Creating a sub-texture, from an existing texture, using D3D9

Question

I'm working on an older project that uses D3D9 for rendering 3D environments.

I have a texture file loaded into memory, that I'm applying onto a simple 3D model for rendering. I'm loading this file using the D3DXCreateTextureFromFileInMemory function (MS Docs function link: https://docs.microsoft.com/en-us/windows/win32/direct3d9/d3dxcreatetexturefromfileinmemory), and everything works okay. However, instead of simply reading & loading the entire texture file, I want to only be able to read & load a square portion of it (a sub-texture of sorts). I have a pair of UV coordinates of the supposed square portion of the sub-texture (one UV coordinate for top-left corner of square, one for the bottom-right), relative to the main texture file, but I can't find a D3D9 function that does such a thing (I believe the correct wording for this would be a "Texture Atlas", but I've only heard it a couple of times and I'm not sure).

Here is an example diagram, to make sure my question is clear:

Looking over the MS Docs for the D3D9 texture functions, D3DXCreateTextureFromFileInMemoryEx (MS Docs link: https://docs.microsoft.com/en-us/windows/win32/direct3d9/d3dxcreatetexturefromfileinmemoryex) can also be found with is a supposed upgrade of the previous D3DXCreateTextureFromFileInMemory function, however it only accepts a "height" and a "width" parameters, but not any sort of positional parameter pair. There are also alternative functions that use "Resources" instead of files in memory, but they also do not appear to accept any sort of positional parameters (such as D3DXCreateTextureFromResourceEx, MS Docs link: https://docs.microsoft.com/en-us/windows/win32/direct3d9/d3dxcreatetexturefromresourceex).

There are also several functions for a "UV Atlas" present in the MS Docs archives (https://docs.microsoft.com/en-us/windows/win32/direct3d9/dx9-graphics-reference-d3dx-functions-uvatlas), however I do not think those would be helpful to me.

Is what I'm trying to achieve here even possible using D3D9? Are there any functions that I may be missing that could help me achieve this goal?