RtlCopyMemory() question

[Mattzimmerer]

I'm trying to code a driver that will read from either virtual or physical memory given an address and report the contents. Obviously I would vrather read from virtual memory, but at this point I still have a lot to learn about the mysterious kernel lol... This is where im looking: im going to try and copy the contents of an address into a buffer. The goal is one byte using: VOID RtlCopyMemory( IN VOID UNALIGNED *Destination, IN CONST VOID UNALIGNED *Source, IN SIZE_T Length ); My first problem is how I am going to pass these parameters to my driver from my GUI. Secondly, I could benifit from some insight on how this will work. I am thinking that when my driver calls RtlCopyMemory() its going to get a pointer to a byte to copy, but I was planning on passing a virtual address. In that case i have the feeling I should also be passing a process handle, which is obviously not the case. So then is RtlCopyMemory intended to copy from physical memory into a buffer? Other questions (lol): What IRQL should I be operating at? How can I convert a system::string^ into a LPCVOID, (system::string^ is from taking the text from a windows forms textbox) I'm totally willing to write my own algorithm, I just dont know anything about the fundamental structure of system::string^. I dont even know what that ^ is lol...

[_Superman_]

You can pass in a buffer from user mode to kernel mode by defining custom IO control codes with different transfer types. Read about it here - Defining Custom I/O Control Codes[^]

«_Superman_» I love work. It gives me something to do between weekends.
Microsoft MVP (Visual C++)