static控件动态透明显示的完美解决方案

C# 透明控件可以当Label控件使用，也可以改成透明控件Panel。 如果不值8分，你啪我。

计算机软件-商业源码-窗口加入图片及控件透明例子.zip

易语言控件透明化模块，标签 超级链接等。

原tab控件，仿360开关控件版权归原作者! VB控件背景透明代码来自：新浪 “玄雨清风”的博客 感谢以上两位源代码作者 链接:http://pan.baidu.com/s/1hrAEXqG 密码:nfhc '-----------------------以下是转自博客的控件透明源代码(可透明至父窗体或桌面)------------- '添加一个用户控件UserControl,代如下： Option Explicit '实现用户控件UserControl的"伪透明" Private Type POINTAPI X As Long Y As Long End Type Private Type RECT Left As Long Top As Long Right As Long Bottom As Long End Type Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long Private Declare Function ReleaseDC Lib "user32" (ByVal hwnd As Long, ByVal hDC As Long) As Long Private Declare Function BitBlt Lib "gdi32" (ByVal hDestDC As Long, ByVal X As Long, ByVal Y As Long, ByVal nWidth As Long, ByVal nHeight As Long, ByVal hSrcDC As Long, ByVal xSrc As Long, ByVal ySrc As Long, ByVal dwRop As Long) As Long Private Declare Function GetWindowRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long Private Declare Function ScreenToClient Lib "user32" (ByVal hwnd As Long, lpPoint As POINTAPI) As Long Private Declare Function ShowWindow Lib "user32" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long Private Declare Function GetClientRect Lib "user32" (ByVal hwnd As Long, lpRect As RECT) As Long Private Declare Function CreateCompatibleBitmap Lib "gdi32" (ByVal hDC As Long, ByVal nWidth As Long, ByVal nHeight As Long) As Long Private Declare Function CreateCompatibleDC Lib "gdi32" (ByVal hDC As Long) As Long Private Declare Function SelectObject Lib "gdi32" (ByVal hDC As Long, ByVal hObject As Long) As Long Private Declare Function DeleteDC Lib "gdi32" (ByVal hDC As Long) As Long Private Declare Function DeleteObject Lib "gdi32" (ByVal hObject As Long) 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 Private Const WM_ERASEBKGND = &H14 Private Const WM_PAINT = &HF Private Const SRCCOPY = &HCC0020 ' (DWORD) dest = source Public Event MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) Public Event MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single) Public Event MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) Private m_BK As Boolean '复制控件在父窗口的背景 Private Sub CopyParentBackground(ByVal phWnd As Long, ByVal chWnd As Long, ByVal hDestDC As Long) Dim lpRect As RECT, lpPoint As POINTAPI, nWidth As Long, nHeight As Long Dim BitMap As Long, oldBitMap As Long, hDC As Long, memDC As Long Call GetWindowRect(phWnd, lpRect) 'Call GetClientRect(phWnd, lpRect) nWidth = lpRect.Right - lpRect.Left '获取控件的宽度 nHeight = lpRect.Bottom - lpRect.Top '获取控件的高度 hDC = GetDC(0) BitMap = CreateCompatibleBitmap(hDC, nWidth, nHeight) Call ReleaseDC(0, hDC) memDC = CreateCompatibleDC(0) oldBitMap = SelectObject(memDC, BitMap) Call SendMessage(phWnd, WM_ERASEBKGND, memDC, 0) Call SendMessage(phWnd, WM_PAINT, memDC, 0) '至此memDC上已经保存了父窗口的背景内容 '用户可以调用BitBlt(...)等函数拷贝memDC的内容到子窗口的某个区域， '这样就达到了透明效果; Call GetWindowRect(chWnd, lpRect) lpPoint.X = lpRect.Left lpPoint.Y = lpRect.Top Call ScreenToClient(phWnd, lpPoint) '获取控件在父窗口的左上角位置 Call BitBlt(hDestDC, 0, 0, nWidth, nHeight, memDC, lpPoint.X, lpPoint.Y, SRCCOPY) ''''''''''''''''''''''复制背景之后,在这里可以其他事情'''''''''''''''''''''''''''' UserControl.CurrentY = 10 UserControl.Print "透明用户控件" UserControl.Refresh ' Call SelectObject(memDC, oldBitMap) Call DeleteDC(memDC) Call DeleteObject(BitMap) End Sub '复制控件在屏幕的背景 Private Sub CopyScreenBackground(ByVal phWnd As Long, ByVal chWnd As Long, ByVal hDestDC As Long) Dim lpRect As RECT, nWidth As Long, nHeight As Long, hDC As Long Call GetWindowRect(chWnd, lpRect) nWidth = lpRect.Right - lpRect.Left '获取控件的宽度 nHeight = lpRect.Bottom - lpRect.Top '获取控件的高度 ShowWindow chWnd, 0 '隐藏 DoEvents hDC = GetDC(0) Call BitBlt(hDestDC, 0, 0, nWidth, nHeight, hDC, lpRect.Left, lpRect.Top, SRCCOPY) Call ReleaseDC(0, hDC) ShowWindow chWnd, 5 '显示 ''''''''''''''''''''''复制背景之后,在这里可以其他事情'''''''''''''''''''''''''''' UserControl.CurrentY = 10 UserControl.Print "透明用户控件" UserControl.Refresh End Sub Private Sub UserControl_Initialize() UserControl.ScaleMode = vbPixels End Sub Private Sub UserControl_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) RaiseEvent MouseDown(Button, Shift, X, Y) End Sub Private Sub UserControl_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single) RaiseEvent MouseMove(Button, Shift, X, Y) End Sub Private Sub UserControl_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) RaiseEvent MouseUp(Button, Shift, X, Y) CopyBKImage m_BK End Sub Private Sub UserControl_Resize() On Error Resume Next CopyBKImage m_BK End Sub Private Sub UserControl_Show() CopyBKImage m_BK End Sub Public Property Let CopyBKMode(ByVal bkm As Boolean) m_BK = bkm End Property Public Property Let BorderStyle(BStyle As Boolean) If BStyle = True Then UserControl.BorderStyle = 1 Else UserControl.BorderStyle = 0 End If End Property Public Sub Refresh() CopyBKImage m_BK UserControl.Refresh End Sub Private Sub CopyBKImage(Optional ByVal flag As Boolean = False) If flag = True Then CopyScreenBackground UserControl.Parent.hwnd, UserControl.hwnd, UserControl.hDC Else CopyParentBackground UserControl.Parent.hwnd, UserControl.hwnd, UserControl.hDC End If End Sub '''''''''''''''''''''''''''''''调用实例''''''''''''''''''''''''''''''''''''''''''''''' ''''''''''''''''''''''''''''''''Form1代码'''''''''''''''''''''''''''''' Option Explicit Dim LabX As Single, LabY As Single, IsMouseDownLab As Boolean Private Sub ctl1_MouseDown(Button As Integer, Shift As Integer, X As Single, Y As Single) IsMouseDownLab = True LabX = X: LabY = Y End Sub Private Sub ctl1_MouseMove(Button As Integer, Shift As Integer, X As Single, Y As Single) If IsMouseDownLab = True Then '移动ctl1的位置 If Button = 1 Then ctl1.Move ctl1.Left + Me.ScaleX(X - LabX, 3, 3), ctl1.Top + ScaleX(Y - LabY, 3, 3) End If End Sub Private Sub ctl1_MouseUp(Button As Integer, Shift As Integer, X As Single, Y As Single) IsMouseDownLab = False End Sub Private Sub Form_Load() Me.ScaleMode = vbPixels ctl1.CopyBKMode = True '复制控件在屏幕的背景 ctl2.CopyBKMode = False '默认值,复制控件在父窗口的背景 ctl2.BorderStyle = True '有边框 ctl1.BorderStyle = False '无边框 End Sub

