WIM：uint32 的变体类型？

Posted 2023-03-29

【中文标题】WIM：uint32 的变体类型？

【英文标题】：WIM: Variant Type for uint32?

【发布时间】：2022-01-02 10:48:11

【问题描述】：

WIM/CIM 方法的定义采用输入参数“uint32”。

我使用InitVariantFromUInt32() 设置使用的变量，但IWbemClassObject::put() 抱怨WBEM_E_TYPE_MISMATCH (0x80041005)

uint32 VARIANT 类型应该是什么？

TIA！！

【问题讨论】：

改用InitVariantFromInt32。

【参考方案1】：

答案在：

https://docs.microsoft.com/en-us/windows/win32/wmisdk/numbers

Data type	Automation type	Description
sint8	VT_I2	Signed 8-bit integer.
sint16	VT_I2	Signed 16-bit integer.
sint32	VT_I4	Signed 32-bit integer.
sint64	VT_BSTR	Signed 64-bit integer in string form. This type follows hexadecimal or decimal format according to the American National Standards Institute (ANSI) C rules.
real32	VT_R4	4-byte floating-point value that follows the Institute of Electrical and Electronics Engineers, Inc. (IEEE) standard.
real64	VT_R8	8-byte floating-point value that follows the IEEE standard.
uint8	VT_UI1	Unsigned 8-bit integer.
uint16	VT_I4	Unsigned 16-bit integer.
uint32	VT_I4	Unsigned 32-bit integer.
uint64	VT_BSTR	Unsigned 64-bit integer in string form. This type follows hexadecimal or decimal format according to ANSI C rules.