public static string QueryAssociationString (string assoc, AssociationString str, AssociationFlags flags, string extra = null)
{
if (assoc == null)
throw new ArgumentNullException("assoc");
flags |= AssociationFlags.NoTruncate;
const uint E_POINTER = 0x80004003;
const uint E_NO_ASSOCIATION = 0x80070483;
var builder = new StringBuilder (512);
int size = builder.Length;
var result = Win32.AssocQueryStringW (flags, str, assoc, extra, builder, ref size);
if (result == unchecked((int)E_POINTER)) {
builder.Length = size;
result = Win32.AssocQueryStringW (flags, str, assoc, extra, builder, ref size);
}
if (result == unchecked((int)E_NO_ASSOCIATION)) {
return null;
}
Marshal.ThrowExceptionForHR (result);
return builder.ToString ();
}
public static extern HResult AssocQueryStringByKeyW(
AssociationFlags flags,
AssociationString str,
RegistryKeyHandle hkAssoc,
string pszExtra,
SafeHandle pszOut,
ref uint pcchOut);
public static string AssocQueryString(AssociationFlags flags, AssociationString @string, string association, string extraInfo)
{
return(BufferHelper.BufferInvoke((StringBuffer buffer) =>
{
flags |= AssociationFlags.NoTruncate;
HResult result;
uint count = buffer.CharCapacity;
while ((result = Imports.AssocQueryStringW(flags, @string, association, extraInfo, buffer, ref count)) == HResult.E_POINTER)
{
buffer.EnsureCharCapacity(count);
}
result.ThrowIfFailed(association);
// Count includes the null
buffer.Length = count - 1;
return buffer.ToString();
}));
}
static WindowsDesktopApplication WindowsAppFromName (string appName, bool isDefault, AssociationFlags flags)
{
try {
string displayName = QueryAssociationString (appName, AssociationString.FriendlyAppName, flags, "open");
string exePath = QueryAssociationString (appName, AssociationString.Executable, flags, "open");
//ignore apps with missing information, it's not worth logging
if (exePath == null || displayName == null)
return null;
if (System.Reflection.Assembly.GetEntryAssembly ().Location != exePath)
return new WindowsDesktopApplication (appName, displayName, exePath, isDefault);
} catch (Exception ex) {
LoggingService.LogError (string.Format ("Failed to read info for {0} '{1}'", flags == AssociationFlags.None ? "ProgId" : "ExeName", appName), ex);
}
return null;
}
public static string QueryAssociationString (string assoc, AssociationString str, AssociationFlags flags, string extra = null)
{
if (assoc == null)
throw new ArgumentNullException("assoc");
flags |= AssociationFlags.NoTruncate;
const uint E_POINTER = 0x80004003;
const uint E_NO_ASSOCIATION = 0x80070483;
var builder = new StringBuilder (512);
int size = builder.Length;
var result = Win32.AssocQueryStringW (flags, str, assoc, extra, builder, ref size);
if (result == unchecked((int)E_POINTER)) {
builder.Length = size;
result = Win32.AssocQueryStringW (flags, str, assoc, extra, builder, ref size);
}
if (result == unchecked((int)E_NO_ASSOCIATION)) {
return null;
}
Marshal.ThrowExceptionForHR (result);
return builder.ToString ();
}
public static extern HResult AssocQueryKeyW(
AssociationFlags flags,
AssociationKey key,
string pszAssoc,
string pszExtra,
out RegistryKeyHandle phkeyOut);
public static extern int AssocQueryStringW (AssociationFlags flags, AssociationString str, string assoc, string extra, StringBuilder outBuffer, ref int outBufferSize);
static WindowsDesktopApplication WindowsAppFromName(string appName, bool isDefault, AssociationFlags flags)
{
try {
string displayName = QueryAssociationString(appName, AssociationString.FriendlyAppName, flags, "open");
string exePath = QueryAssociationString(appName, AssociationString.Executable, flags, "open");
//ignore apps with missing information, it's not worth logging
if (exePath == null || displayName == null)
{
return(null);
}
if (System.Reflection.Assembly.GetEntryAssembly().Location != exePath)
{
return(new WindowsDesktopApplication(appName, displayName, exePath, isDefault));
}
} catch (Exception ex) {
LoggingService.LogError(string.Format("Failed to read info for {0} '{1}'", flags == AssociationFlags.None ? "ProgId" : "ExeName", appName), ex);
}
return(null);
}
private static extern int AssocQueryString(AssociationFlags flags,
AssociationStringType stringType,
string filePath,
string extra,
[Out] StringBuilder result,
[In][Out] ref int size);
public static extern int AssocQueryStringW(AssociationFlags flags, AssociationString str, string assoc, string extra, StringBuilder outBuffer, ref int outBufferSize);
public static RegistryKeyHandle AssocQueryKey(AssociationFlags flags, AssociationKey key, string association, string extraInfo)
{
Imports.AssocQueryKeyW(flags, key, association, extraInfo, out RegistryKeyHandle handle)
.ThrowIfFailed();
return(handle);
}
static WindowsDesktopApplication WindowsAppFromName(string appName, string defaultApp, AssociationFlags flags)
{
try {
string displayName = QueryAssociationString(appName, AssociationString.FriendlyAppName, flags, "open");
string exePath = QueryAssociationString(appName, AssociationString.Executable, flags, "open");
if (System.Reflection.Assembly.GetEntryAssembly().Location != exePath)
{
return(new WindowsDesktopApplication(appName, displayName, exePath, appName.Equals(defaultApp)));
}
} catch (Exception ex) {
LoggingService.LogError(string.Format("Failed to read info for {0} '{1}'", flags == AssociationFlags.None ? "ProgId" : "ExeName", appName), ex);
}
return(null);
}
static IEnumerable <DesktopApplication> GetAppFromRegistry(RegistryKey key, string defaultApp, HashSet <string> uniqueAppsSet, AssociationFlags flags, AppOpenWithRegistryType type)
{
if (key != null)
{
var apps = new string[0];
if (type == AppOpenWithRegistryType.FromValue)
{
apps = key.GetValueNames();
}
else if (type == AppOpenWithRegistryType.FromSubkey)
{
apps = key.GetSubKeyNames();
}
else if (type == AppOpenWithRegistryType.FromMRUList)
{
string list = (string)key.GetValue("MRUList");
apps = list.Select(c => (string)key.GetValue(c.ToString())).ToArray();
}
foreach (string appName in apps)
{
var app = WindowsAppFromName(appName, defaultApp, flags);
if (app != null && uniqueAppsSet.Add(app.ExePath))
{
yield return(app);
}
}
}
}