what is the SendKey for Windows Key [duplicate] - c#

This question already has answers here:
How to press the Windows key programmatically using C# SendKeys
(4 answers)
Closed 8 years ago.
I want to know the sendkey for windows key (that key in keyboard with windows Flag on it)

I don't think you can easely call the windows flag key. You will need to p/invoke an API function instead, I think it was keybd_event to send the Windows key.
check Click here Or Click Here

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wpf how to view desktop or go desktop by using user32 [duplicate]

This question already has answers here:
Programmatically show the desktop
(2 answers)
Simulating Key Press C#
(8 answers)
Closed 11 months ago.
hi i want to create application when i click the button it go to desktop, i mean when you press Win + D it go to desktop directly, i want to use user32 to be more practical, I want to use this method in the future too, but how?
i dont want to use this way, this road is a little weak :
II.Keyboard.KeyDown(VirtualKeyCode.LWIN);
II.Keyboard.KeyPress(VirtualKeyCode.VK_D);
II.Keyboard.KeyUp(VirtualKeyCode.LWIN);
thank you for answer

Use SendKeys with a non-active window [duplicate]

This question already has answers here:
Simulating Key Press C#
(8 answers)
SendKeys to inactive application
(3 answers)
Closed 2 years ago.
Can I SendKeys to a selected window in c#?
The Program knows the window which it has to send it and the window not really necessary to be the active window.
I just want to give the program window name and send into it.
EX : I type application name (notepad for example) and not really necessary to be focused Upon the meant window.

C# - Using FN+Fkeys with SendKey? [duplicate]

This question already has answers here:
How can I simulate function key combinations using C#?
(2 answers)
Closed 7 years ago.
So, I've created an on screen keyboard which is working great - except on my current keyboard I press FN and F1 (for example) and my screen brightness increases. F2 decreases, F5 turns backlit keyboard on/off etc etc
Can I recreate this on my keyboard? I thought maybe there would be someway of seeing how it works currently and adding that to my code? But I'm just a beginner so I don't really know.
I don't imagine there is a SendKeys parameter to handle this, so is there a work around?
Cheers!
The FN key modifies the key code being sent. So to do this (since the FN key acts as a hardware modifier as opposed to ALT, SHIFT, etc.) you could create a MessageBox that displays the key code whenever you press a key and use the values it gives you with these codes

Calculator windows forms c# [duplicate]

This question already has an answer here:
Capture keyboard inputs without a textbox
(1 answer)
Closed 7 years ago.
I'm working on an university project of a windows forms calculator with c#.
Is fully functional, but the question is.
Can I insert numbers in the main textBox without focusing on it. I want it to work like windows calculator and insert numbers without having to click the textbox.
I've try a lot of methods like using the event Key_Press directly on the form but nothing works.
Ps. Is like windows calculator.
Set the Form.KeyPreview property to true and handle the Form_KeyPress event.

To detect logoff [duplicate]

This question already has answers here:
C# - How to detect a Windows shutdown/logoff and cancel that action (after asking the user)
(3 answers)
Closed 5 years ago.
Is it possible to detect when a PC is logging off. I need to develop an application which writes in a text document about the logoff time, before the PC gets logged off.
For .NET see this question: Is there a way in c# to detect a Windows shutdown/logoff and cancel that action (after asking the user)

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