适用于Citrix的SendKeys替代方案

Question

我最近为客户开发了一个虚拟键盘应用程序.该程序几乎适用于所有程序,但某些命令与Citrix一起使用{ENTER}或未{DEL}使用Citrix.有解决方法还是替代方案SendKeys？

编辑1:我尝试了SendInput方法(Windows输入模拟器使用SendInput),DEL键和箭头键仍然无法正常工作.然而,ENTER键有效.

编辑2:解决了它.测试了两个不同版本的Citrix.这个问题给了我很多帮助.:

Citrix瘦客户机使用keybd_event的扫描码参数,即使MS表示它未使用且应为0.您还需要提供物理扫描码以供Citrix客户端使用.Citrix客户端也存在使用SendInput API生成的键盘输入的主要问题.

我修补了Windows输入模拟器中的代码:

// 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));
}

Answer 1

尝试使用Windows输入模拟器.不确定它是否支持Citrix,但与SendKeys相比,它更强大.