我要获当前窗体的一个控件(该控件没有提供内对象的坐标)中TextBox的绝对位置或者是这个Textbox中光标的位置也行。
GetCursorPos试过了,不行,从读出的值来看好象是光标在TextBox内的相对位置。
以下函数都试过了,救命啊!
Public Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Public Declare Function SetCursorPos Lib "user32" (ByVal x As Long, ByVal y As Long) As Long
Public Declare Function GetCurrentPositionEx Lib "gdi32" (ByVal hdc As Long, lpPoint As POINTAPI) As Long
Public Declare Function GetCaretPos Lib "user32" (lpPoint As POINTAPI) As Long
GetCursorPos试过了,不行,从读出的值来看好象是光标在TextBox内的相对位置。
以下函数都试过了,救命啊!
Public Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Public Declare Function SetCursorPos Lib "user32" (ByVal x As Long, ByVal y As Long) As Long
Public Declare Function GetCurrentPositionEx Lib "gdi32" (ByVal hdc As Long, lpPoint As POINTAPI) As Long
Public Declare Function GetCaretPos Lib "user32" (lpPoint As POINTAPI) As Long
Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long
Public Sub GetCaretPos(ByVal hwnd5 As Long, LineNo As Long, ColNo As Long)Dim i As Long, j As LongDim lParam As Long, wParam As LongDim k As Longi = SendMessage(hwnd5, EM_GETSEL, wParam, lParam)j = i / 2 ^ 16 '取得目前Caret所在前面有多少个byteLineNo = SendMessage(hwnd5, EM_LINEFROMCHAR, j, 0) '取得前面有多少行LineNo = LineNo + 1k = SendMessage(hwnd5, EM_LINEINDEX, -1, 0)'取得目前caret所在行前面有多少个byteColNo = j - k + 1End Sub
Private Sub Form_Load()Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)Label1.Caption = LineNoLabel2.Caption = ColNo
End Sub
Private Sub Text1_KeyUp(KeyCode As Integer, Shift As Integer)Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)Label1.Caption = LineNoLabel2.Caption = ColNo
End Sub
Private Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)Label1.Caption = LineNoLabel2.Caption = ColNo
End Sub
dim p as pointapi
getcaretpos p
clienttoscreen text1.hwnd, p
此时p就是光标的绝对位置了。
Const EM_LINEFROMCHAR = &HC9
Const EM_LINEINDEX = &HBB Private Declare Function SendMessage Lib "user32" Alias "SendMessageA" _
(ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, _
lParam As Any) As Long Public Sub GetCaretPos(ByVal hwnd5 As Long, LineNo As Long, ColNo As Long)
Dim i As Long, j As Long
Dim lParam As Long, wParam As Long
Dim k As Long
i = SendMessage(hwnd5, EM_GETSEL, wParam, lParam)
j = i / 2 ^ 16 '取得目前Caret所在前面有多少个byte
LineNo = SendMessage(hwnd5, EM_LINEFROMCHAR, j, 0) '取得前面有多少行
LineNo = LineNo + 1
k = SendMessage(hwnd5, EM_LINEINDEX, -1, 0)
'取得目前caret所在行前面有多少个byte
ColNo = j - k + 1
End Sub
Private Sub Form_Load()
Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)
Label1.Caption = LineNo
Label2.Caption = ColNo
End Sub
Private Sub Text1_KeyUp(KeyCode As Integer, Shift As Integer)
Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)
Label1.Caption = LineNo
Label2.Caption = ColNo
End Sub
Private Sub Text1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single)
Dim LineNo As Long, ColNo As Long
Call GetCaretPos(Text1.hwnd, LineNo, ColNo)
Label1.Caption = LineNo
Label2.Caption = ColNo
End Sub
==============================================================================================================
'************************************************************
'功能:取得TextBox、RichTextBox光标所在的行和列
'支持中文,一个汉字算一列
'************************************************************Option ExplicitPublic Const WM_USER = &H400
Public Const EM_EXGETSEL = WM_USER + 52Public Const EM_LINEFROMCHAR = &HC9
Public Const EM_LINEINDEX = &HBB
Public Const EM_GETSEL = &HB0Public Type CHARRANGE
cpMin As Long
cpMax As Long
End TypePublic Type POINTAPI
x As Long
y As Long
End TypePublic Declare Function SendMessage Lib "user32" Alias _
"SendMessageA" (ByVal hWnd As Long, ByVal wMsg As _
Long, ByVal wParam As Long, lParam As Any) As LongPublic Declare Sub CopyMemory Lib "kernel32" Alias _
"RtlMoveMemory" (pDst As Any, pSrc As Any, _
ByVal ByteLen As Long)
'取得光标所在的行和列
Public Function GetCurPos(ByRef TextControl As Control) As POINTAPI
Dim LineIndex As Long
Dim SelRange As CHARRANGE
Dim TempStr As String
Dim TempArray() As Byte
Dim CurRow As Long
Dim CurPos As POINTAPI TempArray = StrConv(TextControl.Text, vbFromUnicode) '取得当前被选中文本的位置 适用于 RichTextBox
'TextControl 用 EM_GETSEL 消息
Call SendMessage(TextControl.hWnd, EM_EXGETSEL, 0, SelRange) '根据参数wParam指定的字符位置返回该字符所在的行号
CurRow = SendMessage(TextControl.hWnd, EM_LINEFROMCHAR, SelRange.cpMin, 0) '取得指定行第一个字符的位置
LineIndex = SendMessage(TextControl.hWnd, EM_LINEINDEX, CurRow, 0) If SelRange.cpMin = LineIndex Then
GetCurPos.x = 1
Else TempStr = String(SelRange.cpMin - LineIndex, 13) '复制当前行开始到选择文本开始的文本
CopyMemory ByVal StrPtr(TempStr), ByVal StrPtr(TempArray) + LineIndex, SelRange.cpMin - LineIndex
TempArray = TempStr '删除无用的信息
ReDim Preserve TempArray(SelRange.cpMin - LineIndex - 1) '转换为 Unicode
TempStr = StrConv(TempArray, vbUnicode) GetCurPos.x = Len(TempStr) + 1
End If
GetCurPos.y = CurRow + 1
End Functionhttp://b4018.xici.net(新任版主,欢迎光临。)
提供:VB、VBA、Office二次开发免费技术支持;
承接:各类项目开发,如MIS系统,WEB网站,中小型应用软件等等;CO.:Vansoft Workroom
MSN:[email protected]
Email:[email protected]
[email protected]
TEL:025-86685867(范,24H)