c# DataGridView 全角

using System;using System.Collections.Generic;using System.ComponentModel;using System.Data;using System.Collections;using System.Drawing;using System.Text;using System.Windows.Forms;using System.Runtime.InteropServices;namespace KySoft{ public class ImeForm : System.Windows.Forms.Form { //声明一些API函数 [DllImport("imm32.dll")] public static extern IntPtr ImmGetContext(IntPtr hwnd); [DllImport("imm32.dll")] public static extern bool ImmGetOpenStatus(IntPtr himc); [DllImport("imm32.dll")] public static extern bool ImmSetOpenStatus(IntPtr himc, bool b); [DllImport("imm32.dll")] public static extern bool ImmGetConversionStatus(IntPtr himc, ref int lpdw, ref int lpdw2); [DllImport("imm32.dll")] public static extern int ImmSimulateHotKey(IntPtr hwnd, int lngHotkey); private const int IME_CMODE_FULLSHAPE = 0x8; private const int IME_CHOTKEY_SHAPE_TOGGLE = 0x11; //重载Form的OnActivated protected override void OnActivated(EventArgs e) { base.OnActivated(e); IntPtr HIme = ImmGetContext(this.Handle); if (ImmGetOpenStatus(HIme)) //如果输入法处于打开状态 { int iMode = 0; int iSentence = 0; bool bSuccess = ImmGetConversionStatus(HIme, ref iMode, ref iSentence); //检索输入法信息 if (bSuccess) { if ((iMode & IME_CMODE_FULLSHAPE) > 0) //如果是全角 ImmSimulateHotKey(this.Handle, IME_CHOTKEY_SHAPE_TOGGLE); //转换成半角 } } } }}然后在自己要用的界面public partial class frmMain : ImeForm这样