wiautil.h header

This header is used by image. For more information, see:

• Imaging devices

wiautil.h contains the following programming interfaces:

Classes

CWiauDbgFn The CWiauDbgFn class is a helper class that is used for tracing function or method entry and exit points.
CWiauFormatConverter The CWiauFormatConverter class is a helper class for converting images to BMP format.
CWiauPropertyList The CWiauPropertyList class can be used to create and maintain a list of properties for a device.

Functions

WIAS_ASSERT Learn how the WIAS_ASSERT macro writes a diagnostic message to the Wiatrace.log file.
WIAS_ERROR Learn how the WIAS_ERROR macro writes a diagnostic message to the Wiatrace.log file.
WIAS_HRESULT Learn how the WIAS_HRESULT macro writes a diagnostic message to the Wiatrace.log file.
WIAS_LERROR The WIAS_LERROR macro is obsolete for Windows Vista and later. It is recommended that the WIAS_ERROR macro be used instead.The WIAS_LERROR macro writes a diagnostic WIA_ERROR message to the log file.
WIAS_LHRESULT The WIAS_LHRESULT macro is obsolete for Windows Vista and later. It is recommended that the WIAS_HRESULT macro be used instead. The WIAS_LHRESULT macro translates an HRESULT value into a string and writes the string to the diagnostic log file.
WIAS_LTRACE The WIAS_LTRACE macro is obsolete for Windows Vista and later. It is recommended that the WIAS_TRACE macro be used instead.The WIAS_LTRACE macro writes a diagnostic WIA_TRACE message to the log file.
WIAS_LWARNING The WIAS_LWARNING macro is obsolete for Windows Vista and later.The WIAS_LWARNING macro writes a diagnostic WIA_WARNING message to the log file.
WIAS_TRACE Learn how the WIAS_TRACE macro writes a diagnostic message to the Wiatrace.log file.
wiauDbgDump The wiauDbgDump function logs a message containing one or more data values.
wiauDbgError The wiauDbgError function logs an error message.
wiauDbgErrorHr The wiauDbgErrorHr function logs a message containing an HRESULT and its error message string.
wiauDbgFlags The wiauDbgFlags function determines whether a particular debugging flag is set.
wiauDbgHelper The wiauDbgHelper function formats a message and writes it to a log file, or debugger, or both.
wiauDbgHelper2 The wiauDbgHelper2 function writes a message to a log file, or debugger, or both.
wiauDbgInit The wiauDbgInit function initializes WIA debugging.
wiauDbgLegacyError The wiauDbgLegacyError function logs an error message.
wiauDbgLegacyError2 The wiauDbgLegacyError2 function logs an error message.
wiauDbgLegacyHresult2 The wiauDbgLegacyHresult2 function logs a default message containing an HRESULT.
wiauDbgLegacyTrace The wiauDbgLegacyTrace function logs a trace message.
wiauDbgLegacyTrace2 The wiauDbgLegacyTrace2 function logs a trace message.
wiauDbgLegacyWarning The wiauDbgLegacyWarning function logs a warning message.
wiauDbgSetFlags The wiauDbgSetFlags function sets debugging flags.
wiauDbgTrace The wiauDbgTrace function logs a trace message.
wiauDbgWarning The wiauDbgWarning function logs a warning message.
wiauGetDrvItemContext The wiauGetDrvItemContext function gets the driver item context, and optionally, the driver item.
wiauGetResourceString The wiauGetResourceString function gets a resource string, storing it as a BSTR.
wiauGetValidFormats The wiauGetValidFormats function calls the IWiaMiniDrv::drvGetWiaFormatInfo method and makes a list of valid formats, using a specified tymed value.
wiauPropInPropSpec The wiauPropInPropSpec function determines whether a specified property specification ID is contained in an array of such values. The function optionally gets the index at which the property specification ID was found.
wiauPropsInPropSpec The wiauPropsInPropSpec function determines whether any of a list of property specification IDs is contained within an array of such values.
wiauRegGetDwordA The wiauRegGetDword function gets a DWORD value from the DeviceData section of the registry.
wiauRegGetDwordW Learn how the wiauRegGetDword function gets a DWORD value from the DeviceData section of the registry.
wiauRegGetStrA The wiauRegGetStr function gets a string value from the DeviceData section of the registry.
wiauRegGetStrW Learn how the wiauRegGetStr function gets a string value from the DeviceData section of the registry.
wiauRegOpenDataA The wiauRegOpenData function opens the DeviceData registry key.
wiauRegOpenDataW Learn how the wiauRegOpenData function opens the DeviceData registry key.
wiauSetImageItemSize The wiauSetImageItemSize function calculates the size and width, in bytes, for an image, based on the current WIA_IPA_FORMAT setting (described in the Microsoft Windows SDK documentation), and writes the new values to the appropriate properties.
wiauStrC2C The wiauStrC2C function copies an ANSI character string to another ANSI character string.
wiauStrC2W The wiauStrC2W function converts an ANSI character string to a Unicode string.
wiauStrW2C The wiauStrW2C function converts a Unicode string to an ANSI character string.
wiauStrW2W The wiauStrW2W function copies a Unicode string to another Unicode string.

Structures

BMP_IMAGE_INFO The BMP_IMAGE_INFO structure contains information about a BMP image.

Enumerations

SKIP_AMOUNT The SKIP_AMOUNT enumeration is used to indicate whether the file and informational headers of an image should be skipped over.