IDeviceSpecificProperty::Get4BRange method
The Get4BRange method gets the 4-byte range of the device-specific property value.
Syntax
HRESULT Get4BRange( [out] LONG *plMin, [out] LONG *plMax, [out] LONG *plStepping );
Parameters
- plMin [out]
-
Pointer to a LONG variable into which the method writes the minimum property value.
- plMax [out]
-
Pointer to a LONG variable into which the method writes the maximum property value.
- plStepping [out]
-
Pointer to a LONG variable into which the method writes the stepping value between consecutive property values in the range *plMin to *plMax. If the difference between the maximum and minimum property values is d, and the range is divided into n steps (uniformly sized intervals), then the property can take n + 1 discrete values and the size of the step between consecutive values is d / n.
Return value
If the method succeeds, it returns S_OK. If it fails, possible return codes include, but are not limited to, the values shown in the following table.
| Return code | Description |
|---|---|
|
Pointer plMin, plMax, or plStepping is NULL. |
|
The property value is not a 32-bit signed or unsigned integer. For information about this macro, see the Windows SDK documentation. |
Remarks
This method reports the range and step size for a property value that is a 32-bit signed or unsigned integer. These two data types are represented by VARENUM enumeration constants VT_I4 and VT_UI4, respectively. If the property value is not a 32-bit integer, then the method returns an error status code. For more information about VARENUM, see the Windows SDK documentation.
Requirements
|
Minimum supported client |
Windows Vista [desktop apps only] |
|---|---|
|
Minimum supported server |
Windows Server 2008 [desktop apps only] |
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Header |
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See also