├── .gitignore
├── screenshot.png
├── ScreenSaverStopper.exe
├── CMakeLists.txt
├── README.md
└── main.cpp


/.gitignore:
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1 | # Project exclude paths
2 | /cmake-build-debug/
3 | .idea


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/screenshot.png:
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https://raw.githubusercontent.com/RaymiiOrg/ScreenSaverStopper/master/screenshot.png


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/ScreenSaverStopper.exe:
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https://raw.githubusercontent.com/RaymiiOrg/ScreenSaverStopper/master/ScreenSaverStopper.exe


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/CMakeLists.txt:
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1 | cmake_minimum_required(VERSION 3.15)
2 | project(ScreenSaverStopper)
3 | set(CMAKE_CXX_STANDARD 14)
4 | set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -O2 -s")
5 | set(CMAKE_EXE_LINKER_FLAGS "-static-libgcc -static-libstdc++")
6 | message(CMAKE_CXX_FLAGS: ${CMAKE_CXX_FLAGS})
7 | add_executable(ScreenSaverStopper WIN32 main.cpp)


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/README.md:
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 1 | # ScreensaverStopper
 2 | 
 3 | This application sends the F24 keystroke every 40 seconds. 
 4 | This way, windows should not activate the screensaver.
 5 | 
 6 | [More information found here](https://raymii.org/s/software/ScreenSaverStopper.html)
 7 | 
 8 | Useful if you do not have rights to disable the screensaver, but can run executables.
 9 | 
10 | There is no window, no output, no settings, just a keystroke every 40 seconds. 
11 | If you need to stop the application, use the task manager.
12 | 
13 | Verify input:
14 | 
15 | ![screenshot 2](https://raymii.org/s/inc/img/screensaverstopper-2.png)
16 | 
17 | Resource usage:
18 | 
19 | ![screenshot](screenshot.png)
20 | 
21 | It's written in C++, compiled with GCC 8.1 via MinGW. Filesize is around 14 KB, 
22 | memory usage after a day of running around 600KB.
23 | 
24 | [Author: Remy van Elst](https://raymii.org), license: GNU GPLv3.  
25 | 


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/main.cpp:
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 1 | /**
 2 |  * Stop system from going to screensaver by sending F24 keystroke every 40 seconds.
 3 |  * License: GNU GPLv3
 4 |  * Source: https://raymii.org
 5 |  * Author: Remy van Elst, 2019
 6 |  */
 7 | #define WINVER 0x0500
 8 | #include <windows.h>
 9 | int main()
10 | {
11 |     // 40 seconds
12 |     DWORD sleeptime = 40000;
13 |     INPUT ip;
14 |     ip.type = INPUT_KEYBOARD;
15 |     ip.ki.wScan = 0; // hardware scan code for key
16 |     ip.ki.time = 0;
17 |     ip.ki.dwExtraInfo = 0;
18 |     // list of keycodes:
19 |     // http://web.archive.org/web/20191221104344/https://docs.microsoft.com/en-us/windows/win32/inputdev/virtual-key-codes
20 |     ip.ki.wVk = 0x87; // virtual-key code for the "F24" key
21 |     while (true)
22 |     {
23 |         ip.ki.dwFlags = 0; // 0 for key press
24 |         SendInput(1, &ip, sizeof(INPUT));
25 |         ip.ki.dwFlags = KEYEVENTF_KEYUP; // KEYEVENTF_KEYUP for key release
26 |         SendInput(1, &ip, sizeof(INPUT));
27 |         Sleep(sleeptime);
28 |     }
29 |     return 0;
30 | }
31 | 


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