严重性代码指示返回值是表示信息、警告还是错误。
The severity code indicates whether the return value represents information, warning, or error.
HRESULT为32位元值，它划分为三个不同栏位：严重性代码、设备代码和错误码。
HRESULT is a 32-bit value, divided into three different fields: a severity code, a facility code, and an error code.
HRESULT为32位元值，它划分为三个不同栏位：严重性代码、设备代码和错误码。
HRESULT is a 32-bit value, divided into three different fields: a severity code, a facility code, and an error code.
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