"Draw" dinamically image on Palm device

[ccorsani]

Hi all,

my problem is to "draw dinamically" an image on a palm device snet by a PC server via bluetooth. I think there's two way:

1 - create a palm native bitmap format on the server and send the "blob" to palm device. I have experimented that solution but still no results. In particular I used a source code found in http://www.kawt.de/doc/palmimages.html that convert gif to Palm native
Bitmap Format. It runs. After converting I sent my image to palm and "store" it in this way:

bitmapBufferH = MemHandleNew(len);
bitmapBufferPtr = MemHandleLock(bitmapBufferH);

..... put bytes directly in bitmapBufferPtr ...

WinDrawBitmap(bitmapBufferPtr, 26, 15);
MemHandleFree(bitmapBufferH);

a "strange" image appear ... if someone can suggest where may I'm wrong.

2 - Send directly to the palm device a png (or other well known format) image and "draw" it. I know that ZBoxZ has a png viewer ... the problem is that a need a library to view a png image, not an app. Is it possible to modify such source code to derive a png lib (and of course let it freely used)?

If someone have suggestions they are wellcome.

Thanks to all
_________________
Cristiano Corsani
------------------------------------------
software designer
ccorsani@sw-n.it
FIRENZE - ITALY

[hansschmucker]

I guess it's best to let the PC do the transcoding from a complex format to PackBits compressed PalmBMP files, then send them. Now all you have to do is store that bitmap and then paint it. Just don't forget to allocate enough memory!