but ScrDisplayMode is used for earlier OS version. my device, a palm V runs OS3.3 and supports 16 grayscale (4bit). so i think that i could save some signifivant memory if i exclude 1bit and 2bit depth (my app has a lot of bitmaps) I'm asking what devices hardware dosen't support 4bit screen depth ?
Amir "James" <[EMAIL PROTECTED]> wrote in message news:85142@palm-dev-forum... > > If you want your application to run on devices that use versions of Palm OS > earlier than 3.5, you should have 1-bit bitmaps. AFAIK, most (all?) > pre-OS3.5 devices had hardware that supported multi-bit grayscale, BUT the > OS didn't have API routines to set it. (WinScreenMode wasn't introduced till > 3.5.) > > As has been stated already, even if you're targetting OS3.5 or later, it's > generally a good idea to have 1-bit bitmaps anyway. I don't know of any 3.5 > devices that don't support 2- or 4-bit grayscale, but you might want to > include 1-bit bitmaps as a preventative measure. They won't consume much > extra space, so there's not much harm in doing so. > > > > "Amir Kirshenboim" <[EMAIL PROTECTED]> wrote in message > news:85141@palm-dev-forum... > > > > NEVER MIND..... > > > > it seems like no one here understands my question... > > > > Amir > > > > > > > > "Stringer" <[EMAIL PROTECTED]> wrote in message > > news:85047@palm-dev-forum... > > > > > > >Subject: Re: bitmaps depth > > > >From: "Amir Kirshenboim" <[EMAIL PROTECTED]> > > > >Date: Thu, 25 Apr 2002 14:12:03 +0200 > > > >but i am changing the screen depth to the maximum supported screen > depth > > in > > > >my app start (and setting it back when quiting) ao what kind of screen > > depth > > > >does devices running os3.1 and later have ? > > > >What devices have a maximum supported screen depth of only 1bit or even > > > >2bit <SNIP> > > > > > > Unless you are specifically targetting pre-3.5 devices, it doesn't > > > make sense to change the screen density for pre-3.5 devices. > > > So just assume 1 bit depth on pre-3.5 devices. > > > For 3.5 and later OS, use the supported API's to find out the > > > supported bit depth and color support, then act accordingly. > > > > -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
