Gmagick::getimagesignature

(PECL gmagick >= Unknown)

Gmagick::getimagesignature — Generates an SHA-256 message digest

public void Gmagick::getimagesignature ( void )

Generates an SHA-256 message digest for the image pixel stream.

이 함수는 인수가 없습니다.

Returns a string containing the SHA-256 hash of the file.

Throws an GmagickException on error.