Hi Aaron,
I have a small simple sample (gee what a rhyme!) that draws 2-bit bitmaps
following the "Seeing gray" article's instructions. I'll send it to you via
direct email.
Hope this helps.
Rgds,
JK Lam
Metrowerks technical Support
----- Original Message -----
From: Aaron Ardiri <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Sunday, April 25, 1999 10:47 AM
Subject: 2bit greyscale?
> hej!
>
> just wondering if anyone had any references to drawing
> 2bit grayscale images?
>
> i have referred to the "seeinggray" gray article at
> the Palm site, however it was not explanatory enough.
>
> currently, my application using 1bit bitmaps, however
> i want to use 2bit (to have the gray levels). any ideas,
> source code references? demos?
>
> i have checked out <UI/WindowNew.h> and here is the
> Bitmap structure:
>
> ---
> typedef struct {
> Word width;
> Word height;
> Word rowBytes;
> BitmapFlagsType flags;
> Byte pixelSize; // bits/pixel
> Byte version; // version of bitmap. This is vers 1
> Word nextDepthOffset; // # of DWords to next BitmapType
> // from beginnning of this one
> Word reserved [2];
> // Byte bits[] // If pixelSize == 1:
> // this is the start of the pixels
> // If pixelSize >= 2, we have:
> // ColorTableType followed by pixels
> // In most cases the ColorTableType
will
> // have 0 entries however and be
only 1
> // word long.
> } BitmapType;
> ---
>
> i dont recall finding any utilities that generated 2 bit
> bitmaps, would this mean we would have to load the
> bitmaps into the palm application, then hack the memory
> to get 2bit? - this structure even comments out "bits" -
> so there is no direct way of accessing the color values
> without poking into "unknown" memory.
>
> cheers.
>
> az.
> --
> Aaron Ardiri
> Lecturer http://www.hig.se/~ardiri/
> University-College i G�vle mailto:[EMAIL PROTECTED]
> SE 801 76 G�vle SWEDEN
> Tel: +46 26 64 87 38 Fax: +46 26 64 87 88
> Mob: +46 70 352 8192 A/H: +46 26 10 16 11
>
>
