[GEM-dev] call for compilations

[IOhannes zmoelnig]

tigital at mac.com wrote:
> hi IOhannes,
> 
> ...I haven't had the time to check your latest cvs additions, but I do 
> have some lingering questions regarding how [gemmouse] and [gemkeyboard] 
> work, so that I can get them working on OSX...It appears on both linux 
> and windows, some kind of event callback is installed during gem window 
> creation; but I don't see how/where this is getting hooked into the 
> various callbacks for mouse and keyboard input?  Could you elaborate on 
> what's going on here?

well, it is hard to see, as it is spread over various files different 
for various platforms.

basically this means:
Windows: all the magic is done at window-creation-time in GemWinCreateNT.cpp
the function craeteGemWindow() specifies the even-handler MainWndProc()
(i guess) this is a callback from the OS

X: unfortunately the X-code is hidden in GemMan.cpp, in the function 
dispatchGemWindowMessages() (of which there are 3 versions, one for each 
os - urgh!)
so we do not rely on a callback here but rather poll the event-queue.


>  Once I get this done, then I'll say "let's 
> release"!  Otherwise, it's just not finished...
right, i just thought it would be good to feel some pressure again ;-)

> 
> thanx,
> jamie
> 

mfg.as.dr
IOhannes