OICQ中用户图标选择的实现

unit Unit1; 数据挖掘工具

interface

数据挖掘交友

uses
  Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
  StdCtrls;

type
  TForm1 = class(TForm)
    List1: TComboBox;
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    procedure FormCreate(Sender: TObject);
    procedure List1DrawItem(Control: TWinControl; Index: Integer;
      Rect: TRect; State: TOwnerDrawState);
  private
    { Private declarations }
  public
    { Public declarations }
  end; 数据挖掘工具

var
  Form1: TForm1;

implementation

{$R *.DFM}

数据挖掘实验室

procedure TForm1.Button1Click(Sender: TObject);
                 var
s: String;
begin
 Randomize;
 s:= intTostr(Random(100));//LAST HERE!
 CreateDir(s);
end;
procedure TForm1.FormCreate(Sender: TObject);
var
Bit1,Bit2,Bit3,Bit4,Bit5,Bit6: TBitmap;
begin
  List1.Style := csOwnerDrawVariable;
  List1.ItemHeight := 30;
  Bit1 := TBitmap.Create;
  Bit1.LoadFromFile("C:Program FilesOicqface1-1.bmp");
  Bit2 := TBitmap.Create;
  Bit2.LoadFromFile("C:Program FilesOicqface2-1.bmp");
  Bit3 := TBitmap.Create;
  Bit3.LoadFromFile("C:Program FilesOicqface3-1.bmp");
  Bit4 := TBitmap.Create;
  Bit4.LoadFromFile("C:Program FilesOicqface4-1.bmp");
  Bit5 := TBitmap.Create;
  Bit5.LoadFromFile("C:Program FilesOicqface5-1.bmp");
  Bit6 := TBitmap.Create;
  Bit6.LoadFromFile("C:Program FilesOicqface6-1.bmp");

数据挖掘工具

数据挖掘论坛

procedure TForm1.List1DrawItem(Control: TWinControl; Index: Integer;
  Rect: TRect; State: TOwnerDrawState);
var
Bitmap: TBitmap;
Offset: Integer;
begin
  with(Control as TCombobox).Canvas do
  begin
    FillRect(Rect);
    Bitmap := TBitmap(List1.Items.Objects[Index]);
    //Bitmap := TBitmap.Create;
    //ImageList1.GetBitmap(Index,Bitmap);
    if Bitmap<> Nil then
    begin
      BrushCopy(Bounds(Rect.Left+2,Rect.Top+2,Bitmap.Width,Bitmap.Height),Bitmap,
              Bounds(0,0,Bitmap.Width,Bitmap.Height),clRed);
    Offset := Bitmap.Width + 8;
    TextOut(Rect.Left+OffSet,Rect.Top,List1.Items[Index]);
    end; 数据挖掘工具

  end;

数据挖掘实验室

end; 数据挖掘论坛

end.
数据挖掘研究院