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65 lines
1.5 KiB
65 lines
1.5 KiB
// Desktop.cpp : helper functions for desktop detection
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//
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// Copyright (c) 1997-1999 Microsoft Corporation
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//
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#include "stdafx.h"
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#include "desktop.h"
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// Returns the current desktop-ID
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DWORD GetDesktop()
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{
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HDESK hdesk;
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TCHAR name[300];
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DWORD nl, desktopID, value = 0;
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HKEY hKey;
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// Detect case where we're in system setup
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if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("SYSTEM\\Setup"), 0, KEY_QUERY_VALUE, &hKey) == ERROR_SUCCESS)
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{
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DWORD cbData = sizeof(DWORD);
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RegQueryValueEx(hKey, TEXT("SystemSetupInProgress"), NULL, NULL, (LPBYTE)&value, &cbData);
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RegCloseKey(hKey);
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}
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if ( value )
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{
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return DESKTOP_ACCESSDENIED; // Setup is in progress...
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}
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hdesk = OpenInputDesktop(0, FALSE, MAXIMUM_ALLOWED);
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if (!hdesk)
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{
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// OpenInputDesktop will fail on "Winlogon" desktop
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hdesk = OpenDesktop(__TEXT("Winlogon"),0,FALSE,MAXIMUM_ALLOWED);
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if (!hdesk)
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return DESKTOP_WINLOGON;
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}
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GetUserObjectInformation(hdesk, UOI_NAME, name, 300, &nl);
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CloseDesktop(hdesk);
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if (!_tcsicmp(name, __TEXT("Default")))
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{
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desktopID = DESKTOP_DEFAULT;
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}
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else if (!_tcsicmp(name, __TEXT("Winlogon")))
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{
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desktopID = DESKTOP_WINLOGON;
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}
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else if (!_tcsicmp(name, __TEXT("screen-saver")))
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{
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desktopID = DESKTOP_SCREENSAVER;
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}
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else if (!_tcsicmp(name, __TEXT("Display.Cpl Desktop")))
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{
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desktopID = DESKTOP_TESTDISPLAY;
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}
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else
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{
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desktopID = DESKTOP_OTHER;
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}
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return desktopID;
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}
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