当更改某些非文本字符的字体时,如何使TRichEdit表现得像Windows7上的写字板?
在当更改某些非文本字符的字体时,如何使TRichEdit表现得像Windows7上的写字板?,windows,delphi,fonts,trichedit,wordpad,Windows,Delphi,Fonts,Trichedit,Wordpad,在Sertac Akyuz的帮助下,直接原因似乎与\bullet的字符集有关:在我的本地化窗口中,通过键入Alt(0149)输入的\bullet总是得到\fcharset134,并且尝试通过EM\u SETCHARFORMAT更改其字体总是失败(当然,颜色、大小、样式确实可以更改,但字体系列名称不能更改) 因此,最简单的解决方法是首先重置字符集,然后更改字体 注意:应使用RichEdit(版本>=4.1) 注意:RichEdit版本可以在MSDN、Murray Sargent的MSDN博客和上找
Sertac Akyuz
的帮助下,直接原因似乎与\bullet
的字符集有关:在我的本地化窗口中,通过键入Alt(0149)输入的\bullet
总是得到\fcharset134
,并且尝试通过EM\u SETCHARFORMAT
更改其字体总是失败(当然,颜色、大小、样式确实可以更改,但字体系列名称不能更改)
因此,最简单的解决方法是首先重置字符集,然后更改字体
注意:应使用RichEdit(版本>=4.1)
注意:RichEdit版本可以在MSDN、Murray Sargent的MSDN博客和上找到。后面的页面提到了高于4.1的RichEdit版本。作为测试,我将Office 2010附带的RICHED20.DLL和应用程序复制到Windows 2000上,一切都很好
procedure TMainForm.ButtonFontClick(Sender: TObject);
var
format: TCharFormat2;
begin
if dlgFontCdxTxt.Execute then
begin
FillChar(format, sizeof(format), 0);
format.cbSize:= Sizeof(format);
format.dwMask:= CFM_CHARSET;
format.bCharSet := 1; // or 0;
redtTextBlock.Perform(EM_SETCHARFORMAT, SCF_SELECTION, Integer(@format));
FillChar(format, sizeof(format), 0);
format.cbSize:= Sizeof(format);
format.dwMask:= CFM_FACE;
StrPLCopy(format.szFaceName, dlgFontCdxTxt.Font.Name, High(format.szFaceName));
redtTextBlock.Perform(EM_SETCHARFORMAT, SCF_SELECTION, Integer(@format));
end;
redtTextBlock.SetFocus;
end;
==================================================
据介绍,WordPad
分别在Windows 95、98和Windows 2000中使用了Microsoft的RichEdit
控件,版本分别为1.0、2.0和3.0。在Windows XP SP1和更高版本中,WordPad使用了RichEdit 4.1,包括Windows 7
假设在写字板中编辑的rtf文档包含非文本字符Alt(0149),项目符号点•
(或U+2022)
在Windows 2000 SP4或XP SP2中,该圆点的字体只能采用写字板的默认字体。也就是说,不能在写字板中以交互方式更改该圆点的字体
但是,在Windows7SP1中,可以通过先更改为“Arial Unicode MS”
,然后无限次更改为任何所需的字体来更改其字体
此外,在Windows7中使用写字板创建的包含不同字体点的写字板文档可以在Windows2000或XP中的写字板中正确打开和查看
TRichEdit(Delphi XE,Windows 7)还可以通过TRichEdit.Lines.LoadFromFile
打开和查看在Windows 7中使用写字板创建的写字板文档
以交互方式,TRichEdit(Delphi XE,Windows 7)允许将圆点的字体更改为“Arial Unicode MS”。但是,不能在TRichEdit中进一步以交互方式更改为其他字体。
因此,我想知道(1)在Windows7中写字板行为不同的原因,(2)是否有可能使TRichEdit的行为相同
注:你可能需要多次键入Alt(0149)才能在写字板中获得点。按照建议,键入2022和Alt+x总是有效的
附言:你需要“激活”写字板中的字体,如答案中所述
