C# 获取在c中与ProcessStartInfo一起使用的可用谓词(文件关联)列表#
我正在尝试使用ProcessStartInfo类打开和打印文件。(文件可以是任何东西,但假设它是PDF文件) 这适用于C# 获取在c中与ProcessStartInfo一起使用的可用谓词(文件关联)列表#,c#,file-association,processstartinfo,C#,File Association,Processstartinfo,我正在尝试使用ProcessStartInfo类打开和打印文件。(文件可以是任何东西,但假设它是PDF文件) 这适用于pi.Verb=“OPEN”。有些应用程序也使用动词“PRINT”进行注册,但只有一些应用程序这样做。在我的例子(Windows PDF Viewer)中,当尝试使用pi.Verb=“PRINT”执行时出现异常 有没有办法在运行时查看C#中特定类型的所有可用动词 来自MSDN的Thx大量: > PurrestSistFiel.动词< /Cord>属性有点损坏,因为它不考虑新版
pi.Verb=“OPEN”代码>。有些应用程序也使用动词“PRINT”进行注册,但只有一些应用程序这样做。在我的例子(Windows PDF Viewer)中,当尝试使用pi.Verb=“PRINT”执行时出现异常代码>
有没有办法在运行时查看C#中特定类型的所有可用动词
来自MSDN的Thx大量:
<> > <代码> PurrestSistFiel.动词< /Cord>属性有点损坏,因为它不考虑新版本的Windows(Windows 8及以上AFAIK)如何检索已注册的应用程序。该属性仅检查在<代码> HKCR\Ext/Cube >(如可以看到)中定义的PROFIDES的动词,而不考虑其他地方,例如注册表项“代码”> HKEY、CurrnTyAuth[Suff\\Studio\\Windows \\CurrorVistor\Explorer \FielExt\Ext/Corp>或其他一些地方,例如通过策略定义。
获取注册动词
最好的方法不是直接检查注册表(由ProcessStartInfo
类完成),而是使用适当的Windows API函数检索相关的ProgId:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using Microsoft.Win32;
class Program
{
private static void Main(string[] args)
{
string fileName = @"E:\Pictures\Sample.jpg";
string progId = AssocQueryString(AssocStr.ASSOCSTR_PROGID, fileName);
var verbs = GetVerbsByProgId(progId);
if (!verbs.Contains("printto"))
{
throw new Exception("PrintTo is not supported!");
}
}
private static string[] GetVerbsByProgId(string progId)
{
var verbs = new List<string>();
if (!string.IsNullOrEmpty(progId))
{
using (var key = Registry.ClassesRoot.OpenSubKey(progId + "\\shell"))
{
if (key != null)
{
var names = key.GetSubKeyNames();
verbs.AddRange(
names.Where(
name =>
string.Compare(
name,
"new",
StringComparison.OrdinalIgnoreCase)
!= 0));
}
}
}
return verbs.ToArray();
}
private static string AssocQueryString(AssocStr association, string extension)
{
uint length = 0;
uint ret = AssocQueryString(
AssocF.ASSOCF_NONE, association, extension, "printto", null, ref length);
if (ret != 1) //expected S_FALSE
{
throw new Win32Exception();
}
var sb = new StringBuilder((int)length);
ret = AssocQueryString(
AssocF.ASSOCF_NONE, association, extension, null, sb, ref length);
if (ret != 0) //expected S_OK
{
throw new Win32Exception();
}
return sb.ToString();
}
[DllImport("Shlwapi.dll", CharSet = CharSet.Unicode, SetLastError = true)]
private static extern uint AssocQueryString(
AssocF flags,
AssocStr str,
string pszAssoc,
string pszExtra,
[Out] StringBuilder pszOut,
ref uint pcchOut);
[Flags]
private enum AssocF : uint
{
ASSOCF_NONE = 0x00000000,
ASSOCF_INIT_NOREMAPCLSID = 0x00000001,
ASSOCF_INIT_BYEXENAME = 0x00000002,
ASSOCF_OPEN_BYEXENAME = 0x00000002,
ASSOCF_INIT_DEFAULTTOSTAR = 0x00000004,
ASSOCF_INIT_DEFAULTTOFOLDER = 0x00000008,
ASSOCF_NOUSERSETTINGS = 0x00000010,
ASSOCF_NOTRUNCATE = 0x00000020,
ASSOCF_VERIFY = 0x00000040,
ASSOCF_REMAPRUNDLL = 0x00000080,
ASSOCF_NOFIXUPS = 0x00000100,
ASSOCF_IGNOREBASECLASS = 0x00000200,
ASSOCF_INIT_IGNOREUNKNOWN = 0x00000400,
