[winGRASS] Windows native Xdriver

[Mike Thomas]

Hi all.

Since last I worked on the Grass native Windows Xdriver two things seem to have gone wrong under Windows XP:

1.  It doesn't work at all in the CVS head version of Grass.

2.  It displays maps (d.rast, d.vect, d,erase etc) in the releasebranch_26_april_2002_5_0_0 tag version, but doesn't react to being exposed (after being covered by other windows) or resized, until AFTER a new Grass display command (d.rast,d.vect, d,erase etc) is executed.  For example, if a raster map is displayed and the Xdriver window is covered over by another window then uncovered, the white patch does not go away until a command like d.vect is executed.  

In other words, events seem to be getting buffered somewhere, whereas once they were not.

Having a few weeks holiday at the moment I am poking around in the source, but so far with no headway.  Has anyone any hints about changes made since last November which might affect event handling in this way?

I am also conscious that the driver reportedly does not work on Windows 98, so will also try and look into that.  It would help if someone could briefly report the symptoms so that I know whether they are the same as listed above or not.

Has anyone used the native Windows Xdriver to do real work with Grass?

Cheers

Mike Thomas
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