From: Chris Doran [chris_doran@postmaster.co.uk]
Sent: Thursday, December 19, 2002 5:05 AM
To: Info-VAX@Mvb.Saic.Com
Subject: Re: Prob with smg$create_pasteboard

taupin974@hotmail.com (taupin974) wrote in message news:<f948cf20.0212181132.769a415e@posting.google.com>...
> but the id of the pasteboard is 0 !! It's not created i think !!

0 is a valid pasteboard value. Some of the pasteboard/display/keyboard
identifiers are addresses of structs, some are just indexes.

> so, how do you create a pasteboard and parse it well ?

I'm not sure what you mean by "parse" in this context, but to help,
here is another example, in C:

#include <stddef.h>
#include <smgdef.h>
#include <descrip.h>

/* Colours (DECterm only):- */
#define SMGX_M_BLACK	SMG$M_USER1
#define SMGX_M_BLUE	SMG$M_USER2
#define SMGX_M_CYAN	SMG$M_USER3
#define SMGX_M_GREEN	SMG$M_USER4
#define SMGX_M_MAGENTA	SMG$M_USER5
#define SMGX_M_ORANGE	SMG$M_USER6
#define SMGX_M_WHITE	SMG$M_USER7
#define SMGX_M_YELLOW	SMG$M_USER8

/* Static descriptors:- */
static $DESCRIPTOR(labdes, "SMG EXAMPLE");
static $DESCRIPTOR(mes1des, "Normal text:
abcdefghijklmnopqrstuvwxyz");
static $DESCRIPTOR(mes2des, "Text with CR: \r, LF: \n, VT: \v, FF:
\f");

main()
{
int display, pasteboard;
struct dsc$descriptor_s byedes;

SMG$CREATE_PASTEBOARD(&pasteboard);
SMG$CREATE_VIRTUAL_DISPLAY(&6, &40, &display,
    &(SMG$M_BLOCK_BORDER|SMG$M_DISPLAY_CONTROLS));
SMG$PASTE_VIRTUAL_DISPLAY(&display, &pasteboard, &2, &2);
SMG$LABEL_BORDER(&display, &labdes, &SMG$K_TOP, NULL,
    &SMGX_M_YELLOW);
SMG$PUT_LINE(&display, &mes1des, NULL, &SMGX_M_GREEN);
SMG$PUT_LINE(&display, &mes2des, NULL, &SMGX_M_BLUE);
/* Build descriptor at run-time */
byedes.dsc$w_length = 3;
byedes.dsc$b_dtype = DSC$K_DTYPE_T;
byedes.dsc$b_class = DSC$K_CLASS_S;
byedes.dsc$a_pointer = "Bye";
SMG$PUT_CHARS_WIDE(&display, &byedes, &3, &8,
&(SMG$M_BLINK|SMGX_M_YELLOW));
/* Re-use by changing length and pointer (only):- */
byedes.dsc$w_length = 4;
byedes.dsc$a_pointer = "-bye";
SMG$PUT_CHARS_HIGHWIDE(&display, &byedes, &4, &11,
    &(SMG$M_BLINK|SMG$M_BOLD|SMGX_M_CYAN));
SMG$SET_CURSOR_ABS(&display, &6, &1);
}

> Didier Morandi <Didier.Morandi.nospam@Free.fr> wrote in message news:<3DFE51C6.86BE4C4E@Free.fr>...
> > When you create a pasteboard, operation that you need to perform only
> > once, you get back from the call as a return argument an internal
> > identifier, which is actually the pasteboard id. Then you need to use
> > this pasteboard id to perform all further operations: paste unpaste etc.
> > 
> > You cannot do any operation to a given pasteboard that you did not
> > create by yourself first.
> > 
> > (this brings me 15 years in the past...)
> > 
> > D.
> > 
> > taupin974 wrote:
> > > 
> > > I've a problem with this function : smg$create_pasteboard and i begin
> > > with smg.
> > > When i examine the return value of the pasteboard creation, i seem
> > > that the a pasteboard already exist !!
> > > How can i get the id of the existing pasteboard or force the creation
> > > a the pasteboard !!