Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!cs.utexas.edu!rutgers!bagate!sjuphil!dcarpent
From: dcarpent@sjuphil.uucp (D. Carpenter)
Newsgroups: comp.sys.next
Subject: displaying an image:  how?
Message-ID: <1991Jun23.210636.13446@sjuphil.uucp>
Date: 23 Jun 91 21:06:36 GMT
Reply-To: dcarpent@sjuphil.UUCP ()
Organization: Saint Joseph's University
Lines: 39

Could some compassionate soul tell me what is lacking in
the code below?  I am trying to write a method that, in
response to a button click, will find a tiff image, create
a window for it, size the window to the size of the image,
and then display it on screen.  Probably fairly simple for
people who, unlike me, know what they are doing. 

I have managed to get the window created, and sized to
the image, but I can't get the image to display.  I haven't
explicitly created a View for the window, so perhaps
there is nothing to composite into?  How would I do this?

Here's what I have so far:

- displayImage:sender
{
  	myImage = [ [NXImage alloc] initFromFile: "/me/anImage.tiff" ];
 	[myImage getSize:&imageSize];

	NXSetRect (&rect, 500.0, 350.0, imageSize.width,
					imageSize.height);
	myWindow = [Window newContent:&rect
				 style:NX_TITLEDSTYLE
				 backing:NX_BUFFERED
				 buttonMask:NX_CLOSEBUTTONMASK
				 defer:YES];
	[[myWindow display] makeKeyAndOrderFront:self];
	
	[myImage composite:NX_COPY toPoint:&(rect.origin)];
	return self;
}

Thanks in advance for any help.

-- 
===============================================================
David Carpenter            dcarpent@sjuphil.UUCP                    
St. Joseph's University    dcarpent@sjuphil.sju.edu
Philadelphia, PA  19131