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[REBOL] Re: /command for AmigaOS ?

From: jean:holzammer:faedv-n:bayern at: 30-Nov-2000 15:51

> Heya Jean, > > HJ> I tried to call some AmigaOS system functions from /core and had
access. But
> HJ> before I invest more time on this, I'd like to know, if there will be
> HJ> official solution ? > > You get command functions for free with the Amiga version? That's not > very nice for us that paid for the Win32 version :( >
Before rumours are spread... There are no command like functions in core. I have a small programm called watch (2KB) running in the background, that tells the OS : send me a message whenever file xyz is modified. When this happens watch takes file xyz and starts it as an amiga dos batch file. an example: in the shell I type: watch file=/ram/xyz command=execute /ram/batch in the rebol script: write %/ram/xyz "dir > /work/dirlist.txt" 1. rebol writes the command "dir > /work/dirlist.txt" to the file /ram/xyz that now looks like: dir > /work/dirlist.txt 2. The OS sends a message to watch saying "the file to be observed has been modified." 3. watch executes the command given, i.e. execute /ram/xyz 4. at execution the batch file starts the dir command that outputs the list of the directory to the file /work/dirlist.txt In this example I started a dos command. But one can start an ARexx script too, of course. And ARexx (in combination with the rxgen.library) is able to call any function the AmigaOS API provides. So for every OS function I'd like to call I have to write a rebol function and an arexx script. You can imagine that this is quite time consuming. And I will not continue this work if there will be a port of /command to AmigaOS. Until now I tried implemented the following functions: from dos.library: Delay ; like wait from exec.library AllocVec ; allocate memory FreeVec ; free it again from intuition.library EasyRequestArgs ; opens a dialog window and returns number of button selected DisplayBeep ; Flashes the screen/outputs a beep sound example script: REBOL [] do %AmigaOS MODULE [dos intuition] for i 1 5 1 ; do this 5 times [ Delay(100) ; wait 100 ticks=2 seconds DisplayBeep(NIL) ; Flashes screen ] CleanUp() ; ensures that all memory that has been allocated using OS functions will be freed again. I hope you could follow my explanations. Ciao, Jean