/// <summary>
/// Get the description for a given ICU code point.
/// </summary>
/// <param name="code">the code point to get description/name of</param>
/// <param name="nameChoice">what type of information to retrieve</param>
/// <param name="name">return string</param>
/// <returns>length of string</returns>
private static int CharName(int code, UCharNameChoice nameChoice, out string name)
{
const int nSize = 255;
IntPtr resPtr = Marshal.AllocCoTaskMem(nSize);
try
{
ErrorCode error;
int nResult = NativeMethods.u_CharName(code, nameChoice, resPtr, nSize, out error);
if (error != ErrorCode.NoErrors)
{
nResult = -1;
name = null;
}
else
{
name = Marshal.PtrToStringAnsi(resPtr);
}
return(nResult);
}
finally
{
Marshal.FreeCoTaskMem(resPtr);
}
}
/// <summary>
/// Get the description for a given ICU code point.
/// </summary>
/// <param name="code">the code point to get description/name of</param>
/// <param name="nameChoice">what type of information to retrieve</param>
/// <param name="name">return string</param>
/// <returns>length of string</returns>
private static int CharName(int code, UCharNameChoice nameChoice, out string name)
{
name = NativeMethods.GetAnsiString((ptr, length) =>
{
length = NativeMethods.u_charName(code, nameChoice, ptr, length, out var err);
return(new Tuple <ErrorCode, int>(err, length));
});
return(name.Length);
}
