References ▼
#include "lttwn.h"
L_LTTWN_API L_INT L_TwainGetVersion(pTwainVersion)
Gets the version of TWAIN that is currently being used for this session.
When this function returns, this parameter will be updated with the TWAIN version currently used by this TWAIN session. For possible values, refer to the TWAIN_VERSION enumeration.
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| != SUCCESS | An error occurred. Refer to Return Codes. |
Use this function to determine which version of TWAIN is currently being used by the TWAIN session.
Required DLLs and Libraries
L_INT TwainGetVersionExample(HTWAINSESSION g_hSession){L_INT nRet = TWAIN_SUCCESS;// Show the Twain Select Source UInRet = L_TwainSelectSource(g_hSession, NULL);if (nRet != SUCCESS){MessageBox (NULL, TEXT("Error occurred while selecting the source."),TEXT( "ERROR"), MB_OK);return nRet;}// Get the supported TWAIN version of the selected twain sourceTWAIN_VERSION TwainVersion;nRet = L_TwainGetVersion(&TwainVersion);if (nRet != SUCCESS){MessageBox (NULL, TEXT("Failed to get twain version"), TEXT("ERROR"), MB_OK);return nRet;}if(TwainVersion == TWAIN_VERSION1)MessageBox (NULL, TEXT("Currently using TWAIN 1.x version"), TEXT("INFORMATION"), MB_OK | MB_ICONINFORMATION);elseMessageBox (NULL, TEXT("Currently using TWAIN 2.x version"), TEXT("INFORMATION"), MB_OK | MB_ICONINFORMATION);return nRet;}