SetWindowsHookEx() WM_KEYBOARD_LL not coming through with full screen RDC

Question

I\'m trying to do a away timer style thing like Skype. If the user is \'away\' for a period of time I\'ll trigger something. I have been using SetWindowsHookEx() with WM_KEY

Answer 1

Have a look at GetLastInputInfo(). Try calling that periodically.

Answer 2

Yes. You'll not get keys pressed in remote desktop. I had this problem and only solution I found was this:

Using FindWindow API always look to find RDP window, if you've detected that full-screen RDP window has been created you should do this:

a) Unhook all hooks. b) Reset all hooks.

So create a function which makes SetWindowHookEx API calls and call it SetHook and another one as UnHook function. Then re-call both of them anytime you find out user get into remote desktop.

Now you can get keys pressed even inside remote desktop connection.

I found my old code, I did something like this:

Created a timer with 1 sec. Then

std::string tmp;
HWND hParent = ::FindWindow(TEXT("TSHELLHWND"), NULL);
GetWindowString(hParent, tmp);

ix = za.find(" - Remote Desktop");

if (hParent != NULL && ix != string::npos)
RestartHook();

You also should have a global variable to set when you've restarted hook, otherwise all the time it will restart the hook. When window closed, you can reset that global variable.