private static NtResult <string[]> GetAppIds(string full_name)
{
var result = Win32NativeMethods.OpenPackageInfoByFullName(full_name, 0, out IntPtr package_info);
if (result != Win32Error.SUCCESS)
{
return(result.CreateResultFromDosError <string[]>(false));
}
try {
int length = 0;
result = Win32NativeMethods.GetPackageApplicationIds(package_info, ref length, SafeHGlobalBuffer.Null, out int count);
if (result != Win32Error.ERROR_INSUFFICIENT_BUFFER)
{
return(result.CreateResultFromDosError <string[]>(false));
}
using (var buffer = new SafeHGlobalBuffer(length)) {
return(Win32NativeMethods.GetPackageApplicationIds(package_info, ref length, buffer, out count)
.CreateWin32Result(false, () => ReadStrings(buffer, count)));
}
} finally {
if (package_info != IntPtr.Zero)
{
Win32NativeMethods.ClosePackageInfo(package_info);
}
}
}