Gurus HELP please with SelectSource()

[nobutaka]

Hello:

I am trying to make an automated image acquisition, selecting one of many Twain drivers available. Let’s say I will search for the ‘FUJITSU’ string.

I’ve configured ‘ShowUI = FALSE’

I’ve modified this function.

BOOL CTwain::SelectSource()

{

memset(&m_Source,0,sizeof(m_Source));

if(!SourceSelected())

{

SelectDefaultSource();

}

if(CallTwainProc(&m_AppId,NULL,DG_CONTROL,DAT_IDENTITY,MSG_USERSELECT,&m_Source))

{

m_bSourceSelected = TRUE;

}

return m_bSourceSelected;

}

To this

BOOL CTwain::SelectSource2()

{

// add your header file /////////////////////////////////////////

TW_IDENTITY m_SourceList[256];

UINT m_nSources;

/////////////////////////////////////////////////////////////////





memset(m_SourceList, 0, 256 * sizeof(TW_IDENTITY));

m_nSources = 0;



if (CallTwainProc(&m_AppId, NULL, DG_CONTROL, DAT_IDENTITY, MSG_GETFIRST, m_SourceList))

{

m_nSources++;

for (int i = 1 ; i < 256 ; i++)

{

char * pch;

char * modeloScanner = "FUJITSU";



pch = strtok(m_SourceList[i-1].ProductName,modeloScanner );







if (pch != NULL  )

{

OpenSource(&m_SourceList[i-1]);

return TRUE;

}



if (CallTwainProc(&m_AppId, NULL, DG_CONTROL, DAT_IDENTITY, MSG_GETNEXT, &m_SourceList))

{

m_nSources++;

}

if (m_returnCode == TWRC_ENDOFLIST)

{

return TRUE;

}

}

}

else

{

return FALSE;

}

return TRUE;

}

Problem is that even though I get out from SelectSource() when I reach the desired DS, it keeps doing the scan through another scanner.

Anyone can help me?

Thanks in advance

[nobutaka]

I found my error.

Post the fixed code for future references.

BOOL CTwain::SelectSource2()

{

memset(&m_Source,0,sizeof(m_Source));

// add your header file /////////////////////////////////////////

TW_IDENTITY m_SourceList[256];

UINT m_nSources;

/////////////////////////////////////////////////////////////////





memset(m_SourceList, 0, 256 * sizeof(TW_IDENTITY));

m_nSources = 0;



if (CallTwainProc(&m_AppId, NULL, DG_CONTROL, DAT_IDENTITY, MSG_GETFIRST, m_SourceList))

{



m_nSources++;

for (int i = 1 ; i < 256 ; i++)

{

char * pch;

char * modeloScanner = "FUJITSU";



pch = strtok(m_SourceList[i-1].ProductName,modeloScanner );







if (pch != NULL  )

{

m_Source = m_SourceList[i-1];

m_bSourceSelected = TRUE;

return TRUE;

}



if (CallTwainProc(&m_AppId, NULL, DG_CONTROL, DAT_IDENTITY, MSG_GETNEXT, &m_SourceList))

{

m_nSources++;

}

if (m_returnCode == TWRC_ENDOFLIST)

{

return TRUE;

}

}

}

else

{

return FALSE;

}

return TRUE;

}

[Author]

Posts