原理很简单，就是设置控件的透明度，直到透明度为0后再将控件设置为隐藏即可。动画的过程可以用两种方式来实现，第一是通过定时器，不断的设置控件的透明度，第二是通过QPropertyAnimation来实现，当然，后者会更简单。那么该如何设置控件透明度呢，这里需要用到QGraphicsOpacityEffect类。更多文章请查看http://blog.csdn.net/luoyayun361/

C++ Builder TPanel控件透明源代码，根据http://blog.csdn.net/cczlp/article/details/2542886整理。

代码实现了MiniGUI的模拟触摸屏，按键切换图片，控件透明，适合新手欢迎下载，评论，讨论。

为公司开发的静态控件，解决了所有的透明显示问题 1.动态刷新，文字重叠问题 2.父窗口放大之后，背景不对问题 3.频繁刷新闪动问题。 csdn有个帖子几十页也没解决，足见开发的难度之高。

关于一般的透明效果，这里不多说，相信很多人都会，这种透明效果一般需要设置父控件，是子控件相对于父控件的透明。那么很多人可能更为关心的是多个控件之间的透明效果，比如窗体上有多个PictureBox控件，当这些PictureBox重叠时如何设置为透明，这样的效果估计在项目中会经常用到。本文的目的就是要给大家提供几种参考解决方案。