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 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 gsize
 

Rowstride in bytes.