Re: Using Gamepads..?

Hi,

mhh... I still don't realy get it :(

A few years ago when I was still developing for Windows, I used DirectInput.
There any gamepad device was handled as the same, I didn't had to write some special code for every different device.

And I didn't had to care about how the device is connected (Bluetooth, USB..).. I just got a list of devices and their buttons and axis-sticks..

Isn't there something like this for MacOS..?

Aya~


On 05.03.2010, at 18:41, Mr. George Warner wrote:

> On Mar 5, 2010, at 3:09 AM, Aya Koshigaya wrote:
> 
>> Thanks a lot for the source! :)
>> 
>>> I don't know where you get 1K lines of code… I can do all my HID communications in less that a half page of code.
>> 
>> You example has more then a few thousand lines of code - even without the HID Utilities it's still about 1000 lines :)
>> Sure a lot of printf etc, but... still ..
> 
> Boiling it down to the essential (HID) stuff:
> 
> In applicationDidFinishLaunching:
> 
>    hidManagerRef = IOHIDManagerCreate(kCFAllocatorDefault, kIOHIDOptionsTypeNone);
>    IOHIDManagerSetDeviceMatching(hidManagerRef, NULL);
>    IOHIDManagerRegisterDeviceMatchingCallback(hidManagerRef, Handle_DeviceMatchingCallback, nil);
>    IOHIDManagerRegisterDeviceRemovalCallback(hidManagerRef, Handle_DeviceRemovalCallback, nil);
>    IOHIDManagerScheduleWithRunLoop(hidManagerRef, CFRunLoopGetCurrent(), kCFRunLoopDefaultMode);
>    IOReturn ioReturn = IOHIDManagerOpen(hidManagerRef, kIOHIDOptionsTypeNone);
> 
> In Handle_DeviceMatchingCallback:
> 
>    I check the vendor & product ID using:
> 
>    long vendorID = IOHIDDevice_GetVendorID(inIOHIDDeviceRef);
>    long productID = IOHIDDevice_GetProductID(inIOHIDDeviceRef);
> 
>    (note: if you know the exact device you're interested in you can pass a non-NULL dictionary to IOHIDManagerSetDeviceMatching above.)
> 
>    and if it's the device I'm interested in I:
> 
>    IOHIDDeviceRegisterInputReportCallback(inIOHIDDeviceRef, report, reportSize, Handle_IOHIDDeviceIOHIDReportCallback, nil);
> 
> Then in Handle_IOHIDDeviceIOHIDReportCallback I can see my incoming reports.
> 
> All the rest of that code is ether PS3 specific (like the bluetooth stuff) or has nothing to do with HID.
> 
> That's about nine lines of code… ;-)
> 
> All those APIs are documented in my technote at: <http://developer.apple.com/mac/library/technotes/tn2007/tn2187.html>.
> 
> -- 
> Enjoy,
> George Warner, (408)974-0668
> Schizophrenic Optimization Scientist
> Apple Developer Technical Support (DTS)
> <[email protected]>
> 
> 
>