直接把控件的imemode = imdemode.kankanhalf，強制轉化成半角就OK。
二.窗體輸入法全角/半角解決方案
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace Lqjt
{
public partial class ImeForm : Form
{
public ImeForm()
{
InitializeComponent();
}
//聲明一些API函數
[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;
protected override void OnActivated(EventArgs e)
{
base.OnActivated(e);
IntPtr HIme = ImmGetContext(this.Handle);
if (ImmGetOpenStatus(HIme)) //如果輸入法處於打開狀態
{
int iMode = 0;
int iSentence = 0;
bool bSuccess = ImmGetConversionStatus(HIme, ref iMode, ref iSentence); //檢索輸入法信息
if (bSuccess)
{
if ((iMode & IME_CMODE_FULLSHAPE) > 0) //如果是全角
ImmSimulateHotKey(this.Handle, IME_CHOTKEY_SHAPE_TOGGLE); //轉換成半角
}
}
}
}//form
}