USAGE_AND_PAGE structure (hidpi.h)
The USAGE_AND_PAGE structure specifies the usage page and usage ID of a HID control.
Syntax
typedef struct _USAGE_AND_PAGE {
USAGE Usage;
USAGE UsagePage;
} USAGE_AND_PAGE, *PUSAGE_AND_PAGE;
Members
Usage
Specifies a usage ID within the usage page specified by UsagePage.
UsagePage
Specifies a usage page.
Remarks
The HidP_IsSameUsageAndPage macro determines if two extended usages, represented by USAGE_AND_PAGE structures, are equal.
BOOLEAN HidP_IsSameUsageAndPage( USAGE_AND_PAGE u1, USAGE_AND_PAGE u2 );
u1
USAGE_AND_PAGE
Specifies an extended usage
u2
USAGE_AND_PAGE
Specifies an extended usage
Return Value
BOOLEAN
HidP_IsSameUsageAndPage returns one of the following status values:
TRUE
Usage u1 is the same as usage u2.
FALSE
Usage u1 is different than usage u2.
As defined by the USB HID standard, an extended usage is a 32-bit unsigned value. The high-order 16 bits specify the usage page, and lower-order 16 bits specify the usage ID.
For more information, see HID Collections.
Requirements
| Requirement | Value |
|---|---|
| Header | hidpi.h (include Hidpi.h) |