Waking up Windows when in AwayMode - c++

Question

I am using the Windows AwayMode to turn off the monitor and audio instead of going into sleep mode. This is working fine. How do I "wake up" the system when an event I want occurs? I can detect the event, but I don't know how to get the monitor back on and the system to appear awake again.
I have tried GetCursorPos() and SetCursorPos() to try move the cursor but that did not work.
I also tried the CreateWaitableTimer() and SetWaitableTimer() but that didn't work either. I set the fResume option to TRUE.
I also tried to turn off AwayMode with the PowerSetRequest() handle and setting it NULL. That also did not work.
I also have tried the SetThreadExecutionState() call with no luck. There is an AwayMode defined here as well. I tried to set that and clear it, but the monitor doesn't come back on.

Answer 1

I found a way to do it using SendInput() with a mouse movement. I also had to use the SetThreadExecutionState() to let the system know that a user is present otherwise it will go back to AwayMode in 2 seconds. Here is the code I used.
// Get the current position to ensure we put it back at the end
POINT pt;
GetCursorPos(&pt);
// Make a mouse movement
// Go to upper left corner (0,0)
INPUT input;
input.type = INPUT_MOUSE;
input.mi.mouseData = 0;
input.mi.dx = 0;
input.mi.dy = 0;
input.mi.dwFlags = MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
SendInput(1, &input, sizeof(input));
Sleep(5); // Just in case this is needed
// Go to lower right corner (65535,65535)
input.mi.dx = 65535;
input.mi.dy = 65535;
input.mi.dwFlags = MOUSEEVENTF_ABSOLUTE | MOUSEEVENTF_MOVE;
SendInput(1, &input, sizeof(input));
Sleep(5); // Just in case this is needed
// Restore to original
SetCursorPos(pt.x, pt.y);
// Now let the system know a user is present
DWORD state = SetThreadExecutionState(ES_DISPLAY_REQUIRED | ES_SYSTEM_REQUIRED);