附言:在Word中,可以随时将圆点更改为不同的字体
sample.rtf(粘贴到纯文本文件中,然后将扩展名更改为rtf以使用)
uMainForm.dfm以查看TRichEdit行的格式
umaninform.pas以查看TRichEdit行的格式
unit;
接口
使用
继续,
窗口、消息、系统工具、变体、类、图形、控件、窗体、,
对话框、StdCtrls、ComCtrls、ExtCtrls;
类型
TCdxmlStyle=class
公众的
字体名称:字符串;
Str:字符串;
结束;
TCdxmlText=class
公众的
风格:TObjectList;
构造函数创建;
结束;
TMainForm=类(TForm)
redtTextBlock:TRichEdit;
mmo1:TMemo;
pnlBtn:TPanel;
PNL客户:TPanel;
按钮1:t按钮;
按钮2:t按钮;
dlgFontCdxTxt:TFontDialog;
程序按钮1点击(发送方:ToObject);
程序按钮2点击(发送者:对象);
过程表单创建(发送方:ToObject);
私有的
{私有声明}
程序TestLoadFromFile;
程序分析编辑;
公众的
{公开声明}
结束;
变量
主要形式:TMA通知;
实施
{$R*.dfm}
使用
RichEdit,StrUtils;
{TCdxmlText}
构造函数TCdxmlText.Create;
开始
样式:=TObjectList.Create;
结束;
变量
l_HiddenRichEdit:TRichEdit;
{tma}
程序TMAInformCreate(发送方:ToObject);
开始
TestLoadFromFile;
分析编辑;
结束;
程序TMainForm.按钮2点击(发送方:TObject);
变量
格式:TCharFormat2;
开始
如果是dlgFontCdxTxt.Execute,则
开始
FillChar(格式,sizeof(格式),0);
format.cbSize:=Sizeof(格式);
格式.dwMask:=CFM_面;
StrPLCopy(format.szFaceName,dlgFontCdxTxt.Font.Name,High(format.szFaceName));
执行(EM_SETCHARFORMAT,SCF_SELECTION,Integer(@format));
结束;
redtTextBlock.SetFocus;
结束;
程序TMainForm.按钮1单击(发件人:ToObject);
开始
分析编辑;
结束;
程序tmalinform.TestLoadFromFile;
开始
redtTextBlock。清除;
redtTextBlock.Lines.LoadFromFile('sample.rtf');
结束;
程序TMainForm.AnalyzeRichEdit;
变量
l_MemStream:tmemorestream;
l_格式:TCharFormat2;
一、 J:整数;
l_CdxmlStyle,l_CdxmlStyleWorker:TCdxmlStyle;
l_StyleFont:string;
l_CdxmlText:TCdxmlText;
开始
l_CdxmlStyle:=nil;
l_CdxmlStyleWorker:=零;
mmo1.清晰;
l_MemStream:=TMemoryStream.Create;
redtTextBlock.Lines.SaveToStream(l_MemStream);
l_MemStream.Seek(0,从开始);
l_HiddenRichEdit.Lines.LoadFromStream(l_MemStream);
l_CdxmlText:=TCdxmlText.Create;
对于I:=0到长度(TrimRight(l_HiddenRichEdit.Text))-1 do
开始
l_CdxmlStyleWorker:=TCdxmlStyle.Create;
FillChar(l_格式,sizeof(l_格式),0);
l_格式.cbSize:=Sizeof(l_格式);
l_格式.dwMask:=CFM_面;
l_HiddenRichEdit.SelStart:=I;
l_HiddenRichEdit.SelLength:=1;
l_HiddenRichEdit.Perform(EM_GETCHARFORMAT,SCF_SELECTION,Integer(@l_Format));
l_CdxmlStyleWorker.FontName:=l_Format.szFaceName;
l_CdxmlStyleWorker.Str:=AnsiReplaceStr(l_HiddenRichEdit.SelText,#13,#13#10);
如果l_CdxmlStyle=nil,则
开始
