[XForms] Suggest addiing documentation for fl_XFlush

[Rick Engebretson]

After reading a little about Xlib programming, it was clear that 
flushing the buffer that is written to the X Server was important for 
automation and animation. I didn't find anything in the documentation, 
but I did find the function fl_XFlush in the file "forms.h"

It makes a difference in a little canvas program, completing the display 
draw before a sleep is called in the application.

Should anybody care, I put some FreePascal XForms binding units and 
demos up in HTML. The HTML format shows the 8 space tab, but if copied 
into an editor with 4 space tabs it looks OK. It seems to work on 
opensuse 12.2, and freepascal 2.6.2, and needs a "cursorfont.inc" file 
from eg. the freepascal distribution.

> http://www.sytekcom.com/eng/Freepascal_XForms_Units.html

> http://www.sytekcom.com/eng/Freepascal_XForms_Demos.html


Anyway, I've been looking for a toolkit like this for a long time. Thanks.