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//声明:
ExtractIcon(
  hInst: HINST;           {调用函数的程序实例}
  lpszExeFileName: PChar; {文件路径; 文件可以是 *.exe、*.dll、*.ico}
  nIconIndex: UINT        {图标索引}
): HICON; {返回图标句柄; 索引为 0 时返回第一个图标句柄; 索引为 #FFFFFFFF 时返回图标总数}

//举例: unit Unit1; interface uses Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms, Dialogs, StdCtrls, ExtCtrls; type TForm1 = class(TForm) Button1: TButton; procedure Button1Click(Sender: TObject); end; var Form1: TForm1; implementation {$R *.dfm} uses ShellAPI; {ExtractIcon 在其中声明} procedure TForm1.Button1Click(Sender: TObject); var ico: TIcon; i,count,x,y,w,h: Integer; FilePath: string; begin {随便找了个路径, 如果缺失会退出} FilePath := 'C:\Program Files\Macromedia\Fireworks 8\Fireworks.exe'; if not FileExists(FilePath) then begin ShowMessage('文件不存在'); Exit; end; ico := TIcon.Create; x := 10; y := 10; w := 0; h := 0; Repaint; {先算出文件内的图标总数} count := ExtractIcon(HInstance, PChar(FilePath), HICON(-1)); for i := 0 to count - 1 do begin {循环提取图标} ico.Handle := ExtractIcon(HInstance, PChar(FilePath), i); {画出图标} Canvas.Draw(x,y,ico); {下面只是调整显示位置} if w < ico.Width then w := ico.Width; if h < ico.Height then h := ico.Height; x := x + ico.Width + 10; if x >= ClientWidth - w then begin x := 10; y := y + h + 10; end; end; ico.Free; end; end.
//效果图:


posted on 2008-02-15 19:26  万一  阅读(...)  评论(...编辑  收藏