pascomartin / jnativehook

Automatically exported from code.google.com/p/jnativehook
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No vkCode, hence getting VK_UNDEFINED #59

Open GoogleCodeExporter opened 9 years ago

GoogleCodeExporter commented 9 years ago
No vkCode, hence getting VK_UNDEFINED.

For these keys, and probably lots more:

VK_CRT_LCD vkCode=0x0FF scanCode=0x6E
VK_BRIGHTNESS_DOWN vkCode=0x0FF scanCode=0x12
VK_BRIGHTNESS_UP vkCode=0x0FF scanCode=0x17

Original issue reported on code.google.com by mark.jeronimus@gmail.com on 23 Jul 2013 at 5:41

GoogleCodeExporter commented 9 years ago
These were not originally supported in 1.1 due to the lack of Java support.  I 
am currently working on providing support in 1.2.  Please build the trunk from 
source and test.  Instructions for compiling are attached to bug 67.

Original comment by a...@1stleg.com on 4 Sep 2013 at 4:51

GoogleCodeExporter commented 9 years ago

Original comment by a...@1stleg.com on 9 Sep 2013 at 10:37

GoogleCodeExporter commented 9 years ago

Original comment by a...@1stleg.com on 9 Sep 2013 at 10:38

GoogleCodeExporter commented 9 years ago
Can you let me know what device you are create these even codes with?  Is it a 
laptop or keyboard?  Model #?

Original comment by a...@1stleg.com on 30 Aug 2014 at 12:43

GoogleCodeExporter commented 9 years ago
Laptop.

Also look at the sheet I linked in issue 60 at scancode 112/117 (extended keys 
with scancode 12 and 17)

Meanwhile I've been working on an all-JNA implementation for both keyboard & 
mouse (extensible to more via a common interface). I've got event pulling 
working now; Working on pushing (listeners). After that come the look-up tables 
for texts and exceptional scancodes/VKcodes.

In your source I also noticed you do a lot of pre-processing in the callback 
functions. This is discouraged because of performance. I just store the literal 
wParam, lParan, and nanotime in an object that I push onto a 
LinkedBlockingQueue and process later.

Original comment by mark.jeronimus@gmail.com on 1 Sep 2014 at 5:42

GoogleCodeExporter commented 9 years ago
Yah, there is a small amount of prepossessing happening on the callback to 
normalize the events in a cross platform way;  It comes down to a few compares, 
assignments and bit shifting and runs very quickly in 1.2.  I should mention 
that 1.2 has offload the Java processing to a ExecutorService (defaults to 
newSingleThreadExecutor) that probably operates similarly to the 
LinkedBlockingQueue you are using.  If I was to post-process on a different 
thread like the ExecutorService, you would not be able to consume events on 
Windows and OS X.  See 
https://github.com/kwhat/jnativehook/wiki/Examples#consuming-events-unsupported

A lot of work was put into speeding up the callback in repose to issue 43 
because I initially thought the response time was causing the hook to 
registered, however, after countless hours of testing and experimentation, it 
looks like it is probably related to the automatic unpacking creating multiple 
library names that leads to the library being loaded too many times.

Now on to the key codes.  In the current trunk (github) I have implemented all 
keys that currently have scancode set 1 codes and sun keyboard extras.  The 
rest of the keys, including lcd controls, do not have predefined scan codes.  
What I will need to do is collect scan codes for each os, figure out where they 
will fit in the look up table, and probably add some more "keycode 
normalization" to two of the three platforms that return a different code for 
those keys.  The laptop I currently have does not produce a hardware scancode 
for the lcd controls and because I don't have a keyboard to produce these 
codes, someone will need to grab the codes (0x112, 0x117) on OS X and Linux 
before I can implement them.  If you run 1.2 against OS X or Linux, the rawCode 
should be all I need.  On Windows that code will be something like code_needed 
= kbhook->scanCode | ((unsigned char) ((kbhook->flags ^ 0x0F) & 0x0F) << 8); 
which I *think* is what 0x112 and 0x117 are for Windows.  On OS X this will be 
a unsigned char 0-255 and on X11 its going to be some KeySym, in both cases the 
rawcode produced by JNativeHook 1.2 should be sufficient. 

Original comment by a...@1stleg.com on 1 Sep 2014 at 3:44