TColor 与 RGB 的互转

先晒个图^_^

?

unitUnit1;

 

interface

 

uses

  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,

  Dialogs, StdCtrls;

 

type

  TForm1 = class(TForm)

    Edit1: TEdit;

    GroupBox1: TGroupBox;

    StaticText1: TStaticText;

    Edit2: TEdit;

    Edit3: TEdit;

    Edit4: TEdit;

    Label1: TLabel;

    Label2: TLabel;

    Label3: TLabel;

    Button1: TButton;

    Button2: TButton;

    Button3: TButton;

    Button4: TButton;

    procedureButton1Click(Sender: TObject);

    procedureButton2Click(Sender: TObject);

    procedureButton3Click(Sender: TObject);

  private

    { Private declarations }

  public

    { Public declarations }

  end;

 

var

  Form1: TForm1;

 

implementation

 

{$R *.dfm}

var

  c:TColor;

procedureTForm1.Button1Click(Sender: TObject); //TColor转RGB

begin

  c:=StringToColor(Edit1.Text);

  Edit1.Color:=c;

  Edit2.Text:='$'+ IntToHex(GetRValue(c),2);

  Edit3.Text:='$'+ IntToHex(GetGValue(c),2);

  Edit4.Text:='$'+ IntToHex(GetBValue(c),2);

end;

 

procedureTForm1.Button2Click(Sender: TObject); //RGB转TColor

var

  str:string;

  r,g,b:Byte;

begin

    R:=StrToInt(Edit2.Text);

    G:=StrToInt(Edit3.Text);

    B:=StrToInt(Edit4.Text);

 

  str:='$00'+ IntToHex(b,2) + IntTohex(g,2) + IntTohex(r,2);

  Edit1.Color:=StrToInt(str);

  Edit1.Text:=str;

end;

 

procedureTForm1.Button3Click(Sender: TObject);//清空(不是真的清空，只是懒得每次都输入'$'这个符号)

begin

Edit1.Text:='$';

Edit2.Text:='$';

Edit3.Text:='$';

Edit4.Text:='$';

end;

end.