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大小: 42KB文件類型: .zip金幣: 2下載: 0 次發(fā)布日期: 2021-06-05
- 語(yǔ)言: C#
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一個(gè)背景透明Textbox控件的源代碼,很不錯(cuò)的東西

代碼片段和文件信息
using?System;
using?System.Collections;
using?System.ComponentModel;
using?System.Drawing;
using?System.Data;
using?System.Windows.Forms;
using?System.Drawing.Imaging;
namespace?ZBobb
{
///?
///?AlphaBlendTextBox:?A?.Net?textbox?that?can?be?translucent?to?the?background.
///?(C)?2003?Bob?Bradley?/?ZBobb@hotmail.com
///?
///?
public?class?AlphaBlendTextBox?:?System.Windows.Forms.TextBox
{
#region?private?variables
private?uPictureBox?myPictureBox;
private??bool???myUpToDate?=?false;
private??bool???myCaretUpToDate?=?false;
private??Bitmap?myBitmap;
private??Bitmap?myAlphaBitmap;
private?int?myFontHeight?=?10;
private?System.Windows.Forms.Timer?myTimer1;
private?bool?myCaretState?=?true;
private?bool?myPaintedFirstTime?=?false;
private?Color?myBackColor?=?Color.White;
private?int?myBackAlpha?=?10;
///??
///?Required?designer?variable.
///?
private?System.ComponentModel.Container?components?=?null;
#endregion?//?end?private?variables
#region?public?methods?and?overrides
public?AlphaBlendTextBox()
{
//?This?call?is?required?by?the?Windows.Forms?Form?Designer.
InitializeComponent();
//?TODO:?Add?any?initialization?after?the?InitializeComponent?call
this.BackColor?=?myBackColor;?
this.Setstyle(Controlstyles.UserPaintfalse);
this.Setstyle(Controlstyles.AllPaintingInWmPainttrue);
this.Setstyle(Controlstyles.DoubleBuffertrue);
myPictureBox?=?new?uPictureBox();
this.Controls.Add(myPictureBox);
myPictureBox.Dock?=?Dockstyle.Fill;
}
protected?override?void?onresize(EventArgs?e)
{
base.onresize?(e);
this.myBitmap?=?new?Bitmap(this.ClientRectangle.Widththis.ClientRectangle.Height);//(this.Widththis.Height);
this.myAlphaBitmap?=?new?Bitmap(this.ClientRectangle.Widththis.ClientRectangle.Height);//(this.Widththis.Height);
myUpToDate?=?false;
this.Invalidate();
}
//Some?of?these?should?be?moved?to?the?WndProc?later
protected?override?void?onkeydown(KeyEventArgs?e)
{
base.onkeydown?(e);
myUpToDate?=?false;
this.Invalidate();
}
protected?override?void?onkeyup(KeyEventArgs?e)
{
base.onkeyup?(e);
myUpToDate?=?false;
this.Invalidate();
}
protected?override?void?onkeypress(KeyPressEventArgs?e)
{
base.onkeypress?(e);
myUpToDate?=?false;
this.Invalidate();
}
protected?override?void?onmouseup(MouseEventArgs?e)
{
base.onmouseup?(e);
this.Invalidate();
}
protected?override?void?OnGiveFeedback(GiveFeedbackEventArgs?gfbevent)
{
base.OnGiveFeedback?(gfbevent);
myUpToDate?=?false;
this.Invalidate();
}
protected?override?void?onmouseleave(EventArgs?e)
{
//found?this?code?to?find?the?current?cursor?location
//at?http://www.syncfusion.com/FAQ/WinForms/FAQ_c50c.asp#q597q
Point?ptCursor?=?Cursor
?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????文件????????4975??2003-06-24?20:51??ABTestCS\ABTestCS.csproj
?????文件????????1884??2003-06-24?21:28??ABTestCS\ABTestCS.csproj.user
?????文件????????1078??2003-06-23?09:00??ABTestCS\App.ico
?????文件????????2426??2003-06-23?09:00??ABTestCS\AssemblyInfo.cs
?????文件????????8481??2003-06-23?15:29??ABTestCS\bob_smaller1.jpg
?????文件????????7340??2003-06-24?21:08??ABTestCS\Form1.cs
?????文件???????26898??2003-06-24?21:08??ABTestCS\Form1.resx
?????文件?????????901??2003-06-22?17:54??ABTestVB\ABTestVB.sln
?????文件????????4426??2003-06-24?21:27??ABTestVB\ABTestVB.vbproj
?????文件????????1974??2003-06-24?21:27??ABTestVB\ABTestVB.vbproj.user
?????文件????????1044??2003-06-22?17:54??ABTestVB\AssemblyInfo.vb
?????文件????????9993??2003-06-24?21:27??ABTestVB\Form1.resx
?????文件????????2614??2003-06-24?21:27??ABTestVB\Form1.vb
?????文件???????13273??2003-06-24?21:24??AlphaBlendTextBox.cs
?????文件????????4844??2003-06-22?18:22??AlphaBlendTextBox.csproj
?????文件????????1804??2003-06-24?21:28??AlphaBlendTextBox.csproj.user
?????文件????????1733??2002-01-30?00:04??AlphaBlendTextBox.resx
?????文件????????1425??2003-06-23?09:07??AlphaBlendTextBox.sln
?????文件????????2590??2003-06-22?22:49??AssemblyInfo.cs
?????文件?????????539??2003-06-24?21:31??ReadMe.txt
?????文件????????3044??2003-06-24?21:25??win32.cs
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