[RESOLVED] Get notified when Mouse stops moving

...I don't see any such message on any other window such as IE, firefox, notepad, windows explorer etc..You need to call TrackMouseEvent() with TME_HOVER in order to receive WM_NCMOUSEHOVER.

Adding few cents, some detailed code:

1. First create a variable holding your minimum time (in milliseconds) after which you wish your window be notified, and a timer id:

//these are globals
UINT timer_id=153; // some unique integeral value > 0 for timer we will use
UINT report_after=3000; //report after 3 seconds

2. Within your window procedure, you track WM_MOUSEMOVE, if mouse is moving you remove timer if already set, save current system's tick count (that is in milliseconds), and start timer again.


static DWORD last_move;
if(message == WM_MOUSEMOVE) {
last_move=GetTickCount(); //save milliseconds in last_move
SetTimer(hwnd,timer_id,report_after,NULL);
}

3. Then you simply check the timer within window procedure, compare current ticks - last move with report_after which is 3000 (3 seconds), if condition met remove timer and take certain action:

if(message == WM_TIMER && (UINT)wParam==timer_id) {
if(GetTickCount()-last_move >= report_after) {
//well mouse stopped 3.x seconds ago
//it is notified so remove timer
KillTimer(hwnd,timer_id);

//Take desired action here

}
}

I am sure this helps you accomplish.

regards

Good point about killing before setting again. I see, you mean when set timer again with same ID, will replace existing ?

and yes, great idea about setting timer to 3000 ms to save alot of processing.

Thanks for clearing up ValdimirF. I just have modified the code above. Please review it again, I think it is now exactly as you suggested.

regards

Thanks for all the suggestions. I'm going to go ahead and try setting a timer in WM_MOUSEMOVe handler and take appropriate action in WM_TIMER handler.

So, I think my code would look something like this:

UINT timer_id=100;
UINT report_after=3000; (3 sec)

case WM_MOUSEMOVE:
SetTimer(hwnd,timer_id,report_after,NULL);
break;

case WM_TIMER:
// take appropriate action...say I'm printing the current cursor position
if (UINT)wParam==timer_id)
{
Point pt;
GetCursorPos(&pt);
printf("mouse stopped at x=%d; y=%d", pt.x, pt.y);
}
break;

I'm a little confused about not saving & comparing the last move time. Let's say mouse stops for 10 sec. Will the WM_TIMER be called every 3 sec and prints the cursor position 3 times? Or will it just print once (which is what I want)?

last_move=GetTickCount(); //save milliseconds in last_move

Obviously it is no more needed, when timer is being reset on next mousemove.

Is it not required to handle "No Mouse Activity", and just "Mouse Move" only?

Good point. Yes, the above code wouldn't work if the idea is to wait for a delay in mouse activity. But I am just considering "No Mouse Movement" aspect because my objective is to get the mouse location once the mouse stops. So, the above code should work fine as long as the mouse location does not change (even when it's right clicked or scrolled). Thanks for the observation!!