/// <summary>
/// Send text to client as keypresses. Restores and activates window.
/// </summary>
/// <param name="client">Target client.</param>
/// <param name="text">String to send.</param>
/// <returns>True if all text was successfully sent.</returns>
public static bool SendText(int client, string text)
{
if (string.IsNullOrEmpty(text)) return false;
ClientInfo ci;
if (ClientInfoCollection.GetClient(client, out ci))
{
if (!ci.PrepareWindowForInput())
{
ci.DetachFromWindow();
return false;
}
NativeMethods.INPUT[] inputs = new NativeMethods.INPUT[text.Length * 2];
NativeMethods.KEYBDINPUT kbi = new NativeMethods.KEYBDINPUT();
for (int x = 0; x < text.Length; x++)
{
kbi.wScan = text[x];
kbi.dwFlags = NativeMethods.KEYEVENTF_UNICODE;
inputs[x * 2].mkhi.ki = kbi;
inputs[x * 2].type = NativeMethods.INPUT_KEYBOARD;
kbi.dwFlags = NativeMethods.KEYEVENTF_KEYUP | NativeMethods.KEYEVENTF_UNICODE;
inputs[x * 2 + 1].mkhi.ki = kbi;
inputs[x * 2 + 1].type = NativeMethods.INPUT_KEYBOARD;
}
uint success = NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(inputs[0]));
ci.DetachFromWindow();
return success == inputs.Length;
}
return false;
}
/// <summary>
/// Send text to client as keypresses. Restores and activates window.
/// </summary>
/// <param name="client">Target client.</param>
/// <param name="text">String to send.</param>
/// <returns>True if all text was successfully sent.</returns>
public static bool SendText(int client, string text)
{
if (string.IsNullOrEmpty(text))
{
return(false);
}
ClientInfo ci;
if (ClientInfoCollection.GetClient(client, out ci))
{
if (!ci.PrepareWindowForInput())
{
ci.DetachFromWindow();
return(false);
}
NativeMethods.INPUT[] inputs = new NativeMethods.INPUT[text.Length * 2];
NativeMethods.KEYBDINPUT kbi = new NativeMethods.KEYBDINPUT();
for (int x = 0; x < text.Length; x++)
{
kbi.wScan = text[x];
kbi.dwFlags = NativeMethods.KEYEVENTF_UNICODE;
inputs[x * 2].mkhi.ki = kbi;
inputs[x * 2].type = NativeMethods.INPUT_KEYBOARD;
kbi.dwFlags = NativeMethods.KEYEVENTF_KEYUP | NativeMethods.KEYEVENTF_UNICODE;
inputs[x * 2 + 1].mkhi.ki = kbi;
inputs[x * 2 + 1].type = NativeMethods.INPUT_KEYBOARD;
}
uint success = NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(inputs[0]));
ci.DetachFromWindow();
return(success == inputs.Length);
}
return(false);
}
/// <summary>
/// Send array of System.Window.Forms.Keys to client as keypresses. Restores and activates window.
