我有一个Microsoft Word加载项,可以在文本中找到相似的单词(但是当我点击一个按钮时!)
我的问题是:当用户输入单词时如何调用函数?
换句话说,当用户输入以获取当前单词并处理它并得到类似的单词时,我想要一个像“TextChange”或“Keypress”这样的事件。
Somethings喜欢这个:
private void TextChangeEventOfCurrentActiveDocument(object sender, System.EventArgs e)
{
...
}
任何其他想法,我可以得到用户输入的新单词?
感谢。
答案 0 :(得分:4)
最后很长一段时间后,我使用Windows挂钩创建了这个加载项。
(特别感谢@Reg编辑)
这里我写的整个代码对我来说很有用。 (删除了一些可选的代码部分。)
<强> ThisAddIn.cs 强>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Xml.Linq;
using Word = Microsoft.Office.Interop.Word;
using Office = Microsoft.Office.Core;
using Microsoft.Office.Tools.Word;
using System.Windows.Forms;
using System.Diagnostics;
using System.Runtime.InteropServices;
using System.Threading;
namespace PersianWords
{
public partial class ThisAddIn
{
private const int WH_KEYBOARD_LL = 13;
private const int WM_KEYDOWN = 0x0100;
private static IntPtr hookId = IntPtr.Zero;
private delegate IntPtr HookProcedure(int nCode, IntPtr wParam, IntPtr lParam);
private static HookProcedure procedure = HookCallback;
[DllImport("kernel32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr GetModuleHandle(string lpModuleName);
[DllImport("user32.dll", SetLastError = true)]
private static extern bool UnhookWindowsHookEx(IntPtr hhk);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr SetWindowsHookEx(int idHook, HookProcedure lpfn, IntPtr hMod, uint dwThreadId);
[DllImport("user32.dll", CharSet = CharSet.Auto, SetLastError = true)]
private static extern IntPtr CallNextHookEx(IntPtr hhk, int nCode, IntPtr wParam, IntPtr lParam);
private static IntPtr SetHook(HookProcedure procedure)
{
using (Process process = Process.GetCurrentProcess())
using (ProcessModule module = process.MainModule)
return SetWindowsHookEx(WH_KEYBOARD_LL, procedure, GetModuleHandle(module.ModuleName), 0);
}
private static IntPtr HookCallback(int nCode, IntPtr wParam, IntPtr lParam)
{
if (nCode >= 0 && wParam == (IntPtr)WM_KEYDOWN)
{
int pointerCode = Marshal.ReadInt32(lParam);
if (pointerCode == 162 || pointerCode == 160)
{
return CallNextHookEx(hookId, nCode, wParam, lParam);
}
string pressedKey = ((Keys)pointerCode).ToString();
//Do some sort of processing on key press
var thread = new Thread(() =>
{
MyClass.WrdApp.CustomizationContext = MyClass.WrdApp.ActiveDocument;
//do something with current document
});
thread.Start();
}
return CallNextHookEx(hookId, nCode, wParam, lParam);
}
private void ThisAddIn_Startup(object sender, System.EventArgs e)
{
hookId = SetHook(procedure);
MyClass.WrdApp = Application;
MyClass.WrdApp.CustomizationContext = MyClass.WrdApp.ActiveDocument;
}
private void ThisAddIn_Shutdown(object sender, System.EventArgs e)
{
UnhookWindowsHookEx(hookId);
}
#region VSTO generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InternalStartup()
{
this.Startup += new System.EventHandler(ThisAddIn_Startup);
this.Shutdown += new System.EventHandler(ThisAddIn_Shutdown);
}
#endregion
}
}
答案 1 :(得分:1)
很抱歉,但没有这样的事件。没有什么能接近它。
所以你被一个按钮困住,或者使用某种计时器每隔一段时间检查一下内容(Timer
类可能是一个选项)。
答案 2 :(得分:1)
您可以使用Windows hooks拦截来自另一个窗口的按键(在本例中为Word)。
或者,Word Application
有一个WindowSelectionChange
事件,在键入时不会触发,但如果用户使用箭头键移动光标或单击一个单词,则会触发。这将允许您对单击的单词做出反应,而不是用户必须移动到屏幕上的其他位置才能单击按钮。