预定义常量

下列常量由此扩展定义，且仅在此扩展编译入 PHP 或在运行时动态载入时可用。

CAIRO_STATUS_SUCCESS (integer)

CAIRO_STATUS_NO_MEMORY (integer)

CAIRO_STATUS_INVALID_RESTORE (integer)

CAIRO_STATUS_INVALID_POP_GROUP (integer)

CAIRO_STATUS_NO_CURRENT_POINT (integer)

CAIRO_STATUS_INVALID_MATRIX (integer)

CAIRO_STATUS_INVALID_STATUS (integer)

CAIRO_STATUS_NULL_POINTER (integer)

CAIRO_STATUS_INVALID_STRING (integer)

CAIRO_STATUS_INVALID_PATH_DATA (integer)

CAIRO_STATUS_READ_ERROR (integer)

CAIRO_STATUS_WRITE_ERROR (integer)

CAIRO_STATUS_SURFACE_FINISHED (integer)

CAIRO_STATUS_SURFACE_TYPE_MISMATCH (integer)

CAIRO_STATUS_PATTERN_TYPE_MISMATCH (integer)

CAIRO_STATUS_INVALID_CONTENT (integer)

CAIRO_STATUS_INVALID_FORMAT (integer)

CAIRO_STATUS_INVALID_VISUAL (integer)

CAIRO_STATUS_FILE_NOT_FOUND (integer)

CAIRO_STATUS_INVALID_DASH (integer)

CAIRO_STATUS_INVALID_DSC_COMMENT (integer)

CAIRO_STATUS_INVALID_INDEX (integer)

CAIRO_STATUS_CLIP_NOT_REPRESENTABLE (integer)

CAIRO_STATUS_TEMP_FILE_ERROR (integer)

CAIRO_STATUS_INVALID_STRIDE (integer)

CAIRO_ANTIALIAS_DEFAULT (integer)

CAIRO_ANTIALIAS_NONE (integer)

CAIRO_ANTIALIAS_GRAY (integer)

CAIRO_ANTIALIAS_SUBPIXEL (integer)

CAIRO_SUBPIXEL_ORDER_DEFAULT (integer)

CAIRO_SUBPIXEL_ORDER_RGB (integer)

CAIRO_SUBPIXEL_ORDER_BGR (integer)

CAIRO_SUBPIXEL_ORDER_VRGB (integer)

CAIRO_SUBPIXEL_ORDER_VBGR (integer)

CAIRO_FILL_RULE_WINDING (integer)

CAIRO_FILL_RULE_EVEN_ODD (integer)

CAIRO_LINE_CAP_BUTT (integer)

CAIRO_LINE_CAP_ROUND (integer)

CAIRO_LINE_CAP_SQUARE (integer)

CAIRO_LINE_JOIN_MITER (integer)

CAIRO_LINE_JOIN_ROUND (integer)

CAIRO_LINE_JOIN_BEVEL (integer)

CAIRO_OPERATOR_CLEAR (integer)

CAIRO_OPERATOR_SOURCE (integer)

CAIRO_OPERATOR_OVER (integer)

CAIRO_OPERATOR_IN (integer)

CAIRO_OPERATOR_OUT (integer)

CAIRO_OPERATOR_ATOP (integer)

CAIRO_OPERATOR_DEST (integer)

CAIRO_OPERATOR_DEST_OVER (integer)

CAIRO_OPERATOR_DEST_IN (integer)

CAIRO_OPERATOR_DEST_OUT (integer)

CAIRO_OPERATOR_DEST_ATOP (integer)

CAIRO_OPERATOR_XOR (integer)

CAIRO_OPERATOR_ADD (integer)

CAIRO_OPERATOR_SATURATE (integer)

CAIRO_PATTERN_TYPE_SOLID (integer)

CAIRO_PATTERN_TYPE_SURFACE (integer)

CAIRO_PATTERN_TYPE_LINEAR (integer)

CAIRO_PATTERN_TYPE_RADIAL (integer)

CAIRO_EXTEND_NONE (integer)

CAIRO_EXTEND_REPEAT (integer)

CAIRO_EXTEND_REFLECT (integer)

CAIRO_EXTEND_PAD (integer)

CAIRO_FILTER_FAST (integer)

CAIRO_FILTER_GOOD (integer)

CAIRO_FILTER_BEST (integer)

CAIRO_FILTER_NEAREST (integer)

CAIRO_FILTER_BILINEAR (integer)

CAIRO_FILTER_GAUSSIAN (integer)

CAIRO_HINT_STYLE_DEFAULT (integer)

CAIRO_HINT_STYLE_NONE (integer)

CAIRO_HINT_STYLE_SLIGHT (integer)

CAIRO_HINT_STYLE_MEDIUM (integer)

CAIRO_HINT_STYLE_FULL (integer)

CAIRO_HINT_METRICS_DEFAULT (integer)

CAIRO_HINT_METRICS_OFF (integer)

CAIRO_HINT_METRICS_ON (integer)

CAIRO_FONT_TYPE_TOY (integer)

CAIRO_FONT_TYPE_FT (integer)

CAIRO_FONT_TYPE_WIN32 (integer)

CAIRO_FONT_TYPE_QUARTZ (integer)

CAIRO_FONT_SLANT_NORMAL (integer)

CAIRO_FONT_SLANT_ITALIC (integer)

CAIRO_FONT_SLANT_OBLIQUE (integer)

CAIRO_FONT_WEIGHT_NORMAL (integer)

CAIRO_FONT_WEIGHT_BOLD (integer)

CAIRO_CONTENT_COLOR (integer)

CAIRO_CONTENT_ALPHA (integer)

CAIRO_CONTENT_COLOR_ALPHA (integer)

CAIRO_SURFACE_TYPE_IMAGE (integer)

CAIRO_SURFACE_TYPE_PDF (integer)

CAIRO_SURFACE_TYPE_PS (integer)

CAIRO_SURFACE_TYPE_XLIB (integer)

CAIRO_SURFACE_TYPE_XCB (integer)

CAIRO_SURFACE_TYPE_GLITZ (integer)

CAIRO_SURFACE_TYPE_QUARTZ (integer)

CAIRO_SURFACE_TYPE_WIN32 (integer)

CAIRO_SURFACE_TYPE_BEOS (integer)

CAIRO_SURFACE_TYPE_DIRECTFB (integer)

CAIRO_SURFACE_TYPE_SVG (integer)

CAIRO_SURFACE_TYPE_OS2 (integer)

CAIRO_SURFACE_TYPE_WIN32_PRINTING (integer)

CAIRO_SURFACE_TYPE_QUARTZ_IMAGE (integer)

CAIRO_FORMAT_ARGB32 (integer)

CAIRO_FORMAT_RGB24 (integer)

CAIRO_FORMAT_A8 (integer)

CAIRO_FORMAT_A1 (integer)

CAIRO_PS_LEVEL_2 (integer)

CAIRO_PS_LEVEL_3 (integer)

CAIRO_SVG_VERSION_1_1 (integer)

CAIRO_SVG_VERSION_1_2 (integer)