C#下實現空白窗體上中文輸入
關鍵字:類PS的文字工具,中文輸入.重複截取中文
最近在研究做一個類PS的文字工具N多的資料,問了N多個人,總算功夫不負有人心.終於給弄出來了.寫出來給大家一起討論.
在空白窗體上打開輸入法,在C#裡的空白視窗是無論如何也是打不開輸入法.設定了this.ImeMode= ImeMode.NoControl也是無法開啟輸入法的錄影視窗.去Microsoft 開發論壇上問了一些問題.感謝週雪峰版主與Riquel_Dong 版主給的指點.用了API函數: ImmAssociateContext(IntPtr hWnd, IntPtr hIMC);終於把輸入法給調了出來,它的功能是把輸入與指定的視窗進行關聯.
:
f (m.Msg == WM_IME_SETCONTEXT && m.WParam.ToInt32() == 1)
ImmAssociateContext(this.Handle, m_hImc );
}
呢.
當打開輸入法輸入文字時,會發送WM_IME_CHAR的消息.我們在這個消息下處理下就可以得到漢字了
: IntPtr hIMC, int dwIndex, StringBuilder lpBuf, int dwBufLen);取得錄影視窗上輸入的漢字或NUICODE類別的字.當然,這裡就不研究別的了.只說漢字問題.取字的代碼如下:
case WM_IME_CHAR:
int size = ImmGetCompositionString(m_hImc, GCS_COMPSTR, null, 0);
izeof( Char);
sb.Append(str.To MessageBox.Show( str.ToString());
isShowChina = true;
break;
OK,.好像是大功告服務計劃」我的天啊,問題出在哪裡呢.
去查了一下MSDN.對WM_IME_CHAR有這樣的說明:
ble and the application passes this message to DefWindowProc
是不是問題就出在這裡了.是發送訊息兩次的問題.
,
方案:加上判斷
if (m.WParam.ToInt32() == PM_REMOVE)
測試.終於沒有問題了
代碼貼文上
onentModel;
using System .Drawing;
using System.Data;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;Windows.Forms;
using System.Runtime.InteropServices; public partial class UserControl1 : UserControl
{
IntPtr m_hImc;
bool isShowChina = false;
private const int WM_IME_CHAR = 0x0286;
private const int WM_IME_COMPOSITION = 0x010F;
[DllImport (" Imm32.dll")]
public static extern IntPtr ImmGetContext(IntPtr hWnd);
[DllImport("Imm32.dll")]
public static extern IntPtr ImmAssociateContext(IntPtr hndIM)Int [DllImport(" imm32 .dll")]
static extern int ImmGetCompositionString( IntPtr hIMC, int dwIndex, StringBuilder lpBuf, int dwBufLen);
private int GRESCS private const HC_ ACTION = 0;
private const PM_REMOVE = 0x0001 ;
StringBuilder sb = new StringBuilder();
,
public UserControl1()
{
InitializeComponent ( );
}
{
m_hI mc = ImmGetContext(this.Handle);
}
受保護訊息m)
{
base.WndProc(ref m);
if == 1)
{
ImmAssociateContext(this.Handle, m_hImc ) ;
}
case WM_ CHAR:
對應 Key | ModifierKeys);
char a = (char)e.KeyData; // sb.Append(a);
isShowChina = false;
break;
if (m.WParam.ToInt32() == PM_REMOVE ) //如果不做這個判斷，會印出重複的中文
{
int size = Imm GetCompositionString(m_hImc, GCS_COMPSTR, null, 0); sizeof (Char);
ImmGetCompositionString(m_hI sb.Append(str.ToString());
MessageBox.Show intoText();
isShowChina = true;
break;
///
/// 列印文字
///
/// intoText()//
{
Graphics g = this.CreateGraphics();
10);
}
}
}
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