public static ShellCommand ApplicationOpenCommand(string application)
{
// HKCR\Applications\[app.exe]\shell\open
ShellCommand shellCommand = ShellCommandFromVerb(application, null, String.Concat(@"Applications\", application, @"\shell"), "open");
if (shellCommand != null)
{
return(shellCommand);
}
// HKCR\Applications\[app.exe]\shell\edit
return(ShellCommandFromVerb(application, null, String.Concat(@"Applications\", application, @"\shell"), "edit"));
}
public static ShellCommand ProgIdOpenCommand(string progId)
{
// HKCR\[progid]\shell\open
ShellCommand shellCommand = ShellCommandFromVerb(null, progId, String.Concat(progId, @"\shell"), "open");
if (shellCommand != null)
{
return(shellCommand);
}
// HKCR\[progid]\shell\edit
return(ShellCommandFromVerb(null, progId, String.Concat(progId, @"\shell"), "edit"));
}
private static ShellCommand ShellCommandFromVerb(string application, string progId, string shellRegKeyPath, string verb)
{
ShellCommand shellCommand = null;
RegistryKey regKey = null;
RegistryKey ddeKey = null;
RegistryKey verbKey = null;
try
{
string command;
verbKey = Registry.ClassesRoot.OpenSubKey(String.Concat(shellRegKeyPath, '\\', verb));
if (verbKey == null)
{
return(null);
}
regKey = verbKey.OpenSubKey("command");
if (regKey == null)
{
return(null);
}
command = RegistryHelper.StringValueFromRegKey(regKey, string.Empty);
regKey.Close();
regKey = null;
if (command == null)
{
return(null);
}
shellCommand = new ShellCommand(application, progId, verb, null, command, null, null, null);
// get DDE (if it exists)
ddeKey = verbKey.OpenSubKey(@"ddeexec");
if (ddeKey != null)
{
// get DDE command
shellCommand.DDE = RegistryHelper.StringValueFromRegKey(ddeKey, string.Empty);
// get DDE application (if it exists)
shellCommand.DDEApplication = RegistryHelper.StringValueFromRegKey(ddeKey, @"\application");
// get DDE topic (if it exists)
shellCommand.DDETopic = RegistryHelper.StringValueFromRegKey(ddeKey, @"\topic");
}
return(shellCommand);
}
catch { }
if (regKey != null)
{
regKey.Close();
}
if (verbKey != null)
{
verbKey.Close();
}
if (ddeKey != null)
{
ddeKey.Close();
}
return(shellCommand);
}
