apologies if ive been misunderstood, but no, i havent taken a pointer from the java app and passed it to the c app, i know that wont work. what i was asking if there something similar to the MS Windows HWND, or a window id, i could pass between processes, not a pointer
ive just had a look at 'son of a grab' source and it seems there is the concept of a CGWindowID, maybe this is what i need ? below is an excerpt from the NSWindow Class Reference: These constants and data type represent the access levels other processes can have to a window's content. typedef enum { NSWindowSharingNone <http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSWindow_Class/Reference/Reference.html#//apple_ref/doc/c_ref/NSWindowSharingNone> = 0, NSWindowSharingReadOnly <http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSWindow_Class/Reference/Reference.html#//apple_ref/doc/c_ref/NSWindowSharingReadOnly> = 1, NSWindowSharingReadWrite <http://developer.apple.com/documentation/Cocoa/Reference/ApplicationKit/Classes/NSWindow_Class/Reference/Reference.html#//apple_ref/doc/c_ref/NSWindowSharingReadWrite> = 2 }; typedef NSUInteger NSWindowSharingType; NSWindowSharingReadWrite The window's contents can be read and modified by another process. Available in Mac OS X v10.5 and later. Declared in NSWindow.h If a process is not allowed to draw in another process's window on OS X, have i misunderstood the concept of NSWindowSharingType ? thanks again Jonathan- Show quoted text - On Fri, May 23, 2008 at 3:48 PM, Kyle Sluder < [EMAIL PROTECTED] <[EMAIL PROTECTED]>> wrote: > On Fri, May 23, 2008 at 9:59 AM, Jonathan Cochrane > <[EMAIL PROTECTED]> wrote: > > Now, on OSX the java app gets a NSView/cocoaviewref. Is there some member > of > > NSView similar to the HWND on windows that I can pass to my C process? > The C > > process can then create a hardware accelerated opengl rendering context > from > > this 'handle' and render to the java apps NSView. > > So you have taken a pointer that points to your Cocoa app's virtual > memory and passed it to a different process? Do you really expect > this to work? > > A process is not allowed to draw in another process's window on OS X. > You cannot do what you want to do the same way you have on Windows. > You must refactor your application to compensate for the enhanced > separation between processes on OS X. > > --Kyle Sluder > _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to [EMAIL PROTECTED]