| [Overview][Constants][Types][Procedures and functions][Variables][Index] | 
Pop region of interest from the stack.
Source position: gpm.pp line 195
| function gpm_poproi( | 
| which: Pgpm_roi | 
| ):Pgpm_roi; | 
Gpm_PopRoi pops the topmost region of interest from the stack. It returns the next element on the stack, or Nil if the current element was the last one.
None.
| 
 | Raise region of interest in the stack. | |
| 
 | Lower a region of interest in the stack. | |
| 
 | Push region of interest on the stack. |