Screen Saver active?
BlitzPlus Forums/BlitzPlus Programming/Screen Saver active?
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| Is there any way of knowing if someone computer is showing an screen saver and that is active? |
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| Try looking at the screen ;-) |
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| What seems to be the problem with screen savers mate? |
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| I would guess that he wants to automatically pause his program or something when the screensaver kicks in? |
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| From the win32 sdk Once a screen saver is chosen, Windows monitors keystrokes and mouse movements, starting the screen saver after a period of inactivity. However, Windows does not start the screen saver if any of the following conditions exist: · The active application is not a Windows-based application. · A computer-based training (CBT) window is present. · The active application receives the WM_SYSCOMMAND message with wParam set to the SC_SCREENSAVE value, but does not pass the message to the DefWindowProc function. There doesn't appear to be a simple API command that just detects if the screensaver has been activated. But you might be able to intecept the WM_SYSCOMMAND in some way, this would require more investigation however. |
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| Would it be possible to use some API call to look at all the running processes, and see if there is a .scr in there? |
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| having looked a little further, it might be possible with SystemParametersInfo in conjunction with SPI_GETSCREENSAVEACTIVE |
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| ok, maybe not, this just tells you whether or not the screen saver feature is enabled, not if the screensaver is actually running. |
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| No idea if this is accurate, or how to implement it, but a quick internet search returned the following: SystemParametersInfo(SPI_GETSCREENSAVEACTIVE,.. returns 0 if there is a screensaver currently running and 1 if there is no screen saver running.. |
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| it's innacurate, what the SPI_GETSCREENSAVEACTIVE does is test whether or not the screensaver option is enabled NOT whether it is running or not. |
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| I have found this out, can you help me to put this in blitz? http://support.microsoft.com/default.aspx?scid=http://support.microsoft.com:80/support/kb/articles/Q150/7/85.asp&NoWebContent=1 Just fill in some gaps M$ dont tell about screen savers http://www.cs.unibo.it/~ljw1004/download/howtoscr.html |
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| OpenDesktop ONLY works under WinNT/2K/XP not win9x/ME *edit* Actually that second link shows how to do it for both OS's, but I don't think you can do it in blitz without a userlib since the third parameter of SystemParametersInfo must be a pointer to a variable |
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| Working DLL here (~8kb zipped, 15kb unzipped) |
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| >Working DLL here (~8kb zipped, 15kb unzipped) Does it works in 98/ME/XP/2000/Vista? |
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