/// </summary>
/// <param name="client">Target client.</param>
/// <param name="keys">System.Window.Forms.Keys to send.</param>
/// <returns>True if all keys were successfully sent.</returns>
public static bool SendKeys(int client, Keys[] keys)
{
if (keys.Length == 0)
{
return(false);
}
ClientInfo ci;
if (ClientInfoCollection.GetClient(client, out ci))
{
NativeMethods.INPUT[] inputs = new NativeMethods.INPUT[keys.Length * 2];
NativeMethods.KEYBDINPUT kbi = new NativeMethods.KEYBDINPUT();
if (!ci.PrepareWindowForInput())
{
ci.DetachFromWindow();
return(false);
}
for (int x = 0; x < keys.Length; x++)
{
kbi.dwFlags = 0;
kbi.wVk = (ushort)keys[x];
inputs[x * 2].mkhi.ki = kbi;
inputs[x * 2].type = NativeMethods.INPUT_KEYBOARD;
kbi.dwFlags = NativeMethods.KEYEVENTF_KEYUP;
inputs[x * 2 + 1].mkhi.ki = kbi;
inputs[x * 2 + 1].type = NativeMethods.INPUT_KEYBOARD;
}
uint success = NativeMethods.SendInput((uint)inputs.Length, inputs, Marshal.SizeOf(inputs[0]));
ci.DetachFromWindow();
return(success == inputs.Length);
}
return(false);
}
public void WriteText(string characters)
{
NativeMethods.INPUT[] inputs = new NativeMethods.INPUT[2 * characters.Length];
for (int i = 0; i < inputs.Length; i++)
{
var ki = new NativeMethods.KEYBDINPUT();
ki.dwFlags = NativeMethods.KEYEVENTF.UNICODE;
if (i % 2 == 1)
ki.dwFlags |= NativeMethods.KEYEVENTF.KEYUP;
ki.wScan = (short)characters[i / 2];
var input = new NativeMethods.INPUT();
input.type = NativeMethods.INPUT_KEYBOARD;
input.U.ki = ki;
inputs[i] = input;
}
if (NativeMethods.SendInput((uint)inputs.Length, inputs, NativeMethods.INPUT.Size) == 0)
throw new Win32Exception();
}
private void PressOrReleaseKey(VirtualKeyShort keyCode, bool down)
{
var ki = new NativeMethods.KEYBDINPUT();
ki.wVk = keyCode;
if (!down)
ki.dwFlags = NativeMethods.KEYEVENTF.KEYUP;
var input = new NativeMethods.INPUT();
input.type = NativeMethods.INPUT_KEYBOARD;
input.U.ki = ki;
NativeMethods.INPUT[] inputs = { input };
if (NativeMethods.SendInput((uint)inputs.Length, inputs, NativeMethods.INPUT.Size) == 0)
throw new Win32Exception();
}
private static void LogKeyboardInput(NativeMethods.KEYBDINPUT input)
{
var isExtendedKey = (input.dwFlags & NativeMethods.KEYEVENTF_EXTENDEDKEY) != 0;
var isKeyUp = (input.dwFlags & NativeMethods.KEYEVENTF_KEYUP) != 0;
var isUnicode = (input.dwFlags & NativeMethods.KEYEVENTF_UNICODE) != 0;
var isScanCode = (input.dwFlags & NativeMethods.KEYEVENTF_SCANCODE) != 0;
if (isUnicode && input.wVk != 0)
{
Debug.WriteLine("UNEXPECTED: if KEYEVENTF_UNICODE flag is specified then wVk must be 0.");
return;
}
var builder = SharedPools.Default <StringBuilder>().AllocateAndClear();
builder.Append("Send Key: ");
char ch;
if (isUnicode || isScanCode)
{
builder.Append(input.wScan.ToString("x4"));
ch = (char)input.wScan;
}
else
{
builder.Append(input.wVk.ToString("x4"));
ch = (char)(NativeMethods.MapVirtualKey(input.wVk, NativeMethods.MAPVK_VK_TO_CHAR) & 0x0000ffff);
}
// Append code and printable character
builder.Append(' ');
AppendPrintableChar(ch, builder);
if (!isUnicode && !isScanCode && input.wVk <= byte.MaxValue)
{
AppendVirtualKey((byte)input.wVk, builder);
}
// Append flags
if (input.dwFlags == 0)
{
builder.Append("[none]");
}
else
{
builder.Append('[');
if (isExtendedKey)
{
AppendFlag("extended", builder);
}
if (isKeyUp)
{
AppendFlag("key up", builder);
}
if (isUnicode)
{
AppendFlag("unicode", builder);
}
if (isScanCode)
{
AppendFlag("scan code", builder);
}
builder.Append(']');
}
Debug.WriteLine(builder.ToString());
SharedPools.Default <StringBuilder>().ClearAndFree(builder);
}
