197 lines
8.1 KiB
ObjectPascal
197 lines
8.1 KiB
ObjectPascal
{******************************************************************
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JEDI-VCL Demo
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Copyright (C) 2002 Project JEDI
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Original author:
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Contributor(s):
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You may retrieve the latest version of this file at the JEDI-JVCL
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home page, located at http://jvcl.sourceforge.net
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The contents of this file are used with permission, subject to
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the Mozilla Public License Version 1.1 (the "License"); you may
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not use this file except in compliance with the License. You may
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obtain a copy of the License at
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http://www.mozilla.org/MPL/MPL-1_1Final.html
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Software distributed under the License is distributed on an
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"AS IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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implied. See the License for the specific language governing
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rights and limitations under the License.
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******************************************************************}
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unit Unit1;
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{$I jvcl.inc}
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interface
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uses
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Windows, Messages, SysUtils, {$IFDEF DELPHI6_UP}Variants, {$ENDIF}Classes, Graphics, Controls, Forms,
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Dialogs, StdCtrls, ComCtrls, JvObjectPickerDialog, JvComponent;
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type
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TForm1 = class(TForm)
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Memo1: TMemo;
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Button2: TButton;
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procedure Button2Click(Sender: TObject);
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private
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{ Private declarations }
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public
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{ Public declarations }
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end;
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var
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Form1: TForm1;
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implementation
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uses
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ActiveX, ObjSel, ComObj;
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{$R *.dfm}
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//----------------------------------------------------------------------------------------------------------------------
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// This is the code used in the article (only slightly different)
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//----------------------------------------------------------------------------------------------------------------------
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// just a convenience constant, includes all security groups
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const
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ALL_SECURITY_GROUPS =
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DSOP_FILTER_DOMAIN_LOCAL_GROUPS_SE or DSOP_FILTER_BUILTIN_GROUPS or
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DSOP_FILTER_GLOBAL_GROUPS_SE or DSOP_FILTER_UNIVERSAL_GROUPS_SE;
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// TOleVariantArray is just a convenience to access the pvarFetchedAttributes as an array
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type
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TOleVariantArray = array [0..(MaxInt div SizeOf(OleVariant)) - 1] of OleVariant;
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POleVariantArray = ^TOleVariantArray;
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procedure TForm1.Button2Click(Sender: TObject);
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var
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ObjPicker: IDsObjectPicker; // the Object Picker COM object
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InitInfo: TDsOpInitInfo; // the initalization record
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ScopeInitInfo: array [0..1] of TDsOpScopeInitInfo; // the scopes
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DataObj: IDataObject; // used to retrieve the selection list
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Format: TFormatEtc; // used to retrieve the selection list
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Medium: TStgMedium; // used to retrieve the selection list
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SelectionList: PDsSelectionList; // the list of selected objects
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Selection: TDsSelection; // selection object
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HR: HResult; // method call result
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I: Integer; // loop variable
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Attributes: array [0..1] of WideString; // array of requested attribute names
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Attribute: OleVariant; // value of requested attribute
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begin
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// 1. initialize COM
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CoInitializeEx(nil, COINIT_APARTMENTTHREADED);
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// 2. create the Object Picker object
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if SUCCEEDED(CoCreateInstance(CLSID_DsObjectPicker, nil, CLSCTX_INPROC_SERVER, IID_IDsObjectPicker, ObjPicker)) then
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begin
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// 3. initialize scopes
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FillChar(InitInfo, SizeOf(InitInfo), 0);
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InitInfo.cbSize := SizeOf(InitInfo);
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InitInfo.flOptions := DSOP_FLAG_MULTISELECT;
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InitInfo.cDsScopeInfos := 2;
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InitInfo.aDsScopeInfos := @ScopeInitInfo[0];
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// 1st scope, users from enterprise domain
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FillChar(ScopeInitInfo[0], SizeOf(TDsOpScopeInitInfo), 0);
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ScopeInitInfo[0].cbSize := SizeOf(TDsOpScopeInitInfo);
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ScopeInitInfo[0].flType := DSOP_SCOPE_TYPE_ENTERPRISE_DOMAIN;
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ScopeInitInfo[0].FilterFlags.Uplevel.flMixedModeOnly := DSOP_FILTER_USERS;
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ScopeInitInfo[0].FilterFlags.Uplevel.flBothModes := DSOP_FILTER_USERS;
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ScopeInitInfo[0].FilterFlags.Uplevel.flNativeModeOnly := DSOP_FILTER_USERS;
