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Sets type VT_CLSID properties (like WIA_IPA_FORMAT).
#include "ltwrappr.h"
virtual L_INT LWia::SetPropertyGUID(pItem, pszID, uID, pGuidValue)
Valid pointer to a type IWiaItem (WIA Version 1.0) or IWiaItem2 (WIA Version 2.0) object, representing the item that is having 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.
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 uses the ID passed through the uID parameter; otherwise, the pszID parameter id used regardless of whether a valid property ID has been passed through the uID parameter.
The property ID of the property.
This parameter is required only if the pszID parameter is NULL; otherwise, you can pass 0 for this parameter.
Pointer to a variable of type GUID containing the GUID property value to be set for the item specified by the pItem parameter.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
This feature is available in LEADTOOLS version 16 or higher.
Call [LWia:SetPropertyGUID to set the GUID value for any property of type VT_CLSID (for example, (WIA_IPA_FORMAT).
For an example, refer to LWia::GetPropertyGUID.