C# 如何以编程方式检查 Visio 是否已安装，以及安装在何处？
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How do I programatically check if Visio is installed, and where?
提问by brasskazoo
I am building a C# application that exports a CSV file to be used with the Visio org chart wizard.
我正在构建一个 C# 应用程序，它导出一个 CSV 文件以与 Visio 组织结构图向导一起使用。
How can I check that an installation of Visio exists, and what path?
如何检查 Visio 的安装是否存在，以及路径是什么？
The most obvious method is checking if C:\Program Files\Office12\ORGWIZ.EXEexists, but that is fairly dependant on having Visio 2007 installed..
最明显的方法是检查是否C:\Program Files\Office12\ORGWIZ.EXE存在，但这相当依赖于安装 Visio 2007。
My other thought is checking the registry, but what is the most reliable source? I've looked under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\where there are version numbers, but underneath them is a Visio\InstallRootwhich would be perfect except for checking each versions..
我的另一个想法是检查注册表，但最可靠的来源是什么？我查看了HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Office\哪里有版本号，但在它们下面是一个Visio\InstallRoot完美的，除了检查每个版本..
I read elsewhere that I could check Uninstall information under Software\Microsoft\Windows\CurrentVersion\Uninstall\, but that looks fairly complicated for Windows components...
我在别处读到我可以检查下的卸载信息Software\Microsoft\Windows\CurrentVersion\Uninstall\，但这对于 Windows 组件来说看起来相当复杂......
采纳答案by Roger Willcocks
I would do a lookup for HKEY_CLASSES_ROOT\Visio.Application in the registry. If it doesn't exist, no install. If it does exist, the CurVer sub key will give you something like Visio.Application.12 That tells you the DEFAULT version that is installed (might be others)
我会在注册表中查找 HKEY_CLASSES_ROOT\Visio.Application。如果不存在，则无需安装。如果它确实存在，CurVer 子键会给你类似 Visio.Application.12 的东西，告诉你安装的 DEFAULT 版本（可能是其他版本）
HKEY_CLASSES_ROOT\Visio.Application.12 Sub Key CLSID will give you a guid: {00021A20-0000-0000-C000-000000000046}
HKEY_CLASSES_ROOT\Visio.Application.12 子键 CLSID 会给你一个 guid：{00021A20-0000-0000-C000-000000000046}
HKEY_CLASSES_ROOT\CLSID{00021A20-0000-0000-C000-000000000046} in turn will give you Sub Key "LocalServer32" Which will contain the path to the EXE.
HKEY_CLASSES_ROOT\CLSID{00021A20-0000-0000-C000-000000000046} 反过来会给你子键“LocalServer32”，其中包含 EXE 的路径。
C:\PROGRA~1\MICROS~4\Office12\VISIO.EXE /Automation
C:\PROGRA~1\MICROS~4\Office12\VISIO.EXE /自动化
As you can see, in my case it has the short path form.
如您所见，就我而言，它具有短路径形式。
回答by marcc
Could you just check if the Visio file extension is registered, and to what application?
您能否检查一下 Visio 文件扩展名是否已注册，以及注册到什么应用程序？
http://www.dreamincode.net/code/snippet3159.htm
http://www.dreamincode.net/code/snippet3159.htm
Look in HKEY_CLASSES_ROOT\\.vsd, does the key exist, what are the values? Compare them to a set of values which indicate the application is installed.
看看里面HKEY_CLASSES_ROOT\\.vsd，key是否存在，value是什么？将它们与指示应用程序已安装的一组值进行比较。
回答by brasskazoo
Here is my solution, based on Roger'sanswer:
这是我的解决方案，基于Roger 的回答：
RegistryKey regVersionString = Registry.ClassesRoot.OpenSubKey("Visio.Drawing\CurVer");
Console.WriteLine("VERSION: " + regVersionString.GetValue(""));
RegistryKey regClassId = Registry.ClassesRoot.OpenSubKey(regVersionString.GetValue("") + "\CLSID");
Console.WriteLine("CLSID: " + regClassId.GetValue(""));
RegistryKey regInstallPath = Registry.ClassesRoot.OpenSubKey("CLSID\" + regClassId.GetValue("") + "\LocalServer32");
Console.WriteLine("PATH: " + regInstallPath.GetValue(""));
