SCREENSAVER NOT WORKING WINDOWS 8 INSTALL
SCREENSAVER NOT WORKING WINDOWS 8 CODE

The last option is nice in that it works even with the password protection policy.ДЄs Adrian McCarthy mentioned from MSDN that :

SCREENSAVER NOT WORKING WINDOWS 8 INSTALL

Install a dongle that simulates mouse jiggle.

(Assuming you care only when your application is the active application.)

Don't let the WM_SYSCOMMAND with SC_SCREENSAVE be passed onto DefWindowProc.

Put up a computer-based training window (which requires hooks).

SetThreadExecutionState with ES_CONTINUOUS (as described in other answers).

So, if it weren't for the caveat, your choices would be: That seems to apply even if you use the SetThreadExecutionState with ES_CONTINUOUS.

Windows Vista and later: If password protection is enabled by policy, the screen saver is started regardless of what an application does with the SC_SCREENSAVE notification. The active application receives the WM_SYSCOMMAND message with the wParam parameter set to the SC_SCREENSAVE value, but it does not pass the message to the DefWindowProc function.The active application is not a Windows-based application.Windows does not start the screen saver if any of the following conditions exist: Public Structure MOUSEKEYBDHARDWAREINPUT This comes from : Public Declare Function SendInput Lib 'user32' (ByVal nInputs As Integer, ByRef pInputs As INPUT, ByVal cbSize As Integer) As IntegerД¬onst KEYEVENTF_EXTENDEDKEY As UInt32 = &H1

SCREENSAVER NOT WORKING WINDOWS 8 CODE

The code to put in the Tick event: Dim i(0) As INPUT It's sufficient to move the mouse by a delta of 0,0, no real movement. I put a call to SendInput inside of a Timer that triggers every 50 seconds (just less than the minimum screensaver timeout of 60 seconds). SendInput works! No flash of the screensaver. Then I peeked at the code of 'JiggleMouse' mentioned elsewhere in this question. Then I tried using user32.dll's SetCursorPos and GetCursorPos. The screensaver turns on for only a moment, not long enough to require a password.

The cursor jiggles back and forth and after 1 minute the screensaver flashes on for a short instance and then turns off. I also put this into a Timer's tick event, every 1000 milliseconds: Static dir As Integer = 4Д¬ursor.Position = Cursor.Position + New Size(dir, dir) As commented, it works when there is no screensaver password but fails if the screensaver password is active. I tried capturing SC_SCREENSAVE and returning -1 in VB. For testing, I set the screensaver to 1 minute and required a password.

Screensaver not working windows 8