The CairoContent class

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Giriş

CairoContent is used to describe the content that a surface will contain, whether color information, alpha information (translucence vs. opacity), or both.

Note: The large values here are designed to keep CairoContent values distinct from CairoContent values so that the implementation can detect the error if users confuse the two types.

Sınıf Sözdizimi

CairoContent {

/* Sabitler */

const integer COLOR = 4096 ;

const integer ALPHA = 8192 ;

const integer COLOR_ALPHA = 12288 ;

}

Öntanımlı Sabitler

CairoContent::COLOR: The surface will hold color content only.
CairoContent::ALPHA: The surface will hold alpha content only.
CairoContent::COLOR_ALPHA: The surface will hold color and alpha content.