On Mar 31, 2008, at 1:42 PM, Alan Veasey wrote:
Without taking too much time, I would like to say
that
this project is a God-send.
I need to call a Windows function called
HidD_GetPreparsedData(). It's second argument is a
structure called _HIDP_PREPARSED_DATA. The MSDN
documentation for this structure says, "The internal
structure of a _HIDP_PREPARSED_DATA structure is
reserved for internal system use." I'm not sure
where
to go from here. I've tried making a new class by
extended Structure and PointerType, but I keep
getting
an access violation. Any help with this would be
greatly, greatly appreciated.
This is the API for HidD_GetPreparsedData():
BOOLEAN
HidD_GetPreparsedData(
IN HANDLE HidDeviceObject,
OUT PHIDP_PREPARSED_DATA *PreparsedData
);
This is the available struct def for
PHIDP_PREPARSED_DATA:
typedef struct _HIDP_PREPARSED_DATA *
PHIDP_PREPARSED_DATA;
The function is asking for a pointer to pointer (PHIDP_PREPARSED_DATA
*). You can use an instance of PointerByReference, or define your own
XByReference type which holds a derived PointerType.
Thank you for this project and keep up the great
work!
You're very welcome :)
T.
4 messages in net.java.dev.jna.usersRe: [jna-users] _HIDP_PREPARSED_DATA ...
