delphi高手请进

xiaojianace 2009-12-24 08:22:21

delphi中如何使用windows API函数实现打开桌面图标最好有一个例子

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sanguomi 2009-12-25

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第一个函数要加
uses
commctrl;

sanguomi 2009-12-25

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楼主只要组装下，应该大部分文件就可以打开了
其他的我懒得写了，

sanguomi 2009-12-25

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遍历桌面，桌面也是个SysListView32 系统标准控件，然后取内容，



var

  TextBuffer: array[0..100] of Char;

  Count: Integer;

  I: Integer;

  H: HWND;



  function ListView_GetItemText_Ex(hwndLV: HWND; i, iSubItem: Integer;

    pszText: PChar; cchTextMax: Integer): Integer;

  var

    LVItem: TLVItem;

    ProcessID, ProcessHD, Temp: DWORD;

    MemPoint: Pointer;

  begin

    GetWindowThreadProcessId(hwndLV, ProcessID);



    ProcessHD := OpenProcess(

      PROCESS_VM_OPERATION or PROCESS_VM_READ or PROCESS_VM_WRITE,

      FALSE, ProcessID);



    MemPoint := VirtualAllocEx(ProcessHD, nil, SizeOf(TLVItem) + cchTextMax,

      MEM_COMMIT, PAGE_READWRITE);



    LVItem.iSubItem := iSubItem;

    LVItem.cchTextMax := cchTextMax;

    LVItem.pszText := PChar(Integer(MemPoint) + SizeOf(TLVItem));



    WriteProcessMemory(ProcessHD, MemPoint, @LVItem, SizeOf(TLVItem), Temp);

    Result := SendMessage(hwndLV, LVM_GETITEMTEXT, i, Integer(MemPoint));



    ReadProcessMemory(ProcessHD, Pointer(Integer(MemPoint) + SizeOf(TLVItem)),

      pszText, cchTextMax, Temp);



    VirtualFreeEx(ProcessHD, MemPoint, SizeOf(TLVItem) + cchTextMax,

      MEM_DECOMMIT);

    VirtualFreeEx(ProcessHD, MemPoint, 0, MEM_RELEASE);

  end;

begin

  Result := False;

  H := FindWindow('Progman', 'Program Manager');

  H := GetWindow(H, GW_CHILD);

  H := GetWindow(H, GW_CHILD);



  Count := SendMessage(H, LVM_GETITEMCOUNT, 0, 0);

  for I := 0 to Count - 1 do

  begin

    ListView_GetItemText_Ex(H, i, 0, TextBuffer, 100);  //TextBuffer 为桌面内容

  end;

end;

如果是系统的
比如我的电脑这些
Shellexecute(0, 'open',pchar('::{20D04FE0-3AEA-1069-A2D8-08002B30309D}'), nil, nil, sw_show); 这只是打开我的电脑，其他的你自己找
如果是快捷方式
根据快捷方式，取得文件路径
函数



function GetTargetOfShorCut(LinkFile: string): string;

const

  IID_IPersistFile: TGUID = '{0000010B-0000-0000-C000-000000000046}';

var

  intfLink: IShellLink;

  IntfPersist: IPersistFile;

  pfd: _WIN32_FIND_DATA;

  bSuccess: Boolean;

  T:TStringList;

begin

  Result := '';

  CoInitialize(nil);

  T:=TStringList.Create;

  IntfLink := CreateComObject(CLSID_ShellLink) as IShellLink;

  SetString(Result, nil, MAX_PATH);

  bSuccess := (IntfLink <> nil) and

    SUCCEEDED(IntfLink.QueryInterface(IID_IPersistFile, IntfPersist))

    and SUCCEEDED(IntfPersist.Load(PWideChar(WideString(LinkFile)), STGM_READ))

    and

    SUCCEEDED(intfLink.GetPath(PAnsiChar(Result), MAX_PATH, pfd, SLGP_RAWPATH));

  if not bSuccess then

    Result := '';

  CoUninitialize;

end