标签:PostMessage IntPtr Handle keys WM send Zero KEYDOWN
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
static extern bool PostMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
[DllImport("user32.dll")]
static extern int SendMessage(IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam);
const uint WM_KEYDOWN = 0x0100;
const uint WM_KEYUP = 0x0101;
const uint WM_CHAR = 0x0102;
const int VK_TAB = 0x09;
const int VK_ENTER = 0x0D;
const int VK_UP = 0x26;
const int VK_DOWN = 0x28;
const int VK_RIGHT = 0x27;
//According to SPY++ in IE
//ENTER key is
// P KEYDOWN
// P CHAR
// S CHAR
// P KEY_UP
//TAB key is
// P KEYDOWN
// P KEYUP
//DOWN, UP, RIGHT, LEFT is
// P KEYDOWN
// S KEYDOWN
// P KEYUP
//Letters is
// P KEYDOWN
// S KEYDOWN
// P CHAR
// S CHAR
// P KEYUP
private void SendEnter()
{
PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)VK_ENTER, IntPtr.Zero);
PostMessage(this.Handle, WM_CHAR, (IntPtr)VK_ENTER, IntPtr.Zero);
SendMessage(this.Handle, WM_CHAR, (IntPtr)VK_ENTER, IntPtr.Zero);
PostMessage(this.Handle, WM_KEYUP, (IntPtr)VK_ENTER, IntPtr.Zero);
}
private void SendTab()
{
PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)VK_TAB, IntPtr.Zero);
PostMessage(this.Handle, WM_KEYUP, (IntPtr)VK_TAB, IntPtr.Zero);
}
private void SendArrowKey(int key)
{
PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)key, IntPtr.Zero);
SendMessage(this.Handle, WM_KEYDOWN, (IntPtr)key, IntPtr.Zero);
PostMessage(this.Handle, WM_KEYUP, (IntPtr)key, IntPtr.Zero);
}
private void SendChar(int key)
{
//Keydown wParam values are 0x020 less than WM_CHAR wParam
PostMessage(this.Handle, WM_KEYDOWN, (IntPtr)(key - 0x020), IntPtr.Zero);
SendMessage(this.Handle, WM_KEYDOWN, (IntPtr)(key - 0x020), IntPtr.Zero);
PostMessage(this.Handle, WM_CHAR, (IntPtr)key, IntPtr.Zero);
SendMessage(this.Handle, WM_CHAR, (IntPtr)key, IntPtr.Zero);
PostMessage(this.Handle, WM_KEYUP, (IntPtr)(key - 0x020), IntPtr.Zero);
}
标签:PostMessage,IntPtr,Handle,keys,WM,send,Zero,KEYDOWN 来源: https://www.cnblogs.com/HYDCS/p/16513695.html
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