twain协议,传输文件大小达到200MB时采用文件传输模式
This commit is contained in:
parent
6081a5c6c0
commit
4ca44a6024
|
@ -1155,7 +1155,11 @@ HGResult HGTwainDSImpl::ImageNativeXfer(HGUInt type, HGUInt origin, HGImage* ima
|
||||||
return HGTWAIN_ERR_FAIL;
|
return HGTWAIN_ERR_FAIL;
|
||||||
}
|
}
|
||||||
|
|
||||||
#ifdef _WIN64
|
HGResult ret = HGBASE_ERR_FAIL;
|
||||||
|
int fileSize = info.ImageWidth * info.ImageLength * info.BitsPerPixel / 8;
|
||||||
|
|
||||||
|
if (fileSize > 200 * 1024 * 1024)
|
||||||
|
{
|
||||||
HANDLE hMem = NULL;
|
HANDLE hMem = NULL;
|
||||||
if (TWRC_XFERDONE != m_dsmImpl->m_pDSMProc(&m_dsmImpl->m_AppId, &m_iden, DG_IMAGE, DAT_IMAGENATIVEXFER, MSG_GET, &hMem))
|
if (TWRC_XFERDONE != m_dsmImpl->m_pDSMProc(&m_dsmImpl->m_AppId, &m_iden, DG_IMAGE, DAT_IMAGENATIVEXFER, MSG_GET, &hMem))
|
||||||
{
|
{
|
||||||
|
@ -1163,7 +1167,7 @@ HGResult HGTwainDSImpl::ImageNativeXfer(HGUInt type, HGUInt origin, HGImage* ima
|
||||||
}
|
}
|
||||||
|
|
||||||
HGStream stream = NULL;
|
HGStream stream = NULL;
|
||||||
HGResult ret = HGBase_CreateDIBStream(hMem, &stream);
|
ret = HGBase_CreateDIBStream(hMem, &stream);
|
||||||
GlobalFree(hMem);
|
GlobalFree(hMem);
|
||||||
if (HGBASE_ERR_OK != ret)
|
if (HGBASE_ERR_OK != ret)
|
||||||
{
|
{
|
||||||
|
@ -1172,7 +1176,9 @@ HGResult HGTwainDSImpl::ImageNativeXfer(HGUInt type, HGUInt origin, HGImage* ima
|
||||||
|
|
||||||
ret = HGBase_CreateImageFromStream(stream, NULL, type, origin, image);
|
ret = HGBase_CreateImageFromStream(stream, NULL, type, origin, image);
|
||||||
HGBase_DestroyStream(stream);
|
HGBase_DestroyStream(stream);
|
||||||
#else
|
}
|
||||||
|
else
|
||||||
|
{
|
||||||
HGChar tmpFile[260];
|
HGChar tmpFile[260];
|
||||||
HGBase_GetTmpFileName("bmp", tmpFile, 260);
|
HGBase_GetTmpFileName("bmp", tmpFile, 260);
|
||||||
|
|
||||||
|
@ -1189,9 +1195,10 @@ HGResult HGTwainDSImpl::ImageNativeXfer(HGUInt type, HGUInt origin, HGImage* ima
|
||||||