我最近为客户开发了一个虚拟键盘应用程序,该程序与几乎所有程序一起正常工作,但某些命令(如
编辑1:我尝试了SendInput方法(Windows输入模拟器使用SendInput),但DEL键和箭头键仍然不起作用。 ENTER键有效。
编辑2:问题已解决。测试了两个不同版本的Citrix。 这个问题对我帮助很大。:
{ENTER}
或{DEL}
)在Citrix上无法正常工作。是否有解决方法或替代SendKeys
的方法?编辑1:我尝试了SendInput方法(Windows输入模拟器使用SendInput),但DEL键和箭头键仍然不起作用。 ENTER键有效。
编辑2:问题已解决。测试了两个不同版本的Citrix。 这个问题对我帮助很大。:
Citrix thin client在keybd_event的scancode参数使用,即使MS说它未使用并且应为0。 对于Citrix客户端,您还需要提供物理扫描码。 Citrix客户端还存在使用SendInput API生成的键盘输入的主要问题。
我在Windows输入模拟器中修复了代码:
// Function used to get the scan code
[DllImport("user32.dll")]
static extern uint MapVirtualKey(uint uCode, uint uMapType);
/// <summary>
/// Calls the Win32 SendInput method ...
/// </summary>
/// <param name="keyCode">The VirtualKeyCode to press</param>
public static void SimulateKeyPress(VirtualKeyCode keyCode)
{
var down = new INPUT();
down.Type = (UInt32)InputType.KEYBOARD;
down.Data.Keyboard = new KEYBDINPUT();
down.Data.Keyboard.Vk = (UInt16)keyCode;
// Scan Code here, was 0
down.Data.Keyboard.Scan = (ushort) MapVirtualKey((UInt16)keyCode, 0);
down.Data.Keyboard.Flags = 0;
down.Data.Keyboard.Time = 0;
down.Data.Keyboard.ExtraInfo = IntPtr.Zero;
var up = new INPUT();
up.Type = (UInt32)InputType.KEYBOARD;
up.Data.Keyboard = new KEYBDINPUT();
up.Data.Keyboard.Vk = (UInt16)keyCode;
// Scan Code here, was 0
up.Data.Keyboard.Scan = (ushort)MapVirtualKey((UInt16)keyCode, 0);
up.Data.Keyboard.Flags = (UInt32)KeyboardFlag.KEYUP;
up.Data.Keyboard.Time = 0;
up.Data.Keyboard.ExtraInfo = IntPtr.Zero;
INPUT[] inputList = new INPUT[2];
inputList[0] = down;
inputList[1] = up;
var numberOfSuccessfulSimulatedInputs = SendInput(2,
inputList, Marshal.SizeOf(typeof(INPUT)));
if (numberOfSuccessfulSimulatedInputs == 0)
throw new Exception(
string.Format("The key press simulation for {0} was not successful.",
keyCode));
}