If your application executable is in C:\your dir\your program.exe the line is translated to: “C:\your dir\your program.exe” “%L” %L is translated to the file you’re opening, so your program is executing having that file as the first parameter
Regarding file associations, I’ve wrote an answer earlier that at least covers the “How”. This should also point you to the right direction how to handle backup and restore. With direct registry access through c#, there will be no need to use .reg files, so you are free to back up the previous value however … Read more
You can of course patch together the FileName and the Extension and hope for the best. Or test whether a file Extension has a predefined Opener, an entry in the Registry that associates an Extension with an application that can hadle that file format. The System provides an API – AssocQueryString – that provides this … Read more
What I’ve used successfully to access files on a computer is the following code: #region imports [DllImport(“advapi32.dll”, SetLastError = true)] private static extern bool LogonUser(string lpszUsername, string lpszDomain, string lpszPassword, int dwLogonType, int dwLogonProvider, ref IntPtr phToken); [DllImport(“kernel32.dll”, CharSet = CharSet.Auto, SetLastError = true)] private static extern bool CloseHandle(IntPtr handle ); [DllImport(“advapi32.dll”, CharSet = CharSet.Auto, … Read more
I faced to the same problem. I solved it by navigate to HKEY_CURRENT_USER\Software\Python\PythonCore\3.4\InstallPath and edit the default key with the output of C:\> where python.exe command. navigate to HKEY_CURRENT_USER\Software\Python\PythonCore\3.4\InstallPath\InstallGroup and edit the default key with Python 3.4 Note: My python version is 3.4 and you need to replace 3.4 with your python version. Normally you … Read more
For anyone who is interested in a C# solution for some of the previous versions of .NET in order to not have to refactor too much code, its not pretty but here it is, totally doable using reflection. I found this trick in the XSharper source code. public static class RegistryExtensions { public enum RegistryHiveType … Read more
Here’s something that does what you want which is similar to code in the jaraco.windows project. And like it, only uses built-in Python modules—so doesn’t require first downloading and installing the pywin32 extensions. Plus it’s Python 2.6+ and 3.x compatible and supports Unicode environment variables and values (directory paths in this case). Note that Windows … Read more
If you’re looking for a quick and dirty workaround, you can create a shortcut to your executable in ‘%AppData%\Microsoft\Windows\SendTo’ Now you can select a bunch of files, right click, select Send To, and your application. This will pass all the selected files as individual command line options to one instance of your application… keep in … Read more
It can happen if you are on a 64-bit machine. Create a helper class first (requires .NET 4.0 or later): public class RegistryHelpers { public static RegistryKey GetRegistryKey() { return GetRegistryKey(null); } public static RegistryKey GetRegistryKey(string keyPath) { RegistryKey localMachineRegistry = RegistryKey.OpenBaseKey(RegistryHive.LocalMachine, Environment.Is64BitOperatingSystem ? RegistryView.Registry64 : RegistryView.Registry32); return string.IsNullOrEmpty(keyPath) ? localMachineRegistry : localMachineRegistry.OpenSubKey(keyPath); } public … Read more
Use LoadLibrary and NtQueryKey exported function as in the following code snippet. #include <windows.h> #include <string> typedef LONG NTSTATUS; #ifndef STATUS_SUCCESS #define STATUS_SUCCESS ((NTSTATUS)0x00000000L) #endif #ifndef STATUS_BUFFER_TOO_SMALL #define STATUS_BUFFER_TOO_SMALL ((NTSTATUS)0xC0000023L) #endif std::wstring GetKeyPathFromKKEY(HKEY key) { std::wstring keyPath; if (key != NULL) { HMODULE dll = LoadLibrary(L”ntdll.dll”); if (dll != NULL) { typedef DWORD (__stdcall *NtQueryKeyType)( … Read more