How can I simulate function key combinations using C#?

The Fn key is not a key that is sent from the keyboard to the computer. It is actually used to change the meaning of keys on the keyboard (such that the keyboard sends different scancodes when the key is pressed with Fn held down).

You should be able to easily write a simple Windows Forms program that listens to key presses and shows you what has been received. Register for the KeyDown event. The KeyEventArgs your handler receives has various properties that you can inspect to see what is being received.


The FN key isn't a real keyboard key like the other modifiers (shift, alt, ctrl) nor is it a function key like the F1 - F12. The FN key is a hardware only key that simply tells the hardware to send a different keystroke while the FN key is being pressed.

So, you are going to have to adjust the brightness manually like "m-y" stated in the comments or through some other mechanism.

Reference Link.


Comments

  1. Alfred

    • 2017/12/4

    The Fn key is not a key that is sent from the keyboard to the computer. It is actually used to change the meaning of keys on the keyboard 

  2. Christopher

    • 2018/6/18

    The FN key isn't a real keyboard key like the other modifiers ( shift, alt, ctrl) nor is it a function key like the F1 - F12. The FN key is a hardware only key that simply tells the hardware to send a different keystroke while the FN key is being pressed. So, you are going to have to adjust the brightness manually like "m-y" stated in the

  3. Billy

    • 2017/8/16

    keys does not represent valid keystrokes. Examples. The following code example demonstrates how to use the Send method.To run the example, paste the following 

  4. Banks

    • 2020/12/16

    2 Answers2. You can't, and you don't need to. The Fn key only exists as a key as far as the keyboard circuit is concerned. When the key code is sent to the operating system, it looks just as if the function keys were regular keys as on a regular keyboard. The operating system doesn't even know that the Fn key exists, that is taken care of by

  5. Jesus

    • 2016/12/30

    This program is a simple example of using the Win32 SendInput function to generate a simulated keystroke. When you run this program, 

  6. Zeke

    • 2018/12/4

    CTRL+ESC = Open Start menu. CTRL+A = Highlight items in window. CTRL+Z = Undo. Holding down CTRL + ALT and pressing the letter C will insert the copyright symbol (©), unless you have already assigned the letter C to a quick launch shortcut, in which case it will launch the associated application.

  7. Yael

    • 2019/7/9

    The SendInput function does allow you to set flags for “modifier keys” (such as Ctrl or Alt) when you generate a keystroke, so it should be 

  8. Bernardi

    • 2018/7/28

    Key Combinations Function; Win + V: Show the Clipboard Master window: Ctrl + Menu: Show the global context menu: Win + C: Paste marked text to Clipboard Master (the clipboard can be selected) Win + X: Show fixed clipboard: Win + Alt + F1: Paste collection: Win + Alt + F2: Begin/end collection: Win + Alt + F3: Pause/resume all Clipboard Master functions: Win + Alt + F4

  9. Jair

    • 2018/5/6

    A: Use combo key with pressing Fn key + PRTSC(right next to F12 key) for RGB certain function keys when using their TelnetCE emulator. key does^C^C 

  10. Phillip

    • 2016/1/16

    I'm trying to simulate keyboard commands for a custom game controller application. Because I'll need to simulate commands in a DirectInput environment most of the usual methods don't work. I know that using a hook would work 100% but I'm trying to find an easier implementation.

  11. Adam

    • 2015/7/14

    Many keyboard shortcuts use modifier keys, such as Command, Shift and Option. To Copy = Ctrl+fn+prt sc (ins) Also, you can use the onscreen keyboard as an 

  12. Nash

    • 2020/8/11

    At the bottom of the drop-down menu, above "unpin", right-click the name of the program. This might take a moment to pop up. Left-click "properties". Click on the text box that says "shortcut key". Type in your desired keyboard combination by pressing the keys. Once completed, click "ok".

  13. Dilan

    • 2017/3/4

    Create and run automated tests for desktop, web and mobile (Android and iOS) applications (.NET, C#, Visual Basic .NET, C++, Java, Delphi, C++Builder, 

  14. Bentley

    • 2015/2/19

    Function Keys Windows 10. The keyboard is essential for using laptops and desktops. You can save important information, adjust system settings, browse the internet easily with the help of a keyboard. There are many buttons on a keyboard with different functions, including a multi-purpose set of keys in the “function” row.

  15. Johnson

    • 2019/6/10

    Keyboard commands can be simulated by being distinguished from value inputs The standard Windows key combinations can be entered here, combined with the 

  16. Axton

    • 2018/1/11

    Pressing hotkey combinations: Use hotkey () function to press the lets you simulate keyboard input and mouse activity, move and resize windows, etc.

  17. Garcia

    • 2019/5/12

    assumption of uniform input combination probabilities, it is never the case For example, in Figure1(b) and (c), the minimized functions have the same 

Comments are closed.

Recent Posts