*-Phillip Neumann <[EMAIL PROTECTED]> | | Why does the cursor changes its look when, i.e, changing from the root window (X-like cursor) to a application (arow cursor)? Does the app say X to change the cf (cursor font) from X to arrow and then when going back to the root window it says X to change it again?
Yes. Every window can have its own cursor. Remember that eg. scrollbars are windows of their own, as are the wm frames. | Inside the file /usr/X11R6/include/X11/cursorfont.h are lines like this: | | #define XC_X_cursor 0 | #define XC_arrow 2 | | So i imagine the `application' says "ok, X, now you will change the cf from 0 to 2" and then X see cursorfont.h and think "yeah, i will change the cf to `arrow'", then X thinks again "acording to /usr/X11R6/lib/fonts/misc/cursor.pcf.gz i will draw this arrow"... | | Is this true? cf works like this? Almost. What happens is that when the application creates a window, it also says "I like that cute little XC_arrow. I hereby declare that XC_arrow will be the cursor when the pointer is inside me!". When the program is compiled, XC_arrow is simply replaced with 2. Then X gets the message and thinks "That window wants cursor 2. Then I will use cursor number 2 in the cursor font when it has the pointer." | i guess not, becouse changing ```#define XC_X_cursor 0''' to ```#define XC_arrow 0''' dont change the X-cursor to an arrow... so how does it work? This does not really happen dynamically. The name->number mapping is fixed at compile time. | I want to know this becouase i would like to change the default cursors to other ones... You could always try to hack the font itself... | I have done xsetroot -cursor hi hi , where hi is a file drawed with bitmap, but this only change the root's cf (`X'). Yup. Changing the applications cursor isn't trivial. Changing the cf is one possibility. If you are an (aspiring) C hacker you can do this in the wm. Well written apps may have resources to change the cursors. | (btw, i can only draw black points... how do i draw whites ones? or better color ones?) If you use 'bitmap', right mouse button clears pixels. Unfortunately, I don't think it is possible to use coloured cursors. I'd love to be proved wrong, though. | i have try to see the cf's, but `xfontsel -fn cursor.pcf' cannot open it... xfd -fn cursor | How do i change the cursor for writing thinks (the default one) to a pen for example? Dunno. There are probably some font editing programs in Debian somewhere... -- The only way tcsh "rocks" is when the rocks are attached to its feet in the deepest part of a very deep lake. (Linus Torvalds) [EMAIL PROTECTED] [-: .elOle. :-] [EMAIL PROTECTED]
