Method

GdkTexturedownload

Declaration [src]

void
gdk_texture_download (
  GdkTexture* texture,
  guchar* data,
  gsize stride
)

Description [src]

Downloads the texture into local memory.

This may be an expensive operation, as the actual texture data may reside on a GPU or on a remote display server.

The data format of the downloaded data is equivalent to CAIRO_FORMAT_ARGB32, so every downloaded pixel requires 4 bytes of memory.

Downloading a texture into a Cairo image surface:

surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32,
                                      gdk_texture_get_width (texture),
                                      gdk_texture_get_height (texture));
gdk_texture_download (texture,
                      cairo_image_surface_get_data (surface),
                      cairo_image_surface_get_stride (surface));
cairo_surface_mark_dirty (surface);

Parameters

data

Type: An array of guchar

Pointer to enough memory to be filled with the downloaded data of texture.

The data is owned by the caller of the function.
stride

Type: gsize

Rowstride in bytes.