Hi!

Is it possible to draw a panel OVER a line that was drawn with the DRAW_LINE instruction?

Try it You will know it

you could create a fullscreen panel which has a specific layer that is beneath that panel which should overlap the line. Then you could implement a fast (Bresenham) line drawing function that uses that panel as canvas.

http://www.cs.helsinki.fi/group/goa/mallinnus/lines/bresenh.html

pixel_to_bmap(BMAP* bmap,var x,var y,var pixel);

Are you thinking of drawing a line consisting of many points (drawn with the instruction above) on the fullscreen panel?

Clearing a panel with bmap_fill(BMAP*,vector(0,0,0), 0); and the panel owning the OVERLAY flag is fast enough for this. Drawing a line of let us say.. 200 pixels is fast (instead of writing the WHOLE bmap!).

This is just a solution for his problem, no one talks about performance

Thanks for the quick answer!

I want to draw a grid (every 10 pixel a line vertically and horizontally) and some rectangulars. (about 300 lines)

This would be slow with painting on the BMAP.........(if i am wrong just say)

Cool! That's good!

But which Beta do you mean? (A7 or a version above 6.5)

I forgot to say that I want to make the distances between two lines of the grid "flexible" (the user should be able to change it).
For that I would have to use different BMAPs with different distances.
Another solution for this would be scaling the BMAP but then it gets blurred (i think - i did not try that)

What do you think about creating two BMAPS (one line vertically and another one horizontally) and then use PAN_CREATE to create a grid... (Is that to slow?)

i would create a simple dll function (or do it with lite-c) which draws a line with direct3d. you can draw them before the panels get drawn and i think it would be much faster than with the pixel commands.

Good idea!

The problem is that I don't know how to write a dll....
(I have the MSVC and the A6 SDK but I did not found a simple and good tutorial yet)

Adding the code an describing in a few sentences how I compile it would be great!