ASSOCF_INIT_FIXED_PROGID = 0x00000800,
ASSOCF_IS_PROTOCOL = 0x00001000,
ASSOCF_INIT_FOR_FILE = 0x00002000
}
private enum AssocStr
{
ASSOCSTR_COMMAND = 1,
ASSOCSTR_EXECUTABLE,
ASSOCSTR_FRIENDLYDOCNAME,
ASSOCSTR_FRIENDLYAPPNAME,
ASSOCSTR_NOOPEN,
ASSOCSTR_SHELLNEWVALUE,
ASSOCSTR_DDECOMMAND,
ASSOCSTR_DDEIFEXEC,
ASSOCSTR_DDEAPPLICATION,
ASSOCSTR_DDETOPIC,
ASSOCSTR_INFOTIP,
ASSOCSTR_QUICKTIP,
ASSOCSTR_TILEINFO,
ASSOCSTR_CONTENTTYPE,
ASSOCSTR_DEFAULTICON,
ASSOCSTR_SHELLEXTENSION,
ASSOCSTR_DROPTARGET,
ASSOCSTR_DELEGATEEXECUTE,
ASSOCSTR_SUPPORTED_URI_PROTOCOLS,
ASSOCSTR_PROGID,
ASSOCSTR_APPID,
ASSOCSTR_APPPUBLISHER,
ASSOCSTR_APPICONREFERENCE,
ASSOCSTR_MAX
}
}
使用系统;
使用System.Collections.Generic;
使用系统组件模型;
使用系统诊断;
使用System.Linq;
使用System.Runtime.InteropServices;
使用系统文本;
使用Microsoft.Win32;
班级计划
{
私有静态void Main(字符串[]args)
{
字符串文件名=@“E:\Pictures\Sample.jpg”;
字符串progId=AssocQueryString(AssocStr.AssocStr_progId,文件名);
变量动词=GetVerbsByProgId(progId);
如果(!verbs.Contains(“printto”))
{
抛出新异常(“不支持PrintTo!”);
}
}
私有静态字符串[]GetVerbsByProgId(字符串progId)
{
var动词=新列表();
如果(!string.IsNullOrEmpty(progId))
{
使用(var key=Registry.ClassesRoot.OpenSubKey(progId+“\\shell”))
{
if(key!=null)
{
var name=key.GetSubKeyNames();
动词.AddRange(
名字,在哪里(
名称=>
字符串。比较(
名称
“新”,
StringComparison.OrdinalingoreCase)
!= 0));
}
}
}
返回动词。ToArray();
}
私有静态字符串AssocQueryString(AssocStr关联,字符串扩展名)
{
uint长度=0;
uint ret=AssocQueryString(
AssocF.AssocF_NONE,关联,扩展,“printto”,null,参考长度);
if(ret!=1)//预期S_为FALSE
{
抛出新的Win32Exception();
}
var sb=新的StringBuilder((int)长度);
ret=AssocQueryString(
AssocF.AssocF_无、关联、扩展、空、sb、参考长度);
if(ret!=0)//预期S_正常
{
抛出新的Win32Exception();
}
使某人返回字符串();
}
[DllImport(“Shlwapi.dll”,CharSet=CharSet.Unicode,SetLastError=true)]
私有静态外部单元关联(
AssocF旗帜,
AssocStr str,
字符串pszAssoc,
字符串pszExtra,
[Out]StringBuilder pszOut,
参考uint pcchOut);
[旗帜]
私有枚举关联:uint
{
ASSOCF_NONE=0x00000000,
ASSOCF_INIT_NOREMAPCLSID=0x00000001,
ASSOCF_INIT_BYEXENAME=0x00000002,
ASSOCF_OPEN_BYEXENAME=0x00000002,
ASSOCF_INIT_DEFAULTTOSTAR=0x00000004,
ASSOCF_INIT_DEFAULTTOFOLDER=0x00000008,
ASSOCF_NOUSERSETTINGS=0x00000010,
ASSOCF_NOTRUNCATE=0x00000020,
ASSOCF_VERIFY=0x00000040,
ASSOCF_REMAPRUNDLL=0x00000080,
ASSOCF_NOFIXUPS=0x00000100,
ASSOCF_IGNOREBASECLASS=0x00000200,
ASSOCF_INIT_IGNOREUNKNOWN=0x00000400,
ASSOCF_INIT_FIXED_PROGID=0x0000800,
ASSOCF_是_协议=0x00001000,
文件的ASSOCF_INIT_=0x00002000
}
私有枚举关联
{
ASSOCSTR_命令=1,
ASSOCSTR_可执行文件,
ASSOCSTR_FRIENDLYDOCNAME,
ASSOCSTR_FRIENDLYAPPNAME,
阿索克斯特鲁努蓬,
ASSOCSTR_SHELLNEWVALUE,
联合指挥部,
助理首席执行官,
ASSOCSTR\U应用程序,
联合主题,
ASSOCSTR_信息提示,
快速提示助理,
国际信息协会,
ASSOCSTR_CONTENTTYPE,
ASSOCSTR_默认图标,
ASSOCSTR_SHELLEXTENSION,
阿索克斯特鲁·杜普塔,
授权执行助理,
ASSOCSTR_支持的_URI_协议,
ASSOCSTR_PROGID,
助理秘书长,
联合出版公司,
ASSOCSTR_APPICONREFERENCE,
阿索克斯特鲁马克斯酒店
}
}
哦,天哪,真的没想到他们会让它这么容易使用。Thx很多
startInfo = new ProcessStartInfo(fileName);
if (File.Exists(fileName))
{
i = 0;
foreach (String verb in startInfo.Verbs)
{
// Display the possible verbs.
