screensaver

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center . Closed 7 years ago . I have been doing some light OpenGL programming for a couple of months and now I want to write a screensaver using the xscreensaver library. I saw How to develop linux screen saver before asking this but I think that particular question is not specific enough. What I have done already - I downloaded the

I want my screensaver appears in the screensaver preview box? When you make a screen saver you need to support a command line argument (/p [HWND]) that will tell you in which windows to show your screen saver. The command line will be pass to you thru the screen saver control panel. here is a link to the full spec . You can start the screen saver, get it's window handle then change it's parent to your forms handle or panel's handle or wherever you want it. 来源： https://stackoverflow.com/questions/903180/how-to-make-a-screen-saver-preview-in-delphi

REASON: I'm working on an emergency alert application that needs to display information on a desktop. When the client receives an alert, it pops up a window. If a screensaver is active or the monitor is in standby the alert will not be visible. I'm wondering if it's possible to wake the computer up via some sort of programatic mouse move or system call so that the alert would be visible. I think the reason a mouse move or keypress wakes it up is because of a hardware interrupt so it may not be possible. Currently, the project is being implemented in C#. I'm interested to hear about solutions

is there a way to check programmatically (via ioctl(), etc.) or by reading a file in /sys, /proc or /dev) whether the screen has been blanked by the Linux console screensaver? Thanks and best regards, Günter You can parse the output of xset q with DISPLAY set, but it's not pretty. $ xset q Keyboard Control: auto repeat: on key click percent: 0 LED mask: 00000000 XKB indicators: 00: Caps Lock: off 01: Num Lock: off 02: Scroll Lock: off 03: Compose: off 04: Kana: off 05: Sleep: off 06: Suspend: off 07: Mute: off 08: Misc: off 09: Mail: off 10: Charging: off 11: Shift Lock: off 12: Group 2: off

I have a screensaver written in C# which takes a screenshot of the Desktop and displays it as the, guess what, screensaver. This works pretty well except in Windows 8 where the screensaver launches in, what looks like, a separate Desktop with a solid background and thus i am only taking a screenshot of this solid background instead of the actual desktop. This only counts if the screensaver is launched by the timeout by windows itself, not if you execute the screensaver directly (by double-clicking the *.scr) nor in the preview-panel (/p switch) or if you preview it using the "Test" button

In Windows a screen saver is just an executable with a .scr extension dumped in the system32, and it is controlled with three switches (/p, /c and /s, I think). How does screen savers work on Mac OS X and Linux? Do they work similarly in Mac OS X and Linux (Gnome, KDE, Ubuntu, or wherever the difference is) or is it completely different? Also, can they be developed in C#/Mono? The screensaver system in OSX is that a screensaver (typically, but not necessarily) is an Objective-C library, extending a base class to implement methods such as drawing, a preference pane, a preview mode and so on.