Gets the pattern used to clear the background on @window. If @window does not have its own background and reuses the parent's, %NULL is returned and you’ll have to query it yourself.
The pattern to use for the background or %NULL to use the parent’s background.
Deprecated: Don't use this function
2.22
See Implementation
Gets the pattern used to clear the background on @window. If @window does not have its own background and reuses the parent's, %NULL is returned and you’ll have to query it yourself.