steal_qdata

Description:

public void* steal_qdata (Quark quark)

This function gets back user data pointers stored via set_qdata and removes the data from this without invoking its `destroy()` function (if any was set).

Parameters:

this	The GstMiniObject to get a stored user data pointer from
quark	A Quark, naming the user data pointer

Returns:

The user data pointer set, or null