FAQs

combo OCC AND Apple events

How do I turn off cursor movement?

Use a context routing table to send a boolean value for attribute pContextMovesSystemCursor.

How do I get the dimensions of the tablet?

Use a context routing table to request pTabletSize from the driver. The ScribbleDemo GETTING-STARTED document has an example of how to do this.

How can I get the version of the driver?

The following code is an example of how to query the driver for its version:

- (void)applicationDidFinishLaunching:(NSNotification *)aNotification
{
    typedef enum : unsigned char
    {
        EUnknownVersion = 0,
        EAlphaVersion,
        EBetaVersion,
        EWebVersion,
        EDevelopmentVersion,
        EFinalVersion
    } ERELEASE;
     
    struct FileVersion
    {
        uint8 major_I;
        uint8 minor_I;
        uint8 variation_I;
        ERELEASE release_I;
        uint8 build_I;
    };
 
    struct FileVersion  *theVersion = NULL;
    NSAppleEventDescriptor  *version = [WacomTabletDriver dataForAttribute:pVersion
                                        ofType:typeVersion
                                        routingTable:[WacomTabletDriver routingTableForDriver]];
 
    NSData *verData = [version data];
    theVersion = (struct FileVersion*)[verData bytes];
     
    if (theVersion)
    {
        NSString *verString = [NSString stringWithFormat:@"%d.%d.%d", theVersion->major_I, 
                theVersion->minor_I, theVersion->variation_I];
        [driverVersion setStringValue:verString];
    }
}

Where can I download the Driver Request Interface from?

  • The Driver Request Interface is available here.
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