Path: utzoo!mnetor!uunet!cbmvax!schein
From: schein@cbmvax.UUCP (Dan Schein CATS)
Newsgroups: comp.sys.amiga.tech
Subject: Re: Alerts
Message-ID: <3739@cbmvax.UUCP>
Date: 6 May 88 12:57:58 GMT
References: <421@hvrunix.UUCP>
Reply-To: schein@cbmvax.UUCP (Dan Schein CATS)
Organization: Commodore Technology, West Chester, PA
Lines: 79
Keywords: what exactly is the Alert String definition

In article <421@hvrunix.UUCP> ahinds@hvrunix.UUCP (Alexander Hinds) writes:
>
>	I'm writing a program and I need to use alerts.  However, the
>Intuition manual isn't too clear on the String structure definition.  
>What I really don't understand is if I want more than one string to
>appear in my alert, do I link the various structures together via the
>last field?  (I can't remember what's it suppossed to be called right
>now.)  The Intuition manual says that this field is a byte long, but that's
>not long enough for a pointer.  Are they assuming that the byte is really
>an integer and is assumed to be 32bits long?  Any help would be appreciated.
>I thank you in advance.
>
>Alexander Hinds

 Heres an OLD example I threw together, its not pretty - but it works :-)


 /* Create a RECOVERY_ALERT */
 /* 09-29-87 Dan Schein     */

#include <exec/types.h>

extern APTR OpenLibrary();
extern VOID CloseLibrary();

APTR IntuitionBase;

char String[] = {0x00,0x18,0x18,'y','o','u',0,1,
	 	 0x00,0x40,0x20,'b','u','m',0,0};

void main();
void main()
{
	int i;
	int Height = 50;
	long AlertNumber = 00010000;

	IntuitionBase = OpenLibrary("intuition.library",33);
											/* open library and check for a specific version of OS */

	/*   0 = Any version
	    30 = 1.0 or higher
	    31 = 1.1 NTSC or higher
	    32 = 1.1 PAL  or higher
	    33 = 1.2 or higher       */

	if (IntuitionBase != 0)			 /* if open succeeded */
	{
		i = DisplayAlert(AlertNumber,String,Height);
											/* open alert window & check which button is pressed  */

		if (i != 0)			/* user pressed left button */
		{
			printf("You pressed the left button!\n");
		}
		else				/* user pressed right button */
		{
			printf("You pressed the right button!\n");
		}
	}
	else
	{
		printf("Update to V1.2!\n");	/* OS version failure message */
	}
	CloseLibrary(IntuitionBase);		/* exit gracefully */

}


-- 
 Dan "Sneakers" Schein   uucp: {ihnp4|allegra|burdvax|rutgers}!cbmvax!schein
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 1200 Wilson Drive			Bix: dschein	     Plink: Dan*CATS
 West Chester PA 19380			phone: (215) 431-9100	   ext. 9542
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