Method

GdkMemoryTextureBuilderset_update_region

since: 4.16

Declaration [src] 

void
gdk_memory_texture_builder_set_update_region (
  GdkMemoryTextureBuilder* self,
  cairo_region_t* region
)

Description [src]

Sets the region to be updated by this texture.

Together with GdkMemoryTextureBuilder:update-texture, this describes an update of a previous texture.

When rendering animations of large textures, it is possible that consecutive textures are only updating contents in parts of the texture. It is then possible to describe this update via these two properties, so that GTK can avoid rerendering parts that did not change.

An example would be a screen recording where only the mouse pointer moves.

Available since: 4.16

Sets propertyGdk.MemoryTextureBuilder:update-region

Parameters

region

Type: cairo_region_t

The region to update.

The argument can be NULL.
The data is owned by the caller of the method.