private static string GetFileAssociationCore(string path, AssociationAttributes attributes, AssociationString associationType)
{
if (Utils.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException("path");
}
attributes = attributes | AssociationAttributes.NoTruncate | AssociationAttributes.RemapRunDll;
uint bufferSize = NativeMethods.MaxPath;
StringBuilder buffer;
uint retVal;
do
{
buffer = new StringBuilder((int)bufferSize);
// AssocQueryString()
// In the ANSI version of this function, the name is limited to 248 characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2014-02-05: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
// However, the function fails when using Unicode format.
retVal = NativeMethods.AssocQueryString(attributes, associationType, path, null, buffer, out bufferSize);
// No Exception is thrown, just return empty string on error.
//switch (retVal)
//{
// // 0x80070483: No application is associated with the specified file for this operation.
// case 2147943555:
// case Win32Errors.E_POINTER:
// case Win32Errors.S_OK:
// break;
// default:
// NativeError.ThrowException(retVal);
// break;
//}
} while (retVal == Win32Errors.E_POINTER);
return(buffer.ToString());
}
private static string GetFileAssociationCore(string path, AssociationAttributes attributes, AssociationString associationType)
{
if (Utils.IsNullOrWhiteSpace(path))
{
throw new ArgumentNullException("path");
}
attributes = attributes | AssociationAttributes.NoTruncate | AssociationAttributes.RemapRunDll;
uint bufferSize = NativeMethods.MaxPath;
StringBuilder buffer;
uint retVal;
do
{
buffer = new StringBuilder((int)bufferSize);
// AssocQueryString()
// 2014-02-05: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
// 2015-07-17: This function does not support long paths.
retVal = NativeMethods.AssocQueryString(attributes, associationType, path, null, buffer, out bufferSize);
// No Exception is thrown, just return empty string on error.
//switch (retVal)
//{
// // 0x80070483: No application is associated with the specified file for this operation.
// case 2147943555:
// case Win32Errors.E_POINTER:
// case Win32Errors.S_OK:
// break;
// default:
// NativeError.ThrowException(retVal);
// break;
//}
} while (retVal == Win32Errors.E_POINTER);
return(buffer.ToString());
}
private static string GetFileAssociationInternal(string path, AssociationAttributes attributes, AssociationString associationType)
{
if (Utils.IsNullOrWhiteSpace(path))
throw new ArgumentNullException("path");
attributes = attributes | AssociationAttributes.NoTruncate | AssociationAttributes.RemapRunDll;
uint bufferSize = NativeMethods.MaxPath;
StringBuilder buffer;
uint retVal;
do
{
buffer = new StringBuilder((int)bufferSize);
// AssocQueryString()
// In the ANSI version of this function, the name is limited to 248 characters.
// To extend this limit to 32,767 wide characters, call the Unicode version of the function and prepend "\\?\" to the path.
// 2014-02-05: MSDN does not confirm LongPath usage but a Unicode version of this function exists.
// However, the function fails when using Unicode format.
retVal = NativeMethods.AssocQueryString(attributes, associationType, path, null, buffer, out bufferSize);
// No Exception is thrown, just return empty string on error.
//switch (retVal)
//{
// // 0x80070483: No application is associated with the specified file for this operation.
// case 2147943555:
// case Win32Errors.E_POINTER:
// case Win32Errors.S_OK:
// break;
// default:
// NativeError.ThrowException(retVal);
// break;
//}
} while (retVal == Win32Errors.E_POINTER);
return buffer.ToString();
}
