On Thu, 12 Mar 2009, Pritpal Bedi wrote: Hi,
> I am almost done with buffered console on GTWVG. > By "buffered console" I mean all paint operations are > done in memory and only final output is transferred to > console on screen. In Clipper parlance you can > think it synonymous as DispBegin()/DispEnd() but > not exactly the same. Under this protocol you may > experience a very smooth window even with verycomplx > GUI elements, i.e., bitmaps, gradient rectangles, boxes, etc. > No more flickering. GTXWC internally uses bitmap with the whole screen contents so expose messages are served as simple coping from the internal screen image to real screen. I guess you want to make the same in GTWVT/GTWVG plus change save/rest screen methods to operate on bitmaps instead of character buffers. Am I right? Or maybe you are thinking about sth different? Please note that using CTWin like API in practice eliminates SAVESCREEN/RESTSCREEN making the whole code much simpler. GTWVW was addressing this aspect. > It may need some tweaking in the existing code which > primarily exploits overlapping windows as with > SaveScreen() | RestScreen() mechanism. One has to > upgrade his code to use multiple consoles. I have a demo > in place to show this. As long as user does not try to manipulate the contents of the screen buffer returned by savescreen then it should not cause any problems. Anyhow some window oriented GTs like CTWIN will not work correctly because they use own itenral buffers which are character oriented. They will have to be modified to work with bit map screen buffers what is not easy job but it's possible. Though probably it will be easier to leave CTW as is and create new similar GT for GTWVG and other GTs which will operate on bitmaps. > My question is: How many of you are using GTWVG and are > willing to adopt to new prorocol. Believe me, it will be very > little effort to change the exiting code but the results will be > truely rewarding. Once this is done, I may think to port > GTWVW in GTWVG if get a substantial number of confirmations > which may persuade me to port GTWVW. I think that many people will find it as very interesting. > So please post your vote here under this thread so that I could > make up my mind to port GTWVW. Please note, the number > must be substancial. I use Windows Harbour builds very seldom so I'm not good person to answer but looking at xharbour.news I'm finding that many people are intersting in GTWVW port. best regards, Przemek _______________________________________________ Harbour mailing list Harbour@harbour-project.org http://lists.harbour-project.org/mailman/listinfo/harbour
