Memory Scanning other Programs?

Question

My project already can cycle through a program's memory repeatedly looking for changes by continue-ly pressing a button. Once down to a couple results matching my specified search value, it's job is complete.

Problem 1: How would I go about adding the found pointer(s) and their values into the textbox?

Problem 2: As I said my program can scan through another's memory, but how do I  specify my own range to scan within the target program's memory?

Problem 3: Let's say I am searching for the word "Cheesecake", how do I search for it in the target program's memory? And of course similar to "Problem 2", how can I use my own specified range, with/or a technique to get a range where the value may lie?

note - I am not asking for secret ways to locate my value for a specific target program.



Please help me if you can.