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Hi!
Because of the slow refresh rate of the iLiad, you have to manually cause the screen to refresh using a command in the program, after the screen contents have been drawn. Alternately, you can use xepdmgr (see related threads in this forum), which should handle this for you. I recommend using xepdmgr, because we will eventually (I hope) be switching all programs to that.
However, if you just want to try it out, you can also do it the original iRex way. Link to liberdm and include erdm.h, then when you want to refresh, call dmDisplay like this:
dmDisplay(dmCmdPriorUrgent, dmQFull);
That should do the trick. Of course, it gets more complicated than that, but that's the general idea.
Hope this helps!
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