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Annotation of truecrypt/common/basecom.cpp, revision 1.1.1.1

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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