l_CdxmlText.Styles.Add(l_CdxmlStyleWorker);
l_CdxmlStyle:=l_CdxmlStyleWorker;
结束
else if(l_CdxmlStyleWorker.FontNa
{\rtf1\ansi\ansicpg936\deff0\deflang1033\deflangfe2052{\fonttbl{\f0\fswiss\fprq2\fcharset134 Arial Unicode MS;}{\f1\fnil\fcharset0 Arial Unicode MS;}{\f2\froman\fprq2\fcharset0 Times New Roman;}{\f3\fscript\fprq2\fcharset0 Comic Sans MS;}{\f4\fnil\fcharset0 Comic Sans MS;}{\f5\fmodern\fprq1\fcharset0 Consolas;}{\f6\fnil\fcharset0 Consolas;}{\f7\fmodern\fprq1\fcharset0 Lucida Console;}{\f8\fnil\fcharset0 Lucida Console;}{\f9\froman\fprq2\fcharset2 Symbol;}{\f10\froman\fprq2\fcharset0 Symbol;}{\f11\fnil\fcharset134 \'cb\'ce\'cc\'e5;}}
{\*\generator Msftedit 5.41.21.2510;}\viewkind4\uc1\pard\nowidctlpar\sa200\sl276\slmult1\lang2052\f0\fs22 Arial sample text \lang1033\f1\bullet\f2\par
\b\f3 Comic sample text \f4\bullet\f2\par
\b0\f5 Consolas sample text \f6\bullet\f2\par
\f7 Lucida sample text \f8\bullet\f2\par
\pard\nowidctlpar\qj\lang2052\f9 symbl sample text \lang1033\f10\u149?\kerning2\fs21\par
\pard\sa200\sl276\slmult1\lang2052\kerning0\f11\fs22\par
}
object MainForm: TMainForm
Left = 0
Top = 0
Caption = 'MainForm'
ClientHeight = 362
ClientWidth = 637
Color = clBtnFace
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
OldCreateOrder = False
OnCreate = FormCreate
PixelsPerInch = 96
TextHeight = 13
object pnlBtn: TPanel
Left = 0
Top = 0
Width = 637
Height = 57
Align = alTop
Caption = 'pnlBtn'
TabOrder = 0
object Button1: TButton
Left = 240
Top = 14
Width = 137
Height = 31
Caption = 'Analyze Rich Edit'
TabOrder = 0
OnClick = Button1Click
end
end
object pnlClient: TPanel
Left = 0
Top = 57
Width = 637
Height = 305
Align = alClient
Caption = 'pnlClient'
TabOrder = 1
object redtTextBlock: TRichEdit
Left = 1
Top = 1
Width = 225
Height = 303
Align = alLeft
Font.Charset = GB2312_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
Lines.Strings = (
'redt1')
ParentFont = False
TabOrder = 0
end
object mmo1: TMemo
Left = 226
Top = 1
Width = 410
Height = 303
Align = alClient
Lines.Strings = (
'mmo1')
TabOrder = 1
end
end
object Button2: TButton
Left = 36
Top = 14
Width = 171
Height = 31
Caption = 'Font...'
TabOrder = 2
OnClick = Button2Click
end
object dlgFontCdxTxt: TFontDialog
Font.Charset = DEFAULT_CHARSET
Font.Color = clWindowText
Font.Height = -11
Font.Name = 'Tahoma'
Font.Style = []
Left = 480
Top = 16
end
end
unit uMainForm;
interface
uses
Contnrs,
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls, ComCtrls, ExtCtrls;
type
TCdxmlStyle = class
public
FontName: string;
Str: string;
end;
TCdxmlText = class
public
Styles: TObjectList;
constructor Create;
end;
TMainForm = class(TForm)
redtTextBlock: TRichEdit;
mmo1: TMemo;
pnlBtn: TPanel;
pnlClient: TPanel;
Button1: TButton;
Button2: TButton;
dlgFontCdxTxt: TFontDialog;
procedure Button1Click(Sender: TObject);
procedure Button2Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
procedure TestLoadFromFile;
procedure AnalyzeRichEdit;
public
{ Public declarations }
end;
var
MainForm: TMainForm;
implementation
{$R *.dfm}
uses
RichEdit, StrUtils;
{ TCdxmlText }
constructor TCdxmlText.Create;
begin
Styles := TObjectList.Create;
end;
var
l_HiddenRichEdit: TRichEdit;
{ TMainForm }
procedure TMainForm.FormCreate(Sender: TObject);
begin
TestLoadFromFile;
AnalyzeRichEdit;
end;
procedure TMainForm.Button2Click(Sender: TObject);
var
format: TCharFormat2;
begin
if dlgFontCdxTxt.Execute then
begin
FillChar(format, sizeof(format), 0);
format.cbSize:= Sizeof(format);
format.dwMask:= CFM_FACE;
StrPLCopy(format.szFaceName, dlgFontCdxTxt.Font.Name, High(format.szFaceName));
redtTextBlock.Perform(EM_SETCHARFORMAT, SCF_SELECTION, Integer(@format));
end;
redtTextBlock.SetFocus;
end;
procedure TMainForm.Button1Click(Sender: TObject);
begin
AnalyzeRichEdit;
end;
procedure TMainForm.TestLoadFromFile;
begin
redtTextBlock.Clear;
redtTextBlock.Lines.LoadFromFile('sample.rtf');
end;
procedure TMainForm.AnalyzeRichEdit;
var
l_MemStream: TMemoryStream;
l_Format: TCharFormat2;
I, J: Integer;
l_CdxmlStyle, l_CdxmlStyleWorker: TCdxmlStyle;
l_StyleFont: string;
l_CdxmlText: TCdxmlText;
begin
l_CdxmlStyle := nil;
l_CdxmlStyleWorker := nil;
mmo1.Clear;
l_MemStream := TMemoryStream.Create;
redtTextBlock.Lines.SaveToStream(l_MemStream);
l_MemStream.Seek(0, soFromBeginning);
l_HiddenRichEdit.Lines.LoadFromStream(l_MemStream);
l_CdxmlText := TCdxmlText.Create;
for I := 0 to Length(TrimRight(l_HiddenRichEdit.Text)) - 1 do
begin
l_CdxmlStyleWorker := TCdxmlStyle.Create;
FillChar(l_Format, sizeof(l_Format), 0);
l_Format.cbSize:= Sizeof(l_Format);
l_Format.dwMask:= CFM_FACE;
l_HiddenRichEdit.SelStart := I;
l_HiddenRichEdit.SelLength := 1;
l_HiddenRichEdit.Perform(EM_GETCHARFORMAT, SCF_SELECTION, Integer(@l_Format));
l_CdxmlStyleWorker.FontName := l_Format.szFaceName;
l_CdxmlStyleWorker.Str := AnsiReplaceStr(l_HiddenRichEdit.SelText, #13, #13#10);
if l_CdxmlStyle = nil then
begin
l_CdxmlText.Styles.Add(l_CdxmlStyleWorker);
l_CdxmlStyle := l_CdxmlStyleWorker;
end
else if (l_CdxmlStyleWorker.FontName <> l_CdxmlStyle.FontName ) then
begin
l_CdxmlText.Styles.Add(l_CdxmlStyleWorker);
l_CdxmlStyle := l_CdxmlStyleWorker;
end
else
begin
l_CdxmlStyle.Str := l_CdxmlStyle.Str + l_CdxmlStyleWorker.Str;
end;
end;
for I := 0 to l_CdxmlText.Styles.Count - 1 do
begin
l_CdxmlStyle := TCdxmlStyle(l_CdxmlText.Styles[I]);
mmo1.Lines.Add(l_CdxmlStyle.Str + ':' + l_CdxmlStyle.FontName);
end;
end;
initialization
l_HiddenRichEdit := TRichEdit.CreateParented(HWND_MESSAGE);
end.