On Wed, 10 Apr 2002, Daniel Morais wrote: > > WinScreenLock isn't useful for page flipping in games. > > It isn't actually, but it can be : just allow us to use the pointer returned > by WinScreenLock and we can take advantage of hardware flipping ! :)
well, kinda :) there was some discussion about adding a new type of lock - which would work better for gaming. > ( which is working fine on most color devices : Palm IIIc, Palm m505, > Clié...only the Prism, to my knowledge, does not support this function, which > is a shame as it use the same LCD controller than the m505... ). it didn't work on early clie's either. :) this is due to bugs from the licensee.. the prism *should* have worked - but, handspring messed up :) its just another reason why those display features should be available - sometimes developers know better than the licensee when it comes to messing with the hardware :) > > This is normally done with a pair of calls to > > WinScreenLock. The first copies the screen into a secondary buffer. > > Not if you call WinScreenLock with 'winLockDontCare', which does make sense > if you are only looking for hardware fliping. > > > So you're both right. It blits and it swaps buffers. > > That's right, my apologies to Matt, I was only seeing my point of vue and > forgot that this function have other interrests than just doing hardware > flipping. ( it's quite late, here, and the last nights was very short :) daniel - grab the 3.5 source code. i believe it goes into a bit of detail on how these routines work. its a pity that the Hwr* routines are not available to use tho :( // az [EMAIL PROTECTED] http://www.ardiri.com/ -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
