About how to trigger multiple Keyboard Events in Winform at the same time

Some time ago, it was a headache because of this problem that triggered multiple Keyboard Events at the same time,

Now,

List <T> generic set is used here.

First, a static set is used to store the set of keys that have been pressed, and then all Keyboard Events in the set are run. Of course, when you open a key, remove it from the keyboard set and run it again.

The following is a simple example.

Static List <char> pressChar = new List <char> ();

 

Clever Use of KeyPress and KeyUp events

Private void Form1_KeyUp (object sender, KeyEventArgs e)

{

PressChar. Remove (char) e. KeyCode );

Foreach (char c in pressChar)

{

Switch (c)

{

Case 'A': this. button1.Left-= 1;

Break;

Case 'D': this. button1.Left + = 1;

Break;

Case 'W': this. button1.Top-= 1;

Break;

Case's ': this. button1.Top + = 1;

Break;

}

}

}

Private void Form1_KeyPress (object sender, KeyPressEventArgs e)

{

If (! PressChar. Contains (e. KeyChar ))

{

Pressint. Add (e. KeyChar );

}

Foreach (char c in pressChar)

{

Switch (c)

{

Case 'A': this. button1.Left-= 1;

Break;

Case 'D': this. button1.Left + = 1;

Break;

Case 'W': This. button1.top-= 1;

Break;

Case's ': This. button1.top + = 1;

Break;

}

}

}

In this way, you can run all the events that are pressing keys .....