Running External Program's

You can run external application from within a evolve program using the ext_run command. This command takes two arguments the first is set on return from the statement to true if the program has been started and false if it has not started. Note only one program can be run at a time. To a check if the external program is still running the ext_active command can be used this takes one argument with is set to true if the external program is running.

The following example runs notepad and when that is closed it runs write.

//---------------------------------------

// File: RunExternal.e

//---------------------------------------

//---------------------------------------

// Block: go

//---------------------------------------

block Go

ext_run Running "C:\Windows\Notepad.exe"

if Running == true

outl "Notepad running, close it to run write"

else

outl "Notepad not running"

_if

Running = true

while Running == true

ext_active Running

_while

ext_run Running "C:\Windows\write.exe"

if Running == true

outl "Write running"

else

outl "Write not running"

_if

_block