ObtainBestPenA() / ObtainPen()

[Honitos]

I am working on AmiBlitz3-IDE to make it work with Kickstart 2.0 instead of at least Kickstart 3.0...


Is there any alternative to the mentioned functions?
In the configuration you can specify colors; at startup the IDE tries first to get the best matching available colors using ObtainBestPenA() which war introduced with V39 of the system...

[PeterK]

I think that's very difficult to emulate ObtainPen() or ObtainBestPenA() under OS 2.x, because there are not even the required structures available for the screens viewport and colormap. The colormap structure has been expanded a lot in v39 and v36 has nothing like the PaletteExtra structure which is essential for these functions. It looks as if there was no pen management for OS 2.x yet.

[Samurai_Crow]

I'd recommend using only the pen colors defined in the color preferences profile. The extensions to the pen colors in OS 3 were basically a nod to RTG before it came. The chipset can use copper split-screens to avoid palette collisions already.

[thomas]

FindColor() exists in 2.x already. It does not allocate a pen or change the pen's color, it just finds the best matching pen.

[PeterK]

Hmm? The autodocs and LVOs say that FindColor() was introduced in v39 of graphics.library. Is there a similar function for OS 2.x somewhere else, maybe a private or outdated function in OS 3.x?

[Honitos]

FindColor() would fit my needs... I am going to check that routine tomorrow...

Thanks Thomas

[Honitos]

Originally Posted by thomas

FindColor() exists in 2.x already. It does not allocate a pen or change the pen's color, it just finds the best matching pen.

PeterK is right: The Autodocs say, FindColor() was introduced with V39 ... and it is correct, just tested it, not availabel with Kick2.04...