forum.vdsworld.com

[DavidR]

I'm trying to programatically determine if there is an active HDMI connection to a PC running Windows 7.

Here's the scenario, There are a large number of Flat Screen monitors attached to tiny PC's running windows 7. These are located around several large facilities. (similar to an airport arrival/departure screen).
The content is "pushed" from a central location.
The problem is, when a monitor is accidentally powered off or "fails" it can remain that way for some time until someone realizes it.

I would like to be able to detect the presence of the monitor and send an alert if it "goes away". I know that the PC itself knows when the monitor is connected because if I walk up to one and cycle power on the monitor, the display format is incorrect (wrong size) until I either reboot the PC or refresh the content.

The question is, how can I detect this? I know I'm grasping here but I really have no idea where to start.. Any ideas?

Thanks.........
...............David

[PGWARE]

Possibly try this:

RegisterPowerSettingNotification

http://msdn.microsoft.com/en-us/library/aa373195(VS.85).aspx

You'd have to register for the GUID_MONITOR_POWER_ON message.

This would need to be converted to VDS syntax as well.

[DavidR]