Console.WriteLine(" {0}. {1}", i.ToString(), verb);
i++;
}
}
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Diagnostics;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using Microsoft.Win32;
class Program
{
private static void Main(string[] args)
{
string fileName = @"E:\Pictures\Sample.jpg";
string progId = AssocQueryString(AssocStr.ASSOCSTR_PROGID, fileName);
var verbs = GetVerbsByProgId(progId);
if (!verbs.Contains("printto"))
{
throw new Exception("PrintTo is not supported!");
}
}
private static string[] GetVerbsByProgId(string progId)
{
var verbs = new List<string>();
if (!string.IsNullOrEmpty(progId))
{
using (var key = Registry.ClassesRoot.OpenSubKey(progId + "\\shell"))
{
if (key != null)
{
var names = key.GetSubKeyNames();
verbs.AddRange(
names.Where(
name =>
string.Compare(
name,
"new",
StringComparison.OrdinalIgnoreCase)
!= 0));
}
}
}
return verbs.ToArray();
}
private static string AssocQueryString(AssocStr association, string extension)
{
uint length = 0;
uint ret = AssocQueryString(
AssocF.ASSOCF_NONE, association, extension, "printto", null, ref length);
if (ret != 1) //expected S_FALSE
{
throw new Win32Exception();
}
var sb = new StringBuilder((int)length);
ret = AssocQueryString(
AssocF.ASSOCF_NONE, association, extension, null, sb, ref length);
if (ret != 0) //expected S_OK
{
throw new Win32Exception();
}
return sb.ToString();
}
[DllImport("Shlwapi.dll", CharSet = CharSet.Unicode, SetLastError = true)]
private static extern uint AssocQueryString(
AssocF flags,
AssocStr str,
string pszAssoc,
string pszExtra,
[Out] StringBuilder pszOut,
ref uint pcchOut);
[Flags]
private enum AssocF : uint
{
ASSOCF_NONE = 0x00000000,
ASSOCF_INIT_NOREMAPCLSID = 0x00000001,
ASSOCF_INIT_BYEXENAME = 0x00000002,
ASSOCF_OPEN_BYEXENAME = 0x00000002,
ASSOCF_INIT_DEFAULTTOSTAR = 0x00000004,
ASSOCF_INIT_DEFAULTTOFOLDER = 0x00000008,
ASSOCF_NOUSERSETTINGS = 0x00000010,
ASSOCF_NOTRUNCATE = 0x00000020,
ASSOCF_VERIFY = 0x00000040,
ASSOCF_REMAPRUNDLL = 0x00000080,
ASSOCF_NOFIXUPS = 0x00000100,
ASSOCF_IGNOREBASECLASS = 0x00000200,
ASSOCF_INIT_IGNOREUNKNOWN = 0x00000400,
ASSOCF_INIT_FIXED_PROGID = 0x00000800,
ASSOCF_IS_PROTOCOL = 0x00001000,
ASSOCF_INIT_FOR_FILE = 0x00002000
}
private enum AssocStr
{
ASSOCSTR_COMMAND = 1,
ASSOCSTR_EXECUTABLE,
ASSOCSTR_FRIENDLYDOCNAME,
ASSOCSTR_FRIENDLYAPPNAME,
ASSOCSTR_NOOPEN,
ASSOCSTR_SHELLNEWVALUE,
ASSOCSTR_DDECOMMAND,
ASSOCSTR_DDEIFEXEC,
ASSOCSTR_DDEAPPLICATION,
ASSOCSTR_DDETOPIC,
ASSOCSTR_INFOTIP,
ASSOCSTR_QUICKTIP,
ASSOCSTR_TILEINFO,
ASSOCSTR_CONTENTTYPE,
ASSOCSTR_DEFAULTICON,
ASSOCSTR_SHELLEXTENSION,
ASSOCSTR_DROPTARGET,
ASSOCSTR_DELEGATEEXECUTE,
ASSOCSTR_SUPPORTED_URI_PROTOCOLS,
ASSOCSTR_PROGID,
ASSOCSTR_APPID,
ASSOCSTR_APPPUBLISHER,
ASSOCSTR_APPICONREFERENCE,
ASSOCSTR_MAX
}
}