What's the meaning of 'Reshape' function's second paramter 'TFOutput shape'?

[axmand]

I am trying to use Reshape like this

 var x = _graph.Placeholder(TFDataType.Float, new TFShape(-1, inputHeight * inputWidth), "state");
 var _x= _graph.Reshape(x, _graph.VariableV2(new TFShape(-1,inputWidth,inputHeight,1), TFDataType.Int32));

or

 var x = _graph.Placeholder(TFDataType.Float, new TFShape(-1, inputHeight * inputWidth), "state");
 var shape_variable = _graph.Shape(_graph.VariableV2(new TFShape(shapes), TFDataType.Float));
 var _x= _graph.Reshape(x, shape_variable);

the result puzzle me exceedingly.
What is the correct way to use it?（how to convert TFShape to TFOutput?）

[axmand]

I also mentioned issue in How do I represent a TShape in the TF_Output object ?