sdlIsalpha function

int sdlIsalpha(
  1. int x
)

Query if a character is alphabetic (a letter).

WARNING: Regardless of system locale, this will only treat ASCII values for English 'a-z' and 'A-Z' as true.

\param x character value to check. \returns non-zero if x falls within the character class, zero otherwise.

\threadsafety It is safe to call this function from any thread.

\since This function is available since SDL 3.1.3.

extern SDL_DECLSPEC int SDLCALL SDL_isalpha(int x)

Implementation

int sdlIsalpha(int x) {
  final sdlIsalphaLookupFunction =
      libSdl3.lookupFunction<Int32 Function(Int32 x), int Function(int x)>(
          'SDL_isalpha');
  return sdlIsalphaLookupFunction(x);
}