getValue
Gets the contents of @provider stored in @value.
The @value will have been initialized to the GType the value should be provided in. This given GType does not need to be listed in the formats returned by method@Gdk.ContentProvider.ref_formats. However, if the given GType is not supported, this operation can fail and G_IO_ERROR_NOT_SUPPORTED will be reported.
Return
true if the value was set successfully. Otherwise
Parameters
value
the GValue to fill