public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
[DllImport("USER32.DLL")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName); //导入寻找windows窗体的方法
[DllImport("USER32.DLL")]
public static extern bool SetForegroundWindow(IntPtr hWnd); //导入为windows窗体设置焦点的方法
[DllImport("USER32.DLL")]
public static extern void keybd_event(byte bVk, byte bScan, int dwFlags, int dwExtraInfo); //导入模拟键盘的方法
private void button1_Click(object sender, EventArgs e)
{
IntPtr calculatorHandle = FindWindow(null, "aaa.txt - 记事本");
//判断是否找到了该窗体
if (calculatorHandle == IntPtr.Zero)
{
MessageBox.Show("Calculator is not running.");
return;
}
Clipboard.SetText("第三方");
SetForegroundWindow(calculatorHandle);
keybd_event(0x11, 0, 0, 0);
keybd_event(86, 0, 0, 0);
keybd_event(0x11, 0, 2, 0);
keybd_event(86, 0, 2, 0);
}
}
keybd_event方法的第一个参数值有：（例如：keybd_event(0x11, 0, 0, 0)是CTRL 键 按下 keybd_event(0x11, 0, 2, 0)是CTRL 键 松开）
vbKeyLButton 0x1 鼠标左键
vbKeyRButton 0x2 鼠标右键
vbKeyCancel 0x3 CANCEL 键
vbKeyMButton 0x4 鼠标中键
vbKeyBack 0x8 BACKSPACE 键
vbKeyTab 0x9 TAB 键
vbKeyClear 0xC CLEAR 键
vbKeyReturn 0xD ENTER 键
vbKeyShift 0x10 SHIFT 键
vbKeyControl 0x11 CTRL 键
vbKeyMenu 0x12 MENU 键
vbKeyPause 0x13 PAUSE 键
vbKeyCapital 0x14 CAPS LOCK 键
vbKeyEscape 0x1B ESC 键
vbKeySpace 0x20 SPACEBAR 键
vbKeyPageUp 0x21 PAGE UP 键
vbKeyEnd 0x23 END 键
vbKeyHome 0x24 HOME 键
vbKeyLeft 0x25 LEFT ARROW 键
vbKeyUp 0x26 UP ARROW 键
vbKeyRight 0x27 RIGHT ARROW 键
vbKeyDown 0x28 DOWN ARROW 键
vbKeySelect 0x29 Select 键
vbKeyPrint 0x2A PRINT SCREEN 键
vbKeyExecute 0x2B EXECUTE 键
vbKeySnapshot 0x2C SNAPSHOT 键
vbKeyDelete 0x2E Delete 键
vbKeyHelp 0x2F HELP 键
vbKeyNumlock 0x90 NUM LOCK 键
vbKeyA 65 A 键
vbKeyB 66 B 键
vbKeyC 67 C 键
vbKeyD 68 D 键
vbKeyE 69 E 键
vbKeyF 70 F 键
vbKeyG 71 G 键
vbKeyH 72 H 键
vbKeyI 73 I 键
vbKeyJ 74 J 键
vbKeyK 75 K 键
vbKeyL 76 L 键
vbKeyM 77 M 键
vbKeyN 78 N 键
vbKeyO 79 O 键
vbKeyP 80 P 键
vbKeyQ 81 Q 键
vbKeyR 82 R 键
vbKeyS 83 S 键
vbKeyT 84 T 键
vbKeyU 85 U 键
vbKeyV 86 V 键
vbKeyW 87 W 键
vbKeyX 88 X 键
vbKeyY 89 Y 键
vbKeyZ 90 Z 键
vbKey0 48 0 键
vbKey1 49 1 键
vbKey2 50 2 键
vbKey3 51 3 键
vbKey4 52 4 键
vbKey5 53 5 键
vbKey6 54 6 键
vbKey7 55 7 键
vbKey8 56 8 键
vbKey9 57 9 键
vbKeyNumpad0 0x60 0 键
vbKeyNumpad1 0x61 1 键
vbKeyNumpad2 0x62 2 键
vbKeyNumpad3 0x63 3 键
vbKeyNumpad4 0x64 4 键
vbKeyNumpad5 0x65 5 键
vbKeyNumpad6 0x66 6 键
vbKeyNumpad7 0x67 7 键
vbKeyNumpad8 0x68 8 键
vbKeyNumpad9 0x69 9 键
vbKeyMultiply 0x6A MULTIPLICATIONSIGN(*)键
vbKeyAdd 0x6B PLUS SIGN (+) 键
vbKeySeparator 0x6C ENTER 键
vbKeySubtract 0x6D MINUS SIGN (-) 键
vbKeyDecimal 0x6E DECIMAL POINT (.) 键
vbKeyDivide 0x6F DIVISION SIGN (/) 键
vbKeyF1 0x70 F1 键
vbKeyF2 0x71 F2 键
vbKeyF3 0x72 F3 键
vbKeyF4 0x73 F4 键
vbKeyF5 0x74 F5 键
vbKeyF6 0x75 F6 键
vbKeyF7 0x76 F7 键
vbKeyF8 0x77 F8 键
vbKeyF9 0x78 F9 键
vbKeyF10 0x79 F10 键
vbKeyF11 0x7A F11 键
vbKeyF12 0x7B F12 键
