Does EmWi support runtime loadable image files?

Description

This document shows possibilities to display runtime loadable images in an EmWi application.

Solution

Since version V5.00 Embedded Wizard comes with the infrastructure to support runtime loadable image files. Older versions are not prepared for loadable image files. Even for V5.00 or higher you need to adapt the virtual file system (VFS) to your target system (see subfolder '\EmbeddedWizard\Vfs\' of the EmWi installation directory). On our download center you'll find the HowTo "HT-015-JpegLoader". The Jpeg-decoder library for PC comes with EmWi. If you want to use it on a target, you can license a port of the TARA Jpeg decoder library for your target platform or you can integrate your own Jpeg- or Png-decoder based on our How-To document.

Another possible approach is to use an Applet class to display external decoded image data in EmWi. As examples please have a look in the EmWi installation directory sub-folder '\Examples\ClosedCaption\' and '\Examples\Applet\'. Please see also "Class Views::Applet" in the "Mosaic User Manual".

See also

HowTo document [HT-015-JpegLoader.pdf]

Keywords

Image, bitmap, decoder, JPG, PNG, GIF, runtime loadable, image viewer, applet