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U_DRAFT int32_t U_EXPORT2 uldn_keyValueDisplayName ( const ULocaleDisplayNames ldn,
const char *  key,
const char *  value,
UChar *  result,
int32_t  maxResultSize,
UErrorCode pErrorCode 

Returns the display name of the provided value (used with the provided key).

ldn the LocaleDisplayNames instance
key the locale key
value the locale key's value
result receives the display name
maxResultSize the size of the result buffer
pErrorCode the status code
the actual buffer size needed for the display name. If it's greater than maxResultSize, the returned name will be truncated. ICU 4.4

Definition at line 679 of file locdspnm.cpp.

References UnicodeString::extract(), U_FAILURE, and U_ILLEGAL_ARGUMENT_ERROR.

  if (U_FAILURE(*pErrorCode)) {
    return 0;
  if (ldn == NULL || key == NULL || value == NULL || (result == NULL && maxResultSize > 0)
      || maxResultSize < 0) {
    return 0;
  UnicodeString temp(result, 0, maxResultSize);
  ((const LocaleDisplayNames *)ldn)->keyValueDisplayName(key, value, temp);
  return temp.extract(result, maxResultSize, *pErrorCode);

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