Finally found something that let me work around the issue. Apparently
the key comes in from the keyboard with the LLKHF_EXTENDED flag set.
If you try to inject the key with the extended flag set though it
won't work. Windows bug? Known issue?
On Feb 7, 12:00 am, mic...@gmail.com wrote:
> My application currently does keyboard injection and everything
> works... except for the right shift key. I don't know why, the other
> right-modifier keys all work but right shift key doesn't go through.
> MapVirtualKey returns 0 when I try to map 0x36 (the scancode for right
> shift) and if I manually set the wVk to VK_RSHIFT it ends up getting
> changed to 0 sometime before my low level keyboard hook captures it
> (the OS is removing the VK) but the scancode stays as 0x36.
> I have searched everywhere for an answer but have been unable to find
> anything. Does anyone know what the trick is to injecting the right
> shift key? My right shift key works fine normally, I just can't inject
> it for some reason. Using a low level keyboard hook I compared the
> KBDLLHOOKSTRUCT of a normal right shift key down to my injected right
> shift key down and they look identical with the only difference being
> the injected flag. For some reason though, windows doesn't like my
> injected right shift. I'm at a loss and any help would be appriciated.