gCancellablePushCurrent: gCancellablePushCurrent
Description
Pushes cancellable onto the cancellable stack. The current
cancllable can then be recieved using gCancellableGetCurrent.Usage
gCancellablePushCurrent(object)
Details
This is useful when implementing cancellable operations in
code that does not allow you to pass down the cancellable object.
This is typically called automatically by e.g. GFile operations,
so you rarely have to call this yourself.