How to make gif-animation by means of Alaska+Express?

[Eugene Lutsenko]

How to make gif-animation by means of Alaska+Express?

[Auge_Ohr]

How to make gif-animation by means of Alaska+Express?

there is a Sample in Express++
c:\exp19\Samples\Animgif\playgif.PRG

it does need ActiveX (which must be installed)

[Tom]

The PLAYGIFO.OCX control which is referenced in this 15 years old sample is not available anymore from the owner/distributor, and if you try to find it, you will end on several websites with horrible content.

[rdonnay]

I wrote an application for a customer who still uses the PLAYGIFO.OCX.

This one is still working good for him.

http://bb.donnay-software.com/subscribe/playgif.zip

[Eugene Lutsenko]

Many thanks to everyone!

And how to create a gif animation using Alaska +Express?
Is it possible to do this from jpg files and if there are very, very many of them, for example 10000?

[Auge_Ohr]

hi Eugene,

here you find Structure of GIF89a Format
https://www.w3.org/Graphics/GIF/spec-gif89a.txt

have not "see" any Code to "make" a GIF using Xbase++

---

i can "play" a (very) "simple" GIF89a File with my CLASS DXE_GIF() using "pure" Xbase++
https://www.xbaseforum.de/viewtopic.php?f=16&t=12166


you can "reverse" my Code to "write" a GIF File ...

[Eugene Lutsenko]

hi Eugene,

here you find Structure of GIF89a Format
https://www.w3.org/Graphics/GIF/spec-gif89a.txt

have not "see" any Code to "make" a GIF using Xbase++

---

i can "play" a (very) "simple" GIF89a File with my CLASS DXE_GIF() using "pure" Xbase++
https://www.xbaseforum.de/viewtopic.php?f=16&t=12166


you can "reverse" my Code to "write" a GIF File ...

Theoretically, I understand how to do this, but in practice I can hardly do it

[rdonnay]

Is it possible to do this from jpg files and if there are very, very many of them, for example 10000?

Yes, look at the sample program: \exp20\samples\animation\animation.prg.

/*
This sample program shows how to create an animation (similar to an animated GIF)
from a set of .JPG, .BMP, .GIF or .PNG files.

First, the set of files are stored in an XML file as binary data.
The file is created by the function AnimatedImageCreate().
This uses the eXpress++ DC_XmlNode() class to create the XML.

Then the animation is run by reading the XML and using the XbpBitmap:setBuffer()
method to paint each image. This is being run in another thread.
*/

You can run the animation forward or backward and even set the starting and ending frame.

[Eugene Lutsenko]

Thanks a lot, Roger!