#include "ltwrappr.h"
virtual L_INT LTwain::GetSources (uFlags, uStructSize)
L_UINT uFlags; |
optional flags |
L_UINT uStructSize; |
size of the LTWAINSOURCEINFO structure, in bytes |
Gets the available information for the TWAIN sources installed on the system.
Parameter | Description | |
uFlags | Flags that indicate what sources to get. Possible values are: | |
Value | Meaning | |
LTWAIN_SOURCE_ENUMERATE_ALL | [0x0000] Enumerates all the available sources. | |
LTWAIN_SOURCE_ENUMERATE_DEFAULT | [0x0001] Gets only the default source (currently selected). | |
uStructSize | Size of the LTWAINSOURCEINFO structure, in bytes, for versioning. Use sizeof(LTWAINSOURCEINFO). |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
Required DLLs and Libraries
LTTWN For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Functions: |
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Topics: |
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L_INT CMyTwain::SourceInfoCallBack(pLTWAINSOURCEINFO pSourceInfo)
{
L_TCHAR szBuffer[MAX_PATH];
memset(szBuffer, 0, sizeof(szBuffer));
wsprintf(szBuffer, TEXT("Source Name = %s\nProduct Family = %s\nManufacturer = %s\n"),
pSourceInfo->pszTwnSourceName,
pSourceInfo->pszTwnProductFamily,
pSourceInfo->pszTwnManufacturer);
MessageBox(NULL, szBuffer, TEXT("Source Info."), MB_OK);
return TWAIN_SUCCESS;
}
// initialize session and call this function
L_INT LTwain__GetSourcesExample(CMyTwain *MyClass)
{
L_INT nRet;
MyClass->EnableCallBack (TRUE);
nRet = MyClass->GetSources(LTWAIN_SOURCE_ENUMERATE_ALL , sizeof(LTWAINSOURCEINFO));
if (nRet != SUCCESS)
{
MessageBox (NULL, TEXT("Error during the enumeration procedure"), TEXT("ERROR"), MB_OK);
return nRet;
}
return SUCCESS;
}