BOOL CTwain::Acquire(int numImages /*= 1*/, BOOL bShowUI)
{
if (DSOpen() || OpenSource())
{
TW_UINT16 nCut = 1;
BOOL ret_value = SetCapability(ICAP_AUTOMATICBORDERDETECTION, nCut, TRUE); //自动裁剪
TW_UINT16 nRotate = 1;
ret_value = SetCapability(ICAP_AUTOMATICDESKEW, nRotate, TRUE); //自动纠偏
#if 0
TW_UINT16 nBright = (135 - 128) / 0.125;
ret_value = SetCapability(ICAP_BRIGHTNESS, nBright, TRUE); //亮度调节
TW_UINT16 nContrast = (135 - 128) / 0.125;
ret_value = SetCapability(ICAP_CONTRAST, nContrast, TRUE); //对比度调节
#endif
if (SetImageCount(numImages))
{
if (EnableSource(bShowUI))
{
return TRUE;
}
}
}
return FALSE;
}
/*
Called to acquire images from the source. parameter numImages i the
numberof images that you an handle concurrently
*/
BOOL CTwain::Acquire(int numImages)
{
if(DSOpen() || OpenSource())
{
if(SetImageCount(numImages))
{
if(EnableSource())
{
return TRUE;
}
}
}
return FALSE;
}
/** Called to acquire images from the source. parameter numImages is the
number of images that you an handle concurrently
*/
bool TwainIface::Acquire(int numImages)
{
if(DSOpen() || OpenSource())
{
if(SetImageCount(numImages))
{
if(EnableSource())
{
//ReleaseTwain();
//TW_IMAGEINFO info;
//GetImageInfo(info);
//GetImage(info);
return true;
}
}
}
return false;
}
/*
Called to acquire images from the source. parameter numImages i the
numberof images that you an handle concurrently
*/
BOOL CTwain::Acquire(int numImages, TW_UINT16 duplex, TW_UINT16 size, TW_UINT16 pixel, TW_UINT16 resolution, BOOL bShowUI, int nAutoCut)
{
if(DSOpen() || OpenSource())
{
_bTwainContinue = TRUE;
// BOOL ret_value=SetCapability(CAP_DUPLEXENABLED,duplex,TRUE);
if (duplex == 1)
duplex = TRUE;
else
duplex = FALSE; // CAP_DUPLEX
BOOL ret_value = SetOneValueCapability(CAP_DUPLEXENABLED, TWTY_BOOL, duplex); //单双面扫描控制 //duplex, TRUE
// ret_value = SetCapability(CAP_DUPLEX, duplex, TRUE);
ret_value=SetCapability(ICAP_SUPPORTEDSIZES,size,TRUE);
ret_value=SetCapability(ICAP_PIXELTYPE,pixel,TRUE);
ret_value=SetResolution(ICAP_XRESOLUTION,resolution);
ret_value=SetResolution(ICAP_YRESOLUTION,resolution);
ret_value = SetCapability(ICAP_AUTOMATICBORDERDETECTION, nAutoCut, TRUE); //自动裁剪
TW_UINT16 nRotate = 1;
ret_value = SetCapability(ICAP_AUTOMATICDESKEW, nRotate, TRUE); //自动纠偏
#if 0
TW_UINT16 nBright = (135 - 128) / 0.125;
ret_value = SetCapability(ICAP_BRIGHTNESS, nBright, TRUE); //亮度调节
TW_UINT16 nContrast = (135 - 128) / 0.125;
ret_value = SetCapability(ICAP_CONTRAST, nContrast, TRUE); //对比度调节
#endif
if(SetImageCount(numImages))
{
if (EnableSource(bShowUI))
{
return TRUE;
}
}
}
return FALSE;
}
int CTwain::BeginAcquire(HWND hwnd)
{
nStartState = State();
hwnd = DefWnd(hwnd);
if (State() >= SOURCE_MANAGER_OPEN || OpenSourceManager(hwnd)) {
if (State() >= SOURCE_OPEN || (OpenDefaultSource() && NegotiateCapabilities())) {
if (State() >= SOURCE_ENABLED || EnableSource(hwnd)) {
return TRUE;
} else {
ATLTRACE_ERROR(TWERR_ENABLE_SOURCE);
}
} else {
ATLTRACE_ERROR(TWERR_OPEN_SOURCE);
}
} else {
ATLTRACE_ERROR(TWERR_OPEN_DSM);
}
DropToState(nStartState);
return FALSE;
} // BeginAcquire
/** Re-Opens a Data Source */
bool KSaneWidgetPrivate::ReOpenDialog()
{
//qDebug() << "ReOpenSource:" << m_hTwainDLL << m_pDSMProc << m_bDSMOpen << m_bDSOpen;
if (DSOpen()) {
// already open
return true;
}
// open the source
if (m_hTwainDLL && m_pDSMProc && m_bDSMOpen) {
m_bDSOpen = CallTwainProc(&m_AppId, NULL, DG_CONTROL, DAT_IDENTITY, MSG_OPENDS, (TW_MEMREF)&m_Source);
//qDebug() << "ReOpenSource() m_bDSOpen" << m_bDSOpen;
}
SetImageCount(TWCPP_ANYCOUNT);
if (DSOpen()) {
return EnableSource(true);
}
//else
return false;
}
/** Called to enable the Twain Acquire Dialog. This too can be
* overridden but is a helluva job. */
bool KSaneWidgetPrivate::OpenDialog()
{
EnableSource(true);
return true;
}
