[gst-devel] How can I get the error msg after call the gst call?

[michael young]

Hi all:
    How can I get the error message when I call the gst call. For example ,
if I called the gst_element_query_duration(),
and it return false, and now how can I get a description for the failure? Is
there some function like strerror() ? tks :)
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