Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!wuarchive!mit-eddie!mit-amt!snorkelwacker!ira.uka.de!smurf!ccave!root
From: root@ccave.UUCP (Juergen Hermann)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Clipboard device...
Summary: Code to access the clipboard.device
Keywords: clipboard.device
Message-ID: <85@ccave.UUCP>
Date: 4 Dec 89 01:26:23 GMT
References: <22940@gryphon.COM>
Reply-To: root@ccave.UUCP (Juergen Hermann)
Organization: Chameleon's Cave [JDCP 0.96]
Lines: 88

In article <22940@gryphon.COM> yonge@pnet02.gryphon.com (Yam Hui) writes:
>that I could use anywhere, including the manuals. The sample code in the ROM
>kernal manual does not work at all, and came without comments.

Well, this is uncommented also, but I can assure you that it works :-).
It's written for Manx 3.6 w/ 16 bit ints, but should also work with
Lattice.

It writes a global array of lines (lines[i].buf) to the clipboard,
formatted as IFF.FTXT.


void ClipStr (ClipIO, str, len)
struct IOClipReq * ClipIO;
char * str;
int len;
{
    ClipIO->io_Command = CMD_WRITE;
    ClipIO->io_Flags   = 0;
    ClipIO->io_Data    = (STRPTR) str;
    ClipIO->io_Length  = (LONG) len;

    DoIO (ClipIO);
} /* ClipStr */


int clip_msg ()
{
    struct MsgPort *   Port   = NULL;
    struct IOClipReq * ClipIO = NULL;
    long length;
    register i;
    int err = 0;

    if (line_count > 0) {
	err = 1;

	if ((Port = CreatePort (NULL, 0L)) != NULL &&
		(ClipIO = CreateExtIO (Port, (long) sizeof (*ClipIO))) != NULL) {
	    if (OpenDevice ("clipboard.device", PRIMARY_CLIP, ClipIO, 0L) == 0L) {

		for (i = 0, length = 0L; i < line_count; i++) {
		    length += strlen (lines[i].buf) + 1L;
		}

		ClipIO->io_Offset = 0L;
		ClipIO->io_ClipID = 0L;

		length += 12L;
		ClipStr (ClipIO, "FORM",  4);
		ClipStr (ClipIO, &length, 4);
		ClipStr (ClipIO, "FTXTCHRS", 8);
		length -= 12L;
		ClipStr (ClipIO, &length, 4);

		for (i = 0; i < line_count; i++) {
		    ClipStr (ClipIO, lines[i].buf, strlen (lines[i].buf));
		    ClipStr (ClipIO, "\n", 1);
		}

		if (length & 1L) {
		    ClipStr (ClipIO, "", 1L);
		}

		ClipIO->io_Command = CMD_UPDATE;
		DoIO (ClipIO);

		CloseDevice (ClipIO);

		err = 0;
	    }
	}

	if (ClipIO) {
	    DeleteExtIO (ClipIO);
	}
	if (Port) {
	    DeletePort (Port);
	}
    }

    return (err);
} /* clip_msg */


--
   //  Juergen Hermann		root@ccave.smurf.ira.uka.de
 \X/   75 Karlsruhe 1, FRG	Fido: 2:241/2.1212@FidoNet