/** Sets the number of images which can be accpeted by the application at one time
*/
bool TwainIface::SetImageCount(TW_INT16 nCount)
{
if(SetCapability(CAP_XFERCOUNT,(TW_UINT16)nCount,true))
{
m_nImageCount = nCount;
return true;
}
else
{
if(GetRC() == TWRC_CHECKSTATUS)
{
TW_UINT32 count;
if(GetCapability(CAP_XFERCOUNT, count))
{
nCount = (TW_INT16)count;
if(SetCapability(CAP_XFERCOUNT, nCount))
{
m_nImageCount = nCount;
return true;
}
}
}
}
return false;
}
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;
}
/*
Sets the number of images which can be accpeted by the application at one time
*/
BOOL CTwain::SetImageCount(TW_INT16 nCount)
{
if(SetCapability(CAP_XFERCOUNT,(TW_UINT16)nCount,TRUE))
{
m_nImageCount = nCount;
return TRUE;
}
else
{
if(GetRC() == TWRC_CHECKSTATUS)
{
TW_UINT32 count;
if(GetCapability(CAP_XFERCOUNT,count))
{
nCount = (TW_INT16)count;
if(SetCapability(CAP_XFERCOUNT,nCount))
{
m_nImageCount = nCount;
return TRUE;
}
}
}
}
return FALSE;
}
/*
Sets the capability of the Twain Data Source
*/
BOOL CTwain::SetCapability(TW_UINT16 cap,TW_UINT16 value,BOOL sign)
{
if(DSOpen())
{
TW_CAPABILITY twCap;
pTW_ONEVALUE pVal;
BOOL ret_value = FALSE;
twCap.Cap = cap;
twCap.ConType = TWON_ONEVALUE;
twCap.hContainer = GlobalAlloc(GHND,sizeof(TW_ONEVALUE));
if(twCap.hContainer)
{
pVal = (pTW_ONEVALUE)GlobalLock(twCap.hContainer);
pVal->ItemType = sign ? TWTY_INT16 : TWTY_UINT16;
pVal->Item = (TW_UINT32)value;
GlobalUnlock(twCap.hContainer);
ret_value = SetCapability(twCap);
GlobalFree(twCap.hContainer);
}
return ret_value;
}
return FALSE;
}
BOOL CTwain::SetOneValueCapability(TW_UINT16 cap, TW_UINT16 Type, TW_UINT16 value/*,BOOL sign*/)
{
if (DSOpen())
{
TW_CAPABILITY twCap;
pTW_ONEVALUE pVal;
BOOL ret_value = FALSE;
twCap.Cap = cap;
twCap.ConType = TWON_ONEVALUE;
twCap.hContainer = GlobalAlloc(GHND, sizeof(TW_ONEVALUE));
if (twCap.hContainer)
{
pVal = (pTW_ONEVALUE)GlobalLock(twCap.hContainer);
pVal->ItemType = Type;
pVal->Item = (TW_UINT32)value;
ret_value = SetCapability(twCap);
GlobalUnlock(twCap.hContainer);
GlobalFree(twCap.hContainer);
}
else
{
//AfxMessageBox("twCap.hContainer false");
}
return ret_value;
}
return FALSE;
}
void ProtocolModuleTaiga::ExtractCapabilitiesFromXml(std::string xml)
{
const std::string key = "<key>";
const std::string key_end = "</key>";
const std::string str = "<string>";
const std::string str_end = "</string>";
size_t key_pos = 0, key_end_pos = 0, str_pos = 0, str_end_pos = 0;
bool proceed = true;
while(proceed)
{
std::string name, url;
key_pos = xml.find(key, str_end_pos);
key_end_pos = xml.find(key_end, key_pos);
name = xml.substr(key_pos + key.length(), key_end_pos - key_pos - key.length());
str_pos = xml.find(str, key_end_pos);
str_end_pos = xml.find(str_end, str_pos);
url = xml.substr(str_pos + str.length(), str_end_pos - str_pos - str.length());
SetCapability(name, url);
if ((xml.find(key, str_end_pos) > xml.length()) ||
(xml.find(key, str_end_pos) == std::string::npos))
proceed = false;
}
}
/** Sets the number of images which can be accpeted by the application at one time */
bool KSaneWidgetPrivate::SetImageCount(TW_INT16 nCount)
{
if(SetCapability(CAP_XFERCOUNT,(TW_UINT16)nCount,true)) {
m_nImageCount = nCount;
return true;
}
else {
if(m_returnCode == TWRC_CHECKSTATUS) {
TW_UINT32 count;
if(GetCapability(CAP_XFERCOUNT, count)) {
nCount = (TW_INT16)count;
if(SetCapability(CAP_XFERCOUNT, nCount)) {
m_nImageCount = nCount;
return true;
}
}
}
}
return false;
}
static bool MakeWellKnownSIDAttributes(std::vector<SID_AND_ATTRIBUTES> &capabilities,std::vector<SHARED_SID> &capabilitiesSidList)
{
const WELL_KNOWN_SID_TYPE capabilitiyTypeList[] = {
WinCapabilityInternetClientSid, WinCapabilityInternetClientServerSid, WinCapabilityPrivateNetworkClientServerSid,
WinCapabilityPicturesLibrarySid, WinCapabilityVideosLibrarySid, WinCapabilityMusicLibrarySid,
WinCapabilityDocumentsLibrarySid, WinCapabilitySharedUserCertificatesSid, WinCapabilityEnterpriseAuthenticationSid,
WinCapabilityRemovableStorageSid,
};
for(auto type:capabilitiyTypeList) {
if (!SetCapability(type, capabilities, capabilitiesSidList)) {
return false;
}
}
return true;
}
/** Sets the capability of the Twain Data Source */
bool KSaneWidgetPrivate::SetCapability(TW_UINT16 cap, TW_UINT16 value, bool sign)
{
if(DSOpen()) {
TW_CAPABILITY twCap;
pTW_ONEVALUE pVal;
bool ret_value = false;
twCap.Cap = cap;
twCap.ConType = TWON_ONEVALUE;
twCap.hContainer = GlobalAlloc(GHND,sizeof(TW_ONEVALUE));
if(twCap.hContainer) {
pVal = (pTW_ONEVALUE)GlobalLock(twCap.hContainer);
pVal->ItemType = sign ? TWTY_INT16 : TWTY_UINT16;
pVal->Item = (TW_UINT32)value;
GlobalUnlock(twCap.hContainer);
ret_value = SetCapability(twCap);
GlobalFree(twCap.hContainer);
}
return ret_value;
}
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;
}
