wiasIsPropChanged - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// wiamdef.h
HRESULT wiasIsPropChanged(
PROPID propid,
[in] WIA_PROPERTY_CONTEXT *pContext,
[out] BOOL *pbChanged
);
View the official Windows Driver Kit DDI referenceNo description available.
The wiasIsPropChanged function tests whether a specified property has been changed by an application.
propidSpecifies the property identifier of the property to be checked.
pContext [in]Pointer to a WIA_PROPERTY_CONTEXT structure that contains the current property context.
pbChanged [out]Pointer to a memory location that receives a BOOL value. The BOOL value is TRUE if the property changed, and FALSE if the property did not change.
On success, the function returns S_OK.
If the function fails, it returns a standard COM error or one of the WIA error codes.
This function determines whether a property is being changed by looking at the bChanged member value in the property's WIA_PROPERTY_CONTEXT structure. Minidrivers typically use this function to check when an independent property has been changed so that its dependents can be updated.