my god! 这个问题也把我头搞痛了, 我是定位FLEXCELL控件cell格子里光标的位置,建议你用FLEXCELL控件做TextBox,它可定位光标在什么位置(第几个字符),但光标的屏幕坐标 e. 我没试成。FLEXCELL控件有点贵。扯远了。
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Runtime.InteropServices; using System.Text; using System.Windows.Forms;namespace CSWin { public partial class Form1 : Form { const int EM_GETSEL = 0xB0; const int EM_LINEFROMCHAR = 0xC9; const int EM_LINEINDEX = 0xBB; [DllImport("user32.dll", EntryPoint = "SendMessage")] public static extern int SendMessage( int hwnd, int wMsg, int wParam, ref int lParam ); private void GetCaretPos(int TextHwnd, ref int LineNo, ref int ColNo) { int i = 0, j = 0, lParam = 0, wParam = 0, k = 0; i = SendMessage(TextHwnd, EM_GETSEL, wParam, ref lParam); j = i / 65536; LineNo = SendMessage(TextHwnd, EM_LINEFROMCHAR, j, ref lParam) + 1; k = SendMessage(TextHwnd, EM_LINEINDEX, -1, ref lParam); ColNo = j - k + 1; } public Form1() { InitializeComponent(); } private void button1_Click(object sender, EventArgs e) { int lineNo = 0, colNo = 0; GetCaretPos(this.textBox1.Handle.ToInt32(), ref lineNo, ref colNo); this.label1.Text = string.Format("Line:{0}, Col:{1}", lineNo, colNo); } } }
这个问题也把我头搞痛了,
我是定位FLEXCELL控件cell格子里光标的位置,建议你用FLEXCELL控件做TextBox,它可定位光标在什么位置(第几个字符),但光标的屏幕坐标
e. 我没试成。FLEXCELL控件有点贵。扯远了。
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Runtime.InteropServices;
using System.Text;
using System.Windows.Forms;namespace CSWin
{
public partial class Form1 : Form
{
const int EM_GETSEL = 0xB0;
const int EM_LINEFROMCHAR = 0xC9;
const int EM_LINEINDEX = 0xBB;
[DllImport("user32.dll", EntryPoint = "SendMessage")]
public static extern int SendMessage(
int hwnd,
int wMsg,
int wParam,
ref int lParam
);
private void GetCaretPos(int TextHwnd, ref int LineNo, ref int ColNo)
{
int i = 0, j = 0, lParam = 0, wParam = 0, k = 0;
i = SendMessage(TextHwnd, EM_GETSEL, wParam, ref lParam);
j = i / 65536;
LineNo = SendMessage(TextHwnd, EM_LINEFROMCHAR, j, ref lParam) + 1;
k = SendMessage(TextHwnd, EM_LINEINDEX, -1, ref lParam);
ColNo = j - k + 1;
}
public Form1()
{
InitializeComponent();
} private void button1_Click(object sender, EventArgs e)
{
int lineNo = 0, colNo = 0;
GetCaretPos(this.textBox1.Handle.ToInt32(), ref lineNo, ref colNo);
this.label1.Text = string.Format("Line:{0}, Col:{1}", lineNo, colNo);
}
}
}
如果没有使用ClientToScreen 这个api得到 当前控件在屏幕上的绝对座标~然后再计算在richTextBox的光标位置
http://www.itwen.com/07prog/02cc/cc20060122/21995.html算出来屏幕座标