Re: [ql-users] Transparent background
Anyone know of a way to print characters on the screen without the character's paper affecting the channel / background? For example I want to lbytes a pic and then PRINT on it without affecting the image for each character block but only for the character itself. In essence I want to know if there's such a thing as a transparent PAPER command :-) Or at least something similar... PRINT OVER 1?
Re: [ql-users] Transparent background
On 5/12/01 at 9:46 AM Phoebus Dokos wrote: Anyone know of a way to print characters on the screen without the character's paper affecting the channel / background? Use OVER#channel,0 Yep but OVER has a very annoying property. Once you use AT and place your text at the same position as your previous PRINT statement. ;-) Doesn't Over have three possible settings? 0, 1, -1? Now where is my manual? :-) OVER -1 is exculsive OR. So printing on the background with that might render the text unreadable. If it's printed on a relatively blank area though, you could erase the text by printing it again and then print something else.
Re: [ql-users] Transparent background
Phoebus Dokos writes: Use OVER#channel,0 Wolfgang Yep but OVER has a very annoying property. Once you use AT and place your text at the same position as your previous PRINT statement. ;-) I think thats a wonderful property! It rubs your text out again, restoring the background. (But if its not what you want, I agree, it could get thoroughly annoying ;) Looks like I'll have to screen background saving code after all as well as graphical font print routines :-( You could also try PE sprites, pattern and/or blobs. Per
Re: [ql-users] Transparent background
On 11 May 2001, at 23:06, Phoebus Dokos wrote: Anyone know of a way to print characters on the screen without the character's paper affecting the channel / background? Use OVER#channel,0 Wolfgang
Re: [ql-users] Transparent background
On 5/12/01 at 9:46 AM Phoebus Dokos wrote: Anyone know of a way to print characters on the screen without the character's paper affecting the channel / background? Use OVER#channel,0 Yep but OVER has a very annoying property. Once you use AT and place your text at the same position as your previous PRINT statement. ;-) Doesn't Over have three possible settings? 0, 1, -1? Now where is my manual? :-) Nastae
Re: [ql-users] Transparent background
Anyone know of a way to print characters on the screen without the character's paper affecting the channel / background? For example I want to lbytes a pic and then PRINT on it without affecting the image for each character block but only for the character itself. In essence I want to know if there's such a thing as a transparent PAPER command :-) Or at least something similar... Transparent PAPER is achieved with OVER#channel,1 which in effect ORs the ink pixels into the picture, omitting the paper pixels. In other words, if you print white text on black paper, only the white pixels would be drawn (the dotsa of the character) and the rest of the character space not coloured, you'd see the picture behind the character printed. If you use OVER #channel,-1 it will be fairly similar to OVER 1 but the ink colour pixels are XORed, which means if you print the same text twice in succession in the same place they will cancel out at the second attempt. The effect varies a little with each colour. Both are normally best used with black paper (less easy to mix yourself up when you reset the commands with OVER #channel,0) Or I will have to draw the character's graphically on the screen pixel by pixel? (Well I won't avoid that graphical character generator in the end.. I knew it :-) Shouldn't be necessary assuming OVER and PRINT do what you want (i.e. I understood what you meant). -- Dilwyn Jones [EMAIL PROTECTED] http://www.soft.net.uk/dj/index.html