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// 2nd scope, security accounts from global catalog
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FillChar(ScopeInitInfo[1], SizeOf(TDsOpScopeInitInfo), 0);
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ScopeInitInfo[1].cbSize := SizeOf(TDsOpScopeInitInfo);
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ScopeInitInfo[1].flType := DSOP_SCOPE_TYPE_GLOBAL_CATALOG;
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ScopeInitInfo[1].FilterFlags.Uplevel.flMixedModeOnly := ALL_SECURITY_GROUPS;
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ScopeInitInfo[1].FilterFlags.Uplevel.flBothModes := ALL_SECURITY_GROUPS;
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ScopeInitInfo[1].FilterFlags.Uplevel.flNativeModeOnly := ALL_SECURITY_GROUPS;
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// 4. initialize attributes, request displayname and email address
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Attributes[0] := WideString('displayName');
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Attributes[1] := WideString('mail');
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InitInfo.cAttributesToFetch := 2;
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{ (p3) not sure about this one (was @Attributes[0])... }
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InitInfo.apwzAttributeNames := LPLPWSTR(@Attributes[0]);
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// 5. initialize object picker
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if SUCCEEDED(ObjPicker.Initialize(@InitInfo)) then
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begin
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// 6. display dialog
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HR := ObjPicker.InvokeDialog(0, DataObj);
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if HR = S_OK then
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begin
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// 7. user selected one or more objects and clicked OK - process the selection
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Format.cfFormat := RegisterClipboardFormat(CFSTR_DSOP_DS_SELECTION_LIST);
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Format.ptd := nil;
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Format.dwAspect := DVASPECT_CONTENT;
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Format.lindex := -1;
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Format.tymed := TYMED_HGLOBAL;
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FillChar(Medium, SizeOf(Medium), 0);
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Medium.tymed := TYMED_HGLOBAL;
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if SUCCEEDED(DataObj.GetData(Format, Medium)) then
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begin
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SelectionList := GlobalLock(Medium.hGlobal);
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try
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// 8. display generic selection info
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Assert(SelectionList.cItems <> 0);
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Memo1.Lines.Add('Selected objects count: ' + IntToStr(SelectionList.cItems));
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Memo1.Lines.Add('Fetched attributes count: ' + IntToStr(SelectionList.cFetchedAttributes));
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Memo1.Lines.Add('');
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// 9. for each selected object
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for I := 0 to SelectionList.cItems - 1 do
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begin
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{$R-}Selection := SelectionList.aDsSelection[I];{$R+}
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// 10. display the object fields
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Memo1.Lines.Add('Name: ' + string(WideString(Selection.pwzName)));
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Memo1.Lines.Add('ADSPath: ' + string(WideString(Selection.pwzADsPath)));
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Memo1.Lines.Add('Class: ' + string(WideString(Selection.pwzClass)));
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Memo1.Lines.Add('UPN: ' + string(WideString(Selection.pwzUPN)));
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// 11. display the attributes. Note that attribute is an OleVariant that can contain a large number of
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// different types and formats depending on the requested attributes. we happen to request only string
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// typed attributes so we can display them without further conversion (OleVariant to string is
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// automatic). for other types significant programming may be required, but that's outside the scope
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// of this article..
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Attribute := POleVariantArray(Selection.pvarFetchedAttributes)^[0];
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if VarIsEmpty(Attribute) then
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Memo1.Lines.Add('displayName: <unavailable>')
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else
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Memo1.Lines.Add('displayName: ' + Attribute);
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Attribute := POleVariantArray(Selection.pvarFetchedAttributes)^[1];
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if VarIsEmpty(Attribute) then
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Memo1.Lines.Add('email: <unavailable>')
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else
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Memo1.Lines.Add('email: ' + Attribute);
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Memo1.Lines.Add('');
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end;
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finally
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GlobalUnlock(Medium.hGlobal);
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ReleaseStgMedium(Medium);
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end;
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end;
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end
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else if HR = S_FALSE then
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begin
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// user cancelled the dialog, no selection
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ShowMessage('This system cannot display the object picker dialog');
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end
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else
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begin
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// an error occured, the user never saw the dialog, raise an exception
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OleCheck(HR);
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end;
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end;
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end;
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// 12. uninitialize COM
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ObjPicker := nil;
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DataObj := nil;
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CoUninitialize;
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end;
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end.
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