cairo_svg_surface_create

Creates a SVG surface of the specified size in points to be written to filename.

cairo_svg_surface_create(filename, width, height)

Arguments

filename

[char *] a filename for the SVG output (must be writable), %NULL may be used to specify no output. This will generate a SVG surface that may be queried and used as a source, without generating a temporary file.
width

[double] width of the surface, in points (1 point == 1/72.0 inch)
height

[double] height of the surface, in points (1 point == 1/72.0 inch)

Value

[cairo_surface_t *]

Details

The SVG surface backend recognizes the following MIME types for the data attached to a surface (see cairo_surface_set_mime_data()) when it is used as a source pattern for drawing on this surface: %CAIRO_MIME_TYPE_JPEG, %CAIRO_MIME_TYPE_PNG, %CAIRO_MIME_TYPE_URI. If any of them is specified, the SVG backend emits a href with the content of MIME data instead of a surface snapshot (PNG, Base64-encoded) in the corresponding image tag.

The unofficial MIME type %CAIRO_MIME_TYPE_URI is examined first. If present, the URI is emitted as is: assuring the correctness of URI is left to the client code.

If %CAIRO_MIME_TYPE_URI is not present, but %CAIRO_MIME_TYPE_JPEG or %CAIRO_MIME_TYPE_PNG is specified, the corresponding data is Base64-encoded and emitted.

If %CAIRO_MIME_TYPE_UNIQUE_ID is present, all surfaces with the same unique identifier will only be embedded once.

Return value: a pointer to the newly created surface. The caller owns the surface and should call cairo_surface_destroy() when done with it.

This function always returns a valid pointer, but it will return a pointer to a "nil" surface if an error such as out of memory occurs. You can use cairo_surface_status() to check for this.

Since: 1.2

C function prototype: cairo_surface_t * cairo_svg_surface_create (const char *filename, double width, double height)

See also

Other cairo-svg-surface: cairo_svg_surface_get_document_unit(), cairo_svg_surface_restrict_to_version(), cairo_svg_surface_set_document_unit(), cairo_svg_version_to_string()