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From: ch@siet02.sietec.de (Chitty)
Newsgroups: comp.windows.x
Subject: Displaying Grey Scale Images........
Message-ID: <9102181445.AA06542@siet02.sietec.de>
Date: 18 Feb 91 14:45:13 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 28

Hi there,
          I am trying to display grey scale images and I've some questions.

Q 1) How can I display 2, 16 & 256 Grey level images on a 8 plane screen ?

Q 2) If I change the XImage structure values bit_order and byte_order the 
     XPutImage does not behave according to the new values. why ?

Q 3) How does the X-Call XCreatePixmapFromBitmapData work ? Unfortunately I do
     not have the sources.

A 1) My answer to the 1st Q is 
     for 2 Grey Level Image : use XCreateBitmapFromData and XCopyPlane.

     for 256 Grey Level Image : use XCreateImage and XPutImage.

     for 16 Grey Level Image : ??????????

     Infact the solution suggested above may not be the best.
     Could you help me in displaying 16 Grey Level Image on a 8 plane screen
     
Chittaranjan

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Name : Chittaranjan Keswani        Sietec, West Berlin
Address : ch@sietec.sietec.de      (Internet)
          ..!sietec1!sietec!ch@unido.uucp (UUCP)
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