extractor(DocumentFiltersBase parent, byte[] byteArray)
{
_bytes = GCHandle.Alloc(byteArray, GCHandleType.Pinned);
_bytesLength = (uint)byteArray.Length;
Error_Control_Block ecb = new Error_Control_Block();
Check(ISYS11df.IGR_Make_Stream_From_Memory(_bytes.AddrOfPinnedObject(), new System.IntPtr(_bytesLength), IntPtr.Zero, ref _streamHandle, ref ecb), ecb);
}
internal Extractor(DocumentFiltersBase parent, System.IO.Stream stream)
{
_stream = new IGRStreamBridge(stream);
_streamHandle = _stream.NewStreamPtr();
}
internal Extractor(DocumentFiltersBase parent, IGRStream stream)
{
_stream = stream;
_streamHandle = stream.NewStreamPtr();
}
internal Extractor(DocumentFiltersBase parent, string filename)
{
Error_Control_Block ecb = new Error_Control_Block();
Check(ISYS11df.IGR_Make_Stream_From_File(filename, 0, ref _streamHandle, ref ecb), ecb);
}
internal Extractor(DocumentFiltersBase parent)
{
}
internal Canvas(DocumentFiltersBase parent, string filename, CanvasType type, string options)
{
_type = type;
_options = options;
_filename = filename;
}