Function

GdkPixbufPixbufcalculate_rowstride

since: 2.36.8

Declaration [src]

gint
gdk_pixbuf_calculate_rowstride (
  GdkColorspace colorspace,
  gboolean has_alpha,
  int bits_per_sample,
  int width,
  int height
)

Description [src]

Calculates the rowstride that an image created with those values would have.

This function is useful for front-ends and backends that want to check image values without needing to create a GdkPixbuf.

Available since: 2.36.8

Parameters

colorspace

Type: GdkColorspace

Color space for image.

has_alpha

Type: gboolean

Whether the image should have transparency information.

bits_per_sample

Type: int

Number of bits per color sample.

width

Type: int

Width of image in pixels, must be > 0

height

Type: int

Height of image in pixels, must be > 0

Return value

Type: gint

The rowstride for the given values, or -1 in case of error.