### Debugger Options

The debugger supports the following options. These options should be specified after the idebug command, but before the name of the program you want to debug. For example, to debug the program myprog.exe using the /p- option, use the following command line:

    idebug /p- myprog.exe

Option
  Purpose
/a process_id
  Attach to the already running process process_id. Note that you cannot attach to an already running process on OS/2.
/c child_process_id
  Start debugging the specified child process of the program being debugged. This option only applies to debuggee programs running on OS/2, and is ignored on other platforms.
/h or /?
  Display help for the idebug command.
/i
  Start the debugger in the system initialization code that precedes the call to the main entry point for the program. (C++ only): This can be useful if you need to debug the constructors for static class objects.
/p+
  Use program profile information (this is the default). If the debugger has saved a profile containing information on window, breakpoint, and monitor settings from a previous debug session for this program, the profile is used to restore those settings.
/p-
  Do not use program profile information. The debugger ignores any program profile information, and opens the debugger in a default appearance with no breakpoints set and only the Session Control window and one Source window.

Attach to a Process