Detecting when a monitor goes into energy saving mode.

[Das Shrubber]

If you have the energy saving features for a monitor turned on under Display properties, is there anyway of detecting when the monitor is powered down? and then told to wake up?

thanks

Das Shrubber

[TB]

Hello!

A few days ago I wanted to make such a program,
which turns the PC into Stand-by mode, and leave this automatically.
But I found out that any progress, even Timer events, is stopped during this mode.
Maybe there is a way to check this mode, but I don't think so.

[gwdash]

Using the SystemParametersInfo Function, you can get wether the screensaver is on, wether powersave(montior) is enabled, and what the powersave timeout is. use these Flags(from msdn):

SPI_GETPOWEROFFACTIVE Determines whether the power-off phase of screen saving is enabled. The pvParam parameter must point to a BOOL variable that receives TRUE if enabled, or FALSE if disabled.
Windows 98: This flag is supported for 16-bit and 32-bit applications.

Windows 95: This flag is supported for 16-bit applications only.

Windows NT: This flag is supported for 32-bit applications on Windows NT versions 5.0 and later. It is not supported for 16-bit applications.

SPI_GETPOWEROFFTIMEOUT Retrieves the time-out value for the power-off phase of screen saving. The pvParam parameter must point to an integer variable that receives the value.
Windows 98: This flag is supported for 16-bit and 32-bit applications.

Windows 95: This flag is supported for 16-bit applications only.

Windows NT: This flag is supported for 32-bit applications on Windows NT versions 5.0 and later. It is not supported for 16-bit applications.

SPI_GETSCREENSAVEACTIVE Determines whether screen saving is enabled. The pvParam parameter must point to a BOOL variable that receives TRUE if screen saving is enabled, or FALSE otherwise.
SPI_GETSCREENSAVERRUNNING Windows NT 5.0 and later, Windows 98: Determines whether a screen saver is currently running on the window station of the calling process. The pvParam parameter must point to a BOOL variable that receives TRUE if a screen saver is currently running, or FALSE otherwise. Note that only the interactive window station, "WinSta0", can have a screen saver running.
SPI_GETSCREENSAVETIMEOUT Retrieves the screen saver time-out value, in seconds. The pvParam parameter must point to an integer variable that receives the value.

they are not exactly what you want, but they might help