what other files have to be loaded for this to work? I did what you suggested and get a syntax error followed by a crash. Even with debug on later to see where the problem is
cheers Roelof "Have a cool mind and a warm heart" - Ajahn Sona "Like ......(hamsters on a wheel), (ambitious people) still climb and climb, with great labor, and incessant anxiety, but never reach the top." Robert Browning "We shall not cease from exploration. And at the end of all our exploring Will be to arrive were we started and know the place for the first time" - T. S. Eliot Dr. Roelof K. Brouwer PH.D. P.Eng. Professor Emeritus Dept. of Computing Science School of Advanced Technologies and Mathematics Thompson Rivers University 900 McGill Road Kamloops, BC Canada, V2C 5N3 email : [email protected] www.tru.ca/advtech/compsci/faculty/rbrouwer -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Dan Bron Sent: December-15-08 3:21 PM To: Programming forum Subject: Re: [Jprogramming] savemat_jviewmat_ Roelof wrote: > I tried the above and I have the same problem as before Yes, I too get a blank image & file. I don't get the freeze though. Sorry for not testing my suggestion before I made it. I wonder why 9!:27'theSentence' is different from executing theSentence directly in the IJX window. My suspicion is that control doesn't pass back from the J engine (j.dll) to the JFE (j.exe) until after the immex phrase has completed. That is, in the situation where you enter a phrase in the IJX window, press enter, then enter another phrase, then enter again, from the first enter to the second, control has passed from j.dll to j.exe and back to j.dll. I speculate that in the case of 9!:27 j.dll checks the immex flag before it returns control to j.exe (executing a phrase if appropriate), and so this round trip is avoided. However, in Roelof's case, the transfer of control is required, as j.exe has the responsiblity of painting graphics. Which makes me think his aims might be acheived via a different indirection: vm =: verb define viewmat i. 16 16 wd 'timer 500' sys_timer_z_ =: 'timer 0' wd@:[ savemat_jviewmat_ bind 'C:\immex0.bmp' ) vm'' This works, which seems like corroboration of my hypothesis (j.exe owns wd, and hence control must pass back to it before timer events can fire, so we get the requisite round trip). -Dan ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
