Parameters

charUnknownHigh

The high surrogate of the input pair.

charUnknownLow

The low surrogate of the input pair.

index

The index position of the surrogate pair in the input buffer.

Returns

true if the replacement string is not empty; false if the replacement string is empty.

Remarks

The erload:System.Text.Encoding.GetBytes and erload:System.Text.Encoder.Convert methods call EncoderReplacementFallbackBuffer.Fallback(char, char, int) if they encounter an unknown character in their input. If the return value of EncoderReplacementFallbackBuffer.Fallback(char, char, int) is true, the calling method can invoke the EncoderReplacementFallbackBuffer.GetNextChar method to obtain each character in the replacement fallback buffer.

Requirements