It depends upon what device (arm powered or not) is your target. You can download jpegtest application from http://www.absoluteword.com/jpglib/ to look if it can handle your images faster. If no, probably you should think about gifs (the library can decode them as well) or stay with packed bitmaps. -- Konstantin
"DongDong" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > I'm doing a project with product selection by thumbnails. Also, each product > has a 64x64 thumbnail and 320x320 image. There are 12 thumbnails (4 columns > x 3 rows) on screen at a time. > > It takes about 5 sec to display all twelve jpeg images on screen each time. > When user press up or down, the screen shift up/down one row (4 thumbnails). > Since there is 8 thumbnails still on screen, the program need to convert 4 > more thumbnails only. It takes about 2 seconds. > > Is it more practical to use palm bitmap file format, with which the program > should be able to display without delay? Of course, the file size will be > bigger but the speed will be greatly increased. > > Any advice and suggestion with experience. > > > -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
