C # simulate keyboard and mouse events

1. Simulate Keyboard Events
System. Windows. Forms. sendkeys
The following are some special key code tables of sendkeys.
Key code
Backspace {backspace}, {BS}, or {bksp}
Break {break}
Caps Lock {capslock}
Del or delete {Delete} or {del}
Down Arrow (down arrow) {down}
End {end}
Enter {enter} Or ~
ESC {ESC}
Help {help}
Home {home}
INS, insert {insert}, or {ins}
Left arrow (left arrow) {left}
Num Lock {numlock}
Page down {pgdn}
Page up {pgup}
Print Screen {prtsc} (reserved for future use)
Right arrow (right arrow) {right}
Scroll lock {scrolllock}
Tab {tab}
Up Arrow (up arrow) {up}
F1 {F1}
F2 {F2}
F3 {F3}
F4 {F4}
F5 {F5}
F6 {F6}
F7 {F7}
F8 {F8}
F9 {F9}
F10 {F10}
F11 {F11}
F12 {F12}
F13 {f13}
F14 {F14}
F15 {F15}
F16 {F16}
Numeric keypad plus sign {Add}
Keyboard minus {subtract}
Numeric keypad multiplication number {multiply}
Keypad division {divide}

To specify keys that can be used with any combination of shift, Ctrl, and ALT keys, add one or more codes before these key codes:

Key code
Shift + (shift = "+ ")
CTRL ^ (CTRL = "^") if you enter
Alt %
Private void button#click (Object sender, system. eventargs E)

{// English Input

            this.richTextBox1.Focus();                                            

            for(int i=65;i<91;i++)

            {

                char Letter=(char)i;

                SendKeys.Send(Letter.ToString());

                System.Threading.Thread.Sleep(100);        

                SendKeys.Flush();

            }        

            for(int i=97;i<123;i++)

            {

                char Letter=(char)i;

                SendKeys.Send(Letter.ToString());

                System.Threading.Thread.Sleep(100);

                SendKeys.Flush();

            }        

        }

        private void button3_Click(object sender, System.EventArgs e)

{// Numeric Input

            this.richTextBox1.Focus();                                            

            for(int i=0;i<10;i++)

            {                

                SendKeys.Send(i.ToString());

                System.Threading.Thread.Sleep(100);        

                SendKeys.Flush();

            }                

        }

        private void button4_Click(object sender, System.EventArgs e)

        {//Backspace

            this.richTextBox1.Focus();

            SendKeys.Send("{Backspace}");        

        }

        private void button5_Click(object sender, System.EventArgs e)

        {//Home

            this.richTextBox1.Focus();

            SendKeys.Send("{Home}");                

        }

        private void button6_Click(object sender, System.EventArgs e)

        {//End

            this.richTextBox1.Focus();

            SendKeys.Send("{End}");        

        }

        private void button7_Click(object sender, System.EventArgs e)

        {//Enter

            this.richTextBox1.Focus();

            SendKeys.Send("{Enter}");        

        }

        private void button8_Click(object sender, System.EventArgs e)

        {//Delete

            this.richTextBox1.Focus();

            SendKeys.Send("{Delete}");        

        }

        private void button2_Click(object sender, System.EventArgs e)

        {//Shift+Home

            this.richTextBox1.Focus();

            SendKeys.Send("+{Home}");                

        }

        private void button9_Click(object sender, System.EventArgs e)

        {//Shift+End

            this.richTextBox1.Focus();

            SendKeys.Send("+{End}");                

}
 
See the description of the method.

public class SendKeys : System.Object

System. Windows. Forms Member

Abstract:

Provides the method to send a key-click to an application.

 

public static void Send ( System.String keys )

Member of system. Windows. Forms. sendkeys

Abstract:

Send a key to the activity application.

 

public static void Sleep ( System.TimeSpan timeout )

System. Threading. Thread Member

Abstract:

Blocks the current thread at the specified time.
 

public static void Flush (  )

Member of system. Windows. Forms. sendkeys

2. Simulate the mouse

Sometimes, we need to simulate mouse movement, clicks, and other actions in our program. -- For example, a macro that recreates user operations or a demo program that demonstrates operation methods. So how can we implement it in. Net?

. Net does not provide a function to change the mouse pointer position and simulate click operations. However, Windows API provides. One of them is:
[Dllimport ("user32.dll")]
Static extern bool setcursorpos (int x, int y );
This function can change the cursor position. X and Y are absolute relative to the upper left corner of the screen.
Another function is:

[Dllimport ("user32.dll")]
Static extern void mouse_event (mouseeventflag flags, int dx, int dy, uint data, uintptr extrainfo );
This function can not only set the absolute position of the mouse pointer, but also be set with relative coordinates. In addition, this function can simulate left and right mouse clicks, scroll wheel operations, and so on. The mouseeventflag is a uint-type enumeration, which is defined as follows:

[Flags]
Enum mouseeventflag: uint
{
Move = 0x0001,
Leftdown = 0x0002,
Leftup-to-date = 0x0004,
Rightdown = 0x0008,
Rightup = 0x0010,
Middledown = 0x0020,
Middleup = 0x0040,
Xdown = 0x0080,
X up = 0x0100,
Wheel = 0x0800,
Virtualdesk = 0X4000,
Absolute = 0x8000
}
For more information about the two functions, see the msdn library or Windows Platform SDK documentation.
The following demo program (full source code, vs. NET 2005/C #) demonstrates how to use the above function, move the mouse to the taskbar, and click the start button.
(This program uses findjavaswex and other API functions to find the taskbar and start menu)

Click here to download original address: http://www.cnblogs.com/eaglet/archive/2009/07/24/1529920.html