Oh, I'm sorry! I'm using FLTK 1.1.9 I want to show a image over another image (is this the correct way to describe this? sorry, but my mothertongue ist not english.. :-) ) In other words, I have a image and its backgroud is also a image...
The picture in front is a battery (which shows the battery-state of an embedded-system, so i need several pictures to show the various battery-states). In background there ist a bar which goes smoothly from black to grey... So it is a tedious to design those battery-pictures with a background that fits to its image behind... I hope you understand this... Thanks! > > > Just to be sure: Is it not possible to link BMPs, PNGs, RGBs=20 > > on linking-time? > > You can, it's just more work for you, as fltk does not support it > directly.=20 > > What I have done in the past is to make a little tool that simply > appended the image binary data onto the end of the executable binary, > and finished off with a small "index" table at the end that held the > size of the app, size of the image files, and where each image began. > Then at runtime the app read its own binary back and extracted the > images into RAM, then I used libpng to open the images from RAM and > proceeded from there. > > It is not worth the hassle - really. > > If you really want a number of images, better just put them in a > sub-folder and load them at runtime using the fltk image API's. > > If you are dead-set on merging them into the application binary, then > XPM is the path of least resistance. > Basically, it serialises the image data as C array definitions, that can > be easily compiled into the code. > > Be aware that some compilers will choke on large images though, as they > have internal limits on how big an array is allowed to be. > XPM was really meant for small images and icons and the like, not for > the large images we use these days. It still works, but... > > > Is it the only possibility to do static linking with XPM?=20 > > Then I have to use XPM... > > See above. > > > Second question: Does XPM, respectively FLTK support transparency? > > XPM format does, although I think it is more of a clip region > transparency, I don't think it has alpha transparency. There's lots of > docs on the web about XPM, so google will find you something. Version > 3.something is current IIRC. > > As to whether fltk supports transparency, that is more of a "that > depends" thing. Which version of fltk, and in what way are you using the > image? > > What is it you are actually trying to do? > If you tell us, maybe someone here will have a way to get the results > you need that is simpler? > > > > SELEX Sensors and Airborne Systems Limited > Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS= > 14 3EL > A company registered in England & Wales. Company no. 02426132 > ******************************************************************** > This email and any attachments are confidential to the intended > recipient and may also be privileged. If you are not the intended > recipient please delete it from your system and notify the sender. > You should not copy it or use it for any purpose nor disclose or > distribute its contents to any other person. > ******************************************************************** > _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
