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-   -   How to get states ok keyboard key (http://www.asktheramguy.com/forums/showthread.php?t=153301)

ranma1988 11-11-2015 05:03 AM

How to get states ok keyboard key
 
Hi im trying to triger events when a key was pressed.
do anyone have a solution for this?

My current solution works onnly for a-z keys.

for (int i = 0; i < 255 i++)
{
if(GetAsyncKeyState(i))|
{
ledId = CorsairGetLedIdForKeyName((char)i);
//do action on ledId
}
}

the problem with this solution is that: CorsairGetLedIdForKeyName does not return values for ESC and any other key than a-z keys.

ESC(27) CorsairGetLedIdForKeyName -> CorsairLedId.CLI_Invalid

Yannicked 03-16-2016 02:41 PM

Try creating a windows "hook" with the function and create a map from the virtual keycodes to the corsair id's (in the CorsairLedIdEnum.h file from the SDK)
Code:

HHOOK WINAPI SetWindowsHookEx(
  _In_ int      idHook, // probably WH_KEYBOARD_LL for the keyboard
  _In_ HOOKPROC  lpfn, // the callback
  _In_ HINSTANCE hMod,
  _In_ DWORD    dwThreadId
);

Example:
https://gist.github.com/Yannicked/23919888d759876221c3

hastegag 01-01-2018 11:10 PM

not to revive an old post, but I was trying to get the register_callback.cpp example file from the latest SDK to recognize media keys. I was unable to simply add the VK_MEDIA_NEXT and STOP etc to the struct at the top of the example and in the includes and have them register within the callback example, but I'm assuming that was because the scope of that project was focused on the proprietary keys and the DLL call has something to do with it?

I realized the while loop at the bottom was a super bootleg way (once you comment out the getchar functions of the std io), of getting these to react with that same above mentioned function in windows.h of getasynchkeystate or similar.

This was my approach, but don't know if it is helpful to anyone:
http://www.smithany.com/register_callback.cpp

Very bottom being the relevant stuff. Yannicked, thank you for posting the low level keyboard hook, I will be trying that in place of what I'm doing now but I need to get a better handle on it.


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