Function

GdkPixbufPixbufModuleBeginLoadFunc

Declaration

gpointer
(* GdkPixbufModuleBeginLoadFunc) (
  GdkPixbufModuleSizeFunc size_func,
  GdkPixbufModulePreparedFunc prepared_func,
  GdkPixbufModuleUpdatedFunc updated_func,
  gpointer user_data,
  GError** error
)

Description [src]

Sets up the image loading state.

The image loader is responsible for storing the given function pointers and user data, and call them when needed.

The image loader should set up an internal state object, and return it from this function; the state object will then be updated from the GdkPixbufModuleIncrementLoadFunc callback, and will be freed by GdkPixbufModuleStopLoadFunc callback.

Parameters

size_func GdkPixbufModuleSizeFunc
 

The function to be called when the size is known.

prepared_func GdkPixbufModulePreparedFunc
 

The function to be called when the data has been prepared.

updated_func GdkPixbufModuleUpdatedFunc
 

The function to be called when the data has been updated.

user_data gpointer
 

The data to be passed to the functions.

 The argument can be NULL.
error GError **
  The return location for a GError*, or NULL.

Return value

Returns: gpointer
 

The data to be passed to GdkPixbufModuleIncrementLoadFunc and GdkPixbufModuleStopLoadFunc, or NULL in case of error.