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From: bevis@EE.ECN.PURDUE.EDU (Jeff Bevis)
Newsgroups: comp.sys.amiga
Subject: Re: Lattice C Power Windows
Message-ID: <8912030300.AA24366@en.ecn.purdue.edu>
Date: 3 Dec 89 03:00:55 GMT
References: <[2577758d:2917]comp.sys.amiga@tronsbox.UUCP>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: Purdue University Engineering Computer Network
Lines: 47

In article <[2577758d:2917]comp.sys.amiga@tronsbox.UUCP>, tron1@tronsbox.UUCP (HIM) writes:
>I am attempting to render a screen/window combo. These products have worked
>well for me together before , but can't seem to get it straight now.
>
>The problem is in custom images for gadgets. I used PW2.5 to set up the
>gadgets using DpaintII brushes, and In power windows it looked GREAT.
>
>When the Code generated is compiled into the sampole program they give you ,
>the gadget images are hopelessly munged. The gadgets ARE there , and If I do
>this without the custom imagrey , it works right.
>

When PW writes its code for you, it declares all of its image data like this:

USHORT ImageDataXX {
0x0000,0xffff,0x0000,0xffff
};

But for blit'able imagery (as is used in Intuition Image structs), you must
place the image data in chip memory.  Under Lattice 5.04, this is as simple
as modifying the declarations with the addition of the "chip" keyword.

USHORT chip ImageDataXX {
0x0000,0xffff,0x000,0xffff
};

If you've got a huge data file, full of lots of gadgetry (with images), just
use your editor to do a search and replace of

	USHORT ImageData
with
	USHORT chip ImageData

and all will be fine.  It's a nuisance, but workable.  Certainly, it is still
better than designing gadgets & images by hand!!

As an aside, I have found that DPaint III pics cause problems for the
PowerWindows "screen palette" function -- loading a DPIII pic's color set
into the current screen DOES NOT SEEM TO WORK.  Instead, the program will
hang (not crash).  Be forewarned.  PW2.5 is begging to be revised for these
newer, modern times.


+--------------------------------+--------------------------------------------+
| Jeff Bevis 		         | "But I don't like spam!"		      |
| bevis@en.ecn.purdue.edu	 | 	     Give me Amiga or nothing at all. |
+--------------------------------+--------------------------------------------+