Ben, If you don't have the Palm_SDK_Headers.zip package from Palm's Plugged In download site you should get it. These headers have what you need.
The file HsKeyTypes.h contains the define you need. #define keyBitExt2VolumeUp 0x00000100 // Volume Up #define keyBitNumExt2VolumeUp 8 #define keyBitExt2VolumeDown 0x00000200 // Volume Down #define keyBitNumExt2VolumeDown 9 #define keyBitExt2Side 0x00000400 // Side button #define keyBitNumExt2Side 10 Ron -- For information on using the PalmSource Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
