COM methods usually return an HRESULT, indicating that the call succeeded or failed.
COM方法通常会传回HRESULT，表示呼叫成功或失败。
Many JNI methods have a return value that indicates whether the call succeeded or not.
许多JNI方法都通过返回值来指示调用成功与否。
The call to BIO_do_connect checks to see if the connection succeeded.
调用 BIO_do_connect检查连接是否成功。
The call to BIO_do_connect checks to see if the connection succeeded.
调用 BIO_do_connect检查连接是否成功。
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