LWia::SetPropertySystemTime

#include "ltwrappr.h"

virtual L_INT LWia::SetPropertySystemTime(pItem, pszID, uID, pValue)

Sets the time of the specified item as a form of SYSTEMTIME structure for WIA property type VT_UI2 | VT_VECTOR.

Parameters

L_VOID * pItem

Valid pointer to a type IWiaItem (WIA Version 1.0) or IWiaItem2 (WIA Version 2.0) object, representing the item that has the property.

Retrieve this parameter by either calling the LWia::GetRootItem function to get a pointer to the device's root item, or by enumerating the child items of the device by calling LWia::EnumChildItems.

L_TCHAR * pszID

String pointer containing the equivalent property ID string for the WIA property ID (see example below):

Property ID Property ID Equivalent String
WIA_IPA_TYMED WIA_IPA_TYMED_STR or "Media Type"
WIA_IPA_DEPTH WIA_IPA_DEPTH_STR or "Bits Per Pixel"

If this parameter is NULL, the WIA toolkit will use the ID passed through the uID parameter; otherwise, the pszID parameter will be used regardless of whether a valid property ID is passed through the uID parameter.

L_UINT32 uID

The property ID of the property.

The uID parameter is required only if the pszID parameter is NULL. If the pszID parameter is not NULL, you can pass 0 for uID.

LPSYSTEMTIME pValue

Pointer to a variable of type SYSTEMTIME to be set as the passed item's time.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

This feature is available in LEADTOOLS version 16 or higher.

Call [LWia:SetPropertySystemTime to set the passed item's time through the SYSTEMTIME structure for any WIA property of type VT_UI2 | VT_VECTOR (for example, WIA_DPA_DEVICE_TIME or WIA_IPA_ITEM_TIME).

Required DLLs and Libraries

Help Version 21.0.2021.4.7
Products | Support | Contact Us | Intellectual Property Notices
© 1991-2021 LEAD Technologies, Inc. All Rights Reserved.

LEADTOOLS WIA C++ Class Library Help