Very cool! BTW, from the page:

PFNGLADDSWAPHINTRECTWINPROC p = (PFNGLADDSWAPHINTRECTWINPROC)
wglGetProcAddress("glAddSwapHintRectWIN"); 

(*p)(Lx, Ly, Rx, Ry); // Suggests area to swap

This code asks OpenGL not to swap the whole buffer but only that covered by
the morph. Such a request is an extension to OpenGL so a pointer to it must
be requested. How would you do this with squeaks FFI?

wglGetProcAddress: aString
	<apicall: void* 'wglGetProcAddressA' (char*)>
	^self externalCallFailed

and now...

	| myHandle |
	myHandle := OpenGL wglGetProcAddress: 'glAddSwapHintRectWIN'.
	"Check myHandle to see if its NULL here."

	"Ignore function and module name below"
	myFunction := ExternalLibraryFunction name: '' module: ''
		callType: 1 /* api call */
		returnType: ExternalType bool
		argumentTypes: ((1 to: 4) collect:[:i| ExternalType long]).
	myFunction setHandle: myHandle getHandle. "install function pointer
directly"
	myFunction invokeWith: 0 with: 0 with: 100 with: 100.

  - Andreas

> -----Original Message-----
> From: Wiebe Baron [mailto:wiebe at cosmocows.com]
> Sent: Tuesday, October 31, 2000 7:23 AM
> To: squeak at cs.uiuc.edu
> Cc: recipient list not shown
> Subject: [GOODIE] OpenGL for Squeak
> 
> 
> Hi everyone,
> Here's hardware acceleration in squeak with OpenGL:
> 
> 		www.cosmocows.com/OpenGL/
> 
> Afraid it only runs on windows (feel free to port it elsewhere)!
> This is a work in progress, I'm still exploring Squeak (and OpenGL).
> The page includes a description, example code, a list of 
> bugs, limitations
> and questions.
> 
> The big question:How about OpenGL in the VM under balloon?
> 
> Enjoy,
>   Wiebe.
>