Powershell:两个Richtextbox的同步滚动 [英] Powershell: Sync Scrolling of two Richtextboxes
问题描述
我想同步两个 Winforms
Richtextboxes的滚动.当RTB2受到限制时,RTB1始终需要精确对齐.我尝试在此处 LINK(第二个答案)转换此c#代码.,但到目前为止失败了.所以我需要帮助.现在,它会产生多个错误:
I want to sync the scrolling of two Winforms
Richtextboxes. When RTB2 gets scolled, RTB1 needs to be exactly aligned all the time.
I tried to convert this c#-Code here LINK (second answer), but failed so far. So I need help.
Right now it produces multiple errors:
Type [ScrollBarCommands] was not found...
Type [ScrollBarType] was not found....
Type [Message] was not found...
Also "illegal conversions" and so on.
这是一个示例脚本:
[void][System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms")
$form = New-Object system.Windows.Forms.Form
$form.size = "400,400"
$rtb1 = New-Object system.Windows.Forms.RichTextBox
$rtb1.size = "190,350"
$rtb1.location = "200,1"
$rtb1.text = (1..300 | out-string)
$form.controls.add($rtb1)
$rtb2 = New-Object system.Windows.Forms.RichTextBox
$rtb2.size = "190,350"
$rtb2.location = "1,1"
$rtb2.text = (1..300 | out-string)
$rtb2.scrollbars = "none"
$form.controls.add($rtb2)
$code = @'
public enum ScrollBarType : uint {
SbHorz = 0,
SbVert = 1,
SbCtl = 2,
SbBoth = 3
}
public enum Message : uint {
WM_VSCROLL = 0x0115
}
public enum ScrollBarCommands : uint {
SB_THUMBPOSITION = 4
}
[DllImport( "User32.dll" )]
public extern static int GetScrollPos( IntPtr hWnd, int nBar );
[DllImport( "User32.dll" )]
public extern static int SendMessage( IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam );
'@
Add-Type -Name WinUtils -MemberDefinition $code -Namespace User32
$rtb1.add_VScroll({
[uint32]$nPos = [User32.WinUtils]::GetScrollPos( $rtb1.Handle, [ScrollBarType]::SbVert )
[uint32]$npos = $nPos -shl 16
[uint32]$wParam = [ScrollBarCommands]::SB_THUMBPOSITION -bor $nPos
[User32.WinUtils]::SendMessage( $rtb2.Handle, [Message]::WM_VSCROLL, $wParam , [ref]0)
})
$form.showdialog()
编辑者,请注意:这不是重复的,这是关于** Powershell 的.:)**
推荐答案
ScrollBarType
, ScrollBarCommands
和 Message
是的成员User32.WinUtils
命名空间.另外, ptr
应该是 System.IntPtr
.
ScrollBarType
, ScrollBarCommands
, and Message
are members of User32.WinUtils
namespace. Also, ptr
should be System.IntPtr
.
要在拖动滚动条的同时滚动 $ rtb2
(而不仅仅是释放鼠标时),您必须使用 GetScrollInfo
To scroll $rtb2
while dragging the scrollbar (and not just when mouse is released), you have to use GetScrollInfo
修复了箭头滚动按钮不起作用
EDIT 2: Fixed arrow scroll buttons not working
修复了其他错误.重组代码.
EDIT 3: Fixed other bugs. Restructured code.
$typeDef = @"
using System;
using System.Windows.Forms;
using System.Runtime.InteropServices;
public enum ScrollBarType : uint {
SbHorz = 0,
SbVert = 1,
SbCtl = 2,
SbBoth = 3
}
public enum Message : uint {
WmVScroll = 0x0115
}
public enum ScrollBarCommands : uint {
ThumbPosition = 4,
ThumbTrack = 5
}
[Flags()]
public enum ScrollBarInfo : uint {
Range = 0x0001,
Page = 0x0002,
Pos = 0x0004,
DisableNoScroll = 0x0008,
TrackPos = 0x0010,
All = ( Range | Page | Pos | TrackPos )
}
public class CustomRichTextBox : RichTextBox {
public Control Buddy { get; set; }
public bool ThumbTrack = false;
[StructLayout( LayoutKind.Sequential )]
public struct ScrollInfo {
public uint cbSize;
public uint fMask;
public int nMin;
public int nMax;
public uint nPage;
public int nPos;
public int nTrackPos;
};
[DllImport( "User32.dll" )]
public extern static int SendMessage( IntPtr hWnd, uint msg, IntPtr wParam, IntPtr lParam );
[DllImport( "User32.dll" )]
public extern static int GetScrollInfo( IntPtr hWnd, int fnBar, ref ScrollInfo lpsi );
public void CustomVScroll() {
int nPos;
ScrollInfo scrollInfo = new ScrollInfo();
scrollInfo.cbSize = (uint)Marshal.SizeOf( scrollInfo );
if (ThumbTrack) {
scrollInfo.fMask = (uint)ScrollBarInfo.TrackPos;
GetScrollInfo( this.Handle, (int)ScrollBarType.SbVert, ref scrollInfo );
nPos = scrollInfo.nTrackPos;
} else {
scrollInfo.fMask = (uint)ScrollBarInfo.Pos;
GetScrollInfo( this.Handle, (int)ScrollBarType.SbVert, ref scrollInfo );
nPos = scrollInfo.nPos;
}
nPos <<= 16;
uint wParam = (uint)ScrollBarCommands.ThumbPosition | (uint)nPos;
SendMessage( Buddy.Handle, (int)Message.WmVScroll, new IntPtr( wParam ), new IntPtr( 0 ) );
}
protected override void WndProc( ref System.Windows.Forms.Message m ) {
if ( m.Msg == (int)Message.WmVScroll ) {
if ( ( m.WParam.ToInt32() & 0xFF ) == (int)ScrollBarCommands.ThumbTrack ) {
ThumbTrack = true;
} else {
ThumbTrack = false;
}
}
base.WndProc( ref m );
}
}
"@
$assemblies = ("System.Windows.Forms", "System.Runtime.InteropServices")
Add-Type -ReferencedAssemblies $assemblies -TypeDefinition $typeDef -Language CSharp
### Form
$form = New-Object System.Windows.Forms.Form
$form.Size = "400,400"
### Rich text box 1 (Synchronized - master)
$rtb1 = New-Object CustomRichTextBox
$rtb1.Size = "190,350"
$rtb1.Location = "200,1"
$rtb1.Text = (1..300 | Out-String)
$form.Controls.Add($rtb1)
### Rich text box 2 (Synchronized - slave)
$rtb2 = New-Object system.Windows.Forms.RichTextBox
$rtb2.Size = "190,350"
$rtb2.Location = "1,1"
$rtb2.Text = (1..300 | Out-String)
$rtb2.ScrollBars = "none"
$form.Controls.Add($rtb2)
### Synchronization setup
$rtb1.Buddy = $rtb2
$rtb1.Add_VScroll({
$this.CustomVScroll()
})
### Run
$form.ShowDialog()
这篇关于Powershell:两个Richtextbox的同步滚动的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!