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Annotation of truecrypt/common/basecom.cpp, revision 1.1

1.1     ! root        1: /*
        !             2:  Copyright (c) TrueCrypt Foundation. All rights reserved.
        !             3: 
        !             4:  Covered by the TrueCrypt License 2.2 the full text of which is contained
        !             5:  in the file License.txt included in TrueCrypt binary and source code
        !             6:  distribution packages.
        !             7: */
        !             8: 
        !             9: #include <atlcomcli.h>
        !            10: #include <strsafe.h>
        !            11: #include <windows.h>
        !            12: #include "BaseCom.h"
        !            13: #include "Dlgcode.h"
        !            14: 
        !            15: 
        !            16: HRESULT CreateElevatedComObject (HWND hwnd, REFGUID guid, REFIID iid, void **ppv)
        !            17: {
        !            18:     BIND_OPTS3 bo;
        !            19:     WCHAR wszCLSID[50];
        !            20:     WCHAR wszMonikerName[300];
        !            21: 
        !            22:     StringFromGUID2 (guid, wszCLSID, sizeof (wszCLSID) / sizeof (wszCLSID[0]));
        !            23:     
        !            24:        HRESULT hr = StringCchPrintfW (
        !            25:                wszMonikerName, sizeof (wszMonikerName) / sizeof (wszMonikerName[0]),
        !            26:                L"Elevation:Administrator!new:%s", wszCLSID);
        !            27: 
        !            28:     if (FAILED(hr))
        !            29:         return hr;
        !            30: 
        !            31:     memset (&bo, 0, sizeof (bo));
        !            32:     bo.cbStruct = sizeof (bo);
        !            33:     bo.hwnd = hwnd;
        !            34:     bo.dwClassContext = CLSCTX_LOCAL_SERVER;
        !            35: 
        !            36:     return CoGetObject (wszMonikerName, &bo, iid, ppv);
        !            37: }
        !            38: 
        !            39: 
        !            40: BOOL ComGetInstanceBase (HWND hWnd, REFCLSID clsid, REFIID iid, void **tcServer)
        !            41: {
        !            42:        BOOL r;
        !            43: 
        !            44:        if (IsUacSupported ())
        !            45:                r = CreateElevatedComObject (hWnd, clsid, iid, tcServer) == S_OK;
        !            46:        else
        !            47:                r = CoCreateInstance (clsid, NULL, CLSCTX_LOCAL_SERVER, iid, tcServer) == S_OK;
        !            48: 
        !            49:        if (!r)
        !            50:                Error ("UAC_INIT_ERROR");
        !            51: 
        !            52:        return r;
        !            53: }
        !            54: 

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