20

我正在开发一个 WinForms SmartClient 应用程序,该应用程序使用了很多 RichTextBox 控件——出于各种原因,其中一些控件代替了常规的 TextBox。不幸的是,RichTextBox 绘制了丑陋的 Win95 3D 边框,而不是主题 XP 或 Vista 风格的边框。

有谁知道将主题边框应用于 RichTextBox 的方法?我不介意为此目的对它们进行子类化。

谢谢!

4

5 回答 5

39

这确实是一种 hack,但您可以做的一件事是将 Panel 控件放到页面上。给它一个 FixedSingle 的 BorderStyle(默认为 None。)

将 RichTextBox 拖放到面板中并将 BorderStyle 设置为无。然后将 RichTextBox 的 Dock 属性设置为 Fill。

这将为您提供一个带有扁平边框的 RichTextBox。

于 2009-09-23T19:27:03.850 回答
2

过去,我不得不使用一个面板来解决这个问题,其中文本框是内部的一个组件,并且 DockPadding 设置为 3 或 4 像素。然后我将该面板设置为单个像素。

我一直觉得这真的很烦人!

于 2009-03-31T08:03:16.763 回答
1

这是 VB.NET 代码,它用 -1 膨胀非客户区,然后用 caded 蓝色填充非客户区。可以使用 SharpDevelop 4.4 将其转换为 C#。我从这篇文章中得到了代码:

http://www.codeproject.com/Articles/13723/Themed-RichTextBox-A-RichTextBox-with-XP-styled-bo

Imports System.Runtime.InteropServices
Imports System.Windows.Forms
Imports System.Windows.Forms.VisualStyles
Imports System.Drawing
Imports System.Diagnostics

Public Class FlatRichTextBox
    Inherits RichTextBox

    Private BorderRect As RECT

    Sub New()
        If VisualStyleInformation.IsEnabledByUser Then
            BorderStyle = BorderStyle.None
        End If
    End Sub

    Protected Overrides Sub WndProc(ByRef m As Message)
        Const WM_NCPAINT = &H85
        Const WM_NCCALCSIZE = &H83
        Const WM_THEMECHANGED = &H31A

        Select Case m.Msg
            Case WM_NCPAINT
                WmNcpaint(m)
            Case WM_NCCALCSIZE
                WmNccalcsize(m)
            Case WM_THEMECHANGED
                UpdateStyles()
            Case Else
                MyBase.WndProc(m)
        End Select
    End Sub

    Private Sub WmNccalcsize(ByRef m As Message)
        MyBase.WndProc(m)

        If Not VisualStyleInformation.IsEnabledByUser Then Return

        Dim par As New NCCALCSIZE_PARAMS()
        Dim windowRect As RECT

        If m.WParam <> IntPtr.Zero Then
            par = CType(Marshal.PtrToStructure(m.LParam, GetType(NCCALCSIZE_PARAMS)), NCCALCSIZE_PARAMS)
            windowRect = par.rgrc0
        End If

        Dim clientRect = windowRect

        clientRect.Left += 1
        clientRect.Top += 1
        clientRect.Right -= 1
        clientRect.Bottom -= 1

        BorderRect = New RECT(clientRect.Left - windowRect.Left,
                              clientRect.Top - windowRect.Top,
                              windowRect.Right - clientRect.Right,
                              windowRect.Bottom - clientRect.Bottom)

        If m.WParam = IntPtr.Zero Then
            Marshal.StructureToPtr(clientRect, m.LParam, False)
        Else
            par.rgrc0 = clientRect
            Marshal.StructureToPtr(par, m.LParam, False)
        End If

        Const WVR_HREDRAW = &H100
        Const WVR_VREDRAW = &H200
        Const WVR_REDRAW = (WVR_HREDRAW Or WVR_VREDRAW)

        m.Result = New IntPtr(WVR_REDRAW)
    End Sub

    Private Sub WmNcpaint(ByRef m As Message)
        MyBase.WndProc(m)

        If Not VisualStyleInformation.IsEnabledByUser Then Return

        Dim r As RECT
        GetWindowRect(Handle, r)

        r.Right -= r.Left
        r.Bottom -= r.Top
        r.Top = 0
        r.Left = 0

        r.Left += BorderRect.Left
        r.Top += BorderRect.Top
        r.Right -= BorderRect.Right
        r.Bottom -= BorderRect.Bottom

        Dim hDC = GetWindowDC(Handle)
        ExcludeClipRect(hDC, r.Left, r.Top, r.Right, r.Bottom)

        Using g = Graphics.FromHdc(hDC)
            g.Clear(Color.CadetBlue)
        End Using

        ReleaseDC(Handle, hDC)
        m.Result = IntPtr.Zero
    End Sub

    <DllImport("user32.dll")>
    Public Shared Function GetWindowRect(hWnd As IntPtr, ByRef lpRect As RECT) As Boolean
    End Function

    <DllImport("user32.dll")>
    Public Shared Function GetWindowDC(hWnd As IntPtr) As IntPtr
    End Function

    <DllImport("user32.dll")>
    Public Shared Function ReleaseDC(hWnd As IntPtr, hDC As IntPtr) As Integer
    End Function

    <DllImport("gdi32.dll")>
    Public Shared Function ExcludeClipRect(hdc As IntPtr, nLeftRect As Integer, nTopRect As Integer, nRightRect As Integer, nBottomRect As Integer) As Integer
    End Function

    <StructLayout(LayoutKind.Sequential)>
    Public Structure NCCALCSIZE_PARAMS
        Public rgrc0, rgrc1, rgrc2 As RECT
        Public lppos As IntPtr
    End Structure

    <StructLayout(LayoutKind.Sequential)>
    Public Structure RECT
        Public Left As Integer
        Public Top As Integer
        Public Right As Integer
        Public Bottom As Integer

        Public Sub New(left As Integer, top As Integer, right As Integer, bottom As Integer)
            Me.Left = left
            Me.Top = top
            Me.Right = right
            Me.Bottom = bottom
        End Sub
    End Structure
End Class
于 2015-02-03T23:15:26.470 回答
0

我想这有点太晚了,但尽管如此。

您始终可以使用 P/Invoke 并使用 UXTheme API 子类化您的 RichEdit,这样您就可以根据需要禁用/启用它。

我认为 CodeProject 有一个使用 UXTheme/Visual Styles API 的 Richedit 控件

随着 Windows 8 的推出,视觉样式 UXTheme API 可能会过时或弃用

于 2012-08-30T18:09:50.853 回答
-1

摆脱 3D 边框的最简单方法是设置另一个:

richTextBox.BorderStyle = BorderStyle.FixedSingle;

-BorderStyleFixedSingle最接近FlatStyle例如 Button

于 2016-03-31T12:24:19.857 回答