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C# Help to understand a code


New Coder
Dear all,

I 'm new to forum and also in C# programming.
I have the source code of a project and I would like to know how can I upload it here for helping me.

This project takes data from a shared memory and draw it to a form window as image. How can I take a specific area data, lets say the lower right area of the window and put it to a temporary .bmp or .jpg file in order to send via serial port in time intervals?

Any suggestion to upload the project please!!