Crop raw pixel data C++

[nomcycle]

Hello,

I have aquired a pointer to the address of the pixels using the function rawData in a render target as explained here: MRenderTarget

I am attempting to crop those pixels and store the cropped output into memory to send to another framework. I seem to have a misunderstanding of how the pixel data is structured or how multidimensional pointer arrays work. When I send the uncropped pixel data to my framework my output is correct. But my My cropped output seems to result in an image with 0 in all channels or maybe 0 in alpha. When I debug and walk through line by line my variables seem to be correct.

Here is my code: link
I have externally linked it because the code formatting in this post did not seem to work.

The plugin code has to be in C++ as I am sending this data to another library framework for processing.

Any example code or help would be appreciated.
Thanks! 

[nomcycle]

Heres an update,

So I figured out how to crop the pixels, here is my updated code: code. My plugin is nearly working except for a very bad memory leak. The pixel data from the onScreenRenderTarget->rawData() is the culprit. I checked the documents on rawData, and it states that I have to deallocate the pixel memory after using it. But when I call "delete pixels" on line 28 I get the following error:

[b]Debug Assertion Failed!
Expression: _BLOCK_TYPE_IS_VALID(pHead->nBlockUse)

[/b]But the weird thing is this script seems to be doing the exact same thing without issue.

Why can I not delete my pixels after using them?