TASImage Constructor failure

ROOT
#1

I suspect that no one has ever tried this before. I’ve created a TASImage with just the width and height specified. I then intend to populate the image directly.
However, I find after construction the width is of size 1. Example code:

 cout << __FUNCTION__ << " NCol " << NCol << " NRows " << NRows << endl;
fImage = new TASImage("MyImage" ,NCol, NRows);
fImageData = fImage->GetArgbArray();
cout << __FUNCTION__ 
 << " Width "  << fImage->GetWidth() 
 << " Height " << fImage->GetHeight() 
 << " argb "   << fImageData[0] << endl;

The first cout has NCol and NRows going in as 1000.
The second has Width as 1000 and Height as 1.
Has anyone else experienced this?
Chris

#2

It appears that the following works. Not quite sure why, just guessing the documentation is a bit differnt than the coding.

const UInt_t Height = 2048;
const UInt_t Width = 512;
const UInt_t Image_Size  = Width*Height

fImage = new TASImage("MyImage" ,Image_Size,  Height);