设备代码识别负责错误的系统区。
The upper 16-bit word is the facility code, while the lower word is the actual error code.较高的 16 位字是设施代码,而较低的字才是真正的错误代码。
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。