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vb.net鼠標(biāo)取詞,電腦鼠標(biāo)取詞翻譯

vb如何實(shí)現(xiàn)屏幕取詞

用API函數(shù)GetWindowText。

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GetWindowText

VB聲明

Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hwnd As Long, ByVal lpString As String, ByVal cch As Long) As Long

說明

取得一個(gè)窗體的標(biāo)題文字,或者一個(gè)控件的內(nèi)容

返回值:Long,復(fù)制到lpString的字串長(zhǎng)度;不包括空中止字符。會(huì)設(shè)置GetLastError

參數(shù)表

hwnd: Long,欲獲取文字的那個(gè)窗口的句柄

lpString: String,預(yù)定義的一個(gè)緩沖區(qū),至少有cch+1個(gè)字符大小;隨同窗口文字載入

cch: Long,lpString緩沖區(qū)的長(zhǎng)度

注解

不能用它從另一個(gè)應(yīng)用程序的編輯控件中獲取文字

我要補(bǔ)充以下,如果不知道句柄,那么可以用For計(jì)數(shù)循環(huán)進(jìn)行窮舉。

VB 屏幕取詞

如果你裝了金山詞霸,可以這樣

從“引用”中添加XdictGrb.dll

Option Explicit

Implements IXDictGrabSink

Private gp As GrabProxyPrivate Sub Form_Load()

Set gp = New GrabProxy

With gp

.GrabEnabled = True '是否有效

.GrabInterval = 30 '指定抓取時(shí)間間隔

.GrabMode = XDictGrabMouse '模式(鼠標(biāo)是否加按鍵)

.AdviseGrab Me '接口指向自身End WithEnd SubPrivate Sub Form_Unload(Cancel As Integer)

Set gp = Nothing

End Sub

Private Function IXDictGrabSink_QueryWord(ByVal WordString As String, ByVal lCursorX As Long, ByVal lCursorY As Long, ByVal SentenceString As String, lLoc As Long, lStart As Long) As Long

Label1.Caption = "當(dāng)前坐標(biāo):" "(" lCursorX "," lCursorY ")"

Label2.Caption = "當(dāng)前語(yǔ)句:" SentenceString

Label3.Caption = "當(dāng)前字符:" Mid(SentenceString, lLoc + 1, 1000)

End Function

vb.net textbox1.text 鼠標(biāo)一點(diǎn) 全部選擇

Private?Sub?TextBox1_Click(sender?As?Object,?e?As?EventArgs)?Handles?TextBox1.Click

TextBox1.SelectAll()

TextBox1.ForeColor?=?Color.Blue

End?Sub

如果不想每次都這樣的話,就加一個(gè)if判斷TextBox1.ForeColor 是否是Color.Blue就可以了

vb.net如何讀取WebBrowser中鼠標(biāo)選擇的文字

添加引用:Microsoft.mshtml,然后代碼如下即可:

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click

'獲取用戶選中的文字

Dim htmlDocument As mshtml.IHTMLDocument2 'IHTMLDocument2

htmlDocument = WebBrowser1.Document.DomDocument

Dim currentSelection As mshtml.IHTMLSelectionObject

currentSelection = htmlDocument.selection

Dim range As mshtml.IHTMLTxtRange

If Not (currentSelection Is Nothing) Then

range = currentSelection.createRange()

If Not (range Is Nothing) Then

MsgBox(range.text)

'tbKeyWord.Text = range.text;

End If

End If

End Sub

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