{"id":198,"date":"2007-04-22T15:53:09","date_gmt":"2007-04-22T14:53:09","guid":{"rendered":"http:\/\/www.itwriting.com\/blog\/?p=198"},"modified":"2007-04-22T15:53:09","modified_gmt":"2007-04-22T14:53:09","slug":"c-code-to-detect-uac-elevation-on-vista","status":"publish","type":"post","link":"https:\/\/www.itwriting.com\/blog\/198-c-code-to-detect-uac-elevation-on-vista.html","title":{"rendered":"C# code to detect UAC elevation on Vista"},"content":{"rendered":"

A couple of days ago I posted about programmatically detecting whether UAC is enabled<\/a>. I was proposing to read a registry entry. Thanks to the power of blogs, my post drew a comment from Andrei Belogortseff, who has posted C++ code<\/a> that does this properly. His library has functions for detecting whether the current process is elevated, detecting whether UAC is enabled, and running new processes both elevated and non-elevated (the last of these is the hardest to do).<\/p>\n

I liked the libary but wanted to use it from .NET. I compiled his code to a DLL and did a C# wrapper; then I considered the hassles of adding a dependency on the Visual C++ runtime libraries. I therefore did a quick C# implementation of the functions I cared about; I haven’t included the code for running new processes. Please go ahead and download the code<\/a>, and let me know if you have any suggestions, or even if there is a much easier way to do this that I have missed. There is an app called UACElevationCheck, which calls functions in VistaTools.cs.<\/p>\n

<\/p>\n

The code is only intended to be called from Vista and will throw an exception otherwise; of course you can modify it as you like.<\/p>\n

I’ve included a function IsReallyVista that looks for a Vista-only API call, rather than relying on the reported version information. This is because the version information is unreliable if the app runs in a compatibility mode. On the other hand, IsReallyVista is a hack; if you don’t like it, use IsVista which uses the version information instead.<\/p>\n

You may be able to do this using the System.Security namespace rather than PInvoke. I had a quick look but the PInvoke code seemed easier to me, especially since Belogortseff has already done the real work.<\/p>\n

 <\/p>\n

Technorati tags: uac<\/a>, elevation<\/a>, c#<\/a>, .NET<\/a>, c sharp<\/a>, dotnet<\/a>, vista<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

A couple of days ago I posted about programmatically detecting whether UAC is enabled. I was proposing to read a registry entry. Thanks to the power of blogs, my post drew a comment from Andrei Belogortseff, who has posted C++ code that does this properly. His library has functions for detecting whether the current process … Continue reading C# code to detect UAC elevation on Vista<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[80,97],"tags":[],"class_list":["post-198","post","type-post","status-publish","format-standard","hentry","category-software-development","category-windows"],"_links":{"self":[{"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/posts\/198","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/comments?post=198"}],"version-history":[{"count":0,"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/posts\/198\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/media?parent=198"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/categories?post=198"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.itwriting.com\/blog\/wp-json\/wp\/v2\/tags?post=198"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}