unit Unit1;
interface
uses
Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, Vcl.ComCtrls, RichEdit;
type
TForm1 = class(TForm)
RichEdit1: TRichEdit;
RichEdit2: TRichEdit;
Button1: TButton;
procedure Button1Click(Sender: TObject);
procedure FormCreate(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
begin
RichEdit1.Clear;
RichEdit2.Clear;
end;
procedure TForm1.Button1Click(Sender: TObject);
var i:integer; S1,S2,S3,S4:string;
CF:TCharFormat;
begin
for i:=1 to 5 do begin //
RichEdit1.SelStart:=i; //
RichEdit1.SelLength:=1; // 1 ( , - 1 )
S1:=RichEdit1.Text[i]; //
S2:=S2+RichEdit1.Text[i]; //
FillChar(CF, SizeOf(CF), 0); //FillChar - ,
CF.cbSize:=SizeOf(CF); //cbSize - , , . , rich edit control, CBSIze CHARFORMAT CHARFORMAT2. CBSIze CharFormat, CharFormat. (https://docs.microsoft.com/en-us/windows/win32/api/richedit/ns-richedit-charformat2w_1)
CF.dwMask:=CFM_OFFSet; //dwMask - CHARFORMAT2, . DWMask . , . Dweffects. (https://docs.microsoft.com/en-us/windows/win32/api/richedit/ns-richedit-charformat2w_1)
// yOffset, CFM_OFFSet DWMask (//https://docs.microsoft.com/en-us/windows/win32/api/richedit/ns-richedit-charformat2w_1)
RichEdit1.Perform(EM_GETCHARFORMAT, SCF_SELECTION, LPARAM(@CF)); //Perform - (Windows message)
if CF.yOffset >0 then // , ...
begin
S3:=S3+RichEdit1.Text[i]; //
end;
if CF.yOffset <0 then // , ...
begin
S4:=S4+RichEdit1.Text[i]; //
end;
end;
RichEdit2.Lines.Add(': '+S3);
RichEdit2.Lines.Add(': '+S4);
end;
end.
