Setting user breakpoints at runtime

[ingo_berg]

Hi,

What was the name of the Windows API function that allowed setting a user breakpoint at program runtime? I have a app that runs very fast and want to debug the running app but i do not want to start it from the debugger since im investigating an error that does not occur when starting the app from the debugger.

Regards,
Ingo

[Steven_L_Intel1]

DebugBreak

[ingo_berg]

Is there already a module that enables DebugBreak for fortran or do I have to write my own interface? If so, can you give me an example how?

[Steven_L_Intel1]

USE KERNEL32

When you look up a Win32 API routine in the MSDN documentation, click the "check" on the page to see more information. It will list the library the routine is found in, such as "kernel32.lib". That's your clue as to the module name to use.

Here's a little program I wrote yesterday to test this API (and IsDebuggerPresent, which tells you if the program is running under the debugger).

program Console3

implicit none
integer i
do i=1,10
call sub (i)
end do

end program Console3

subroutine sub (i)
use kernel32
integer i, ret
if (i == 5) then
  if (IsDebuggerPresent() /= 0) then
    Call DebugBreak
  else
    write (*,*) "Not in debugger"
  end if
end if
return
end subroutine sub

[ingo_berg]

Thank you very much, this is all I need.