Thanks for your illustration and patch. I have patched the code to geany source code. Now I can get the memory address of buffer as your mentioned. When I tried your patch, I also dumped the whole memory and checked the heap memory. For example, I wrote several characters in one line. Your patch can give me the output "** The buffer for file '/home/sun/Desktop/1' is at 0x8c98cd0:0x8c98ce9", which means the start address is 0x8c98cd0, and the end address is 0x8c98ce9. However, when I dumped the heap memory and found out the address of same characters string. They are not the same.  The heap start address is 08882000. So the real virtual address is 0x8882000 + 0x002e0568 (offset) = 0x8b62568. Do you have any idea about this situation?

Thank you very much!

Best Regards,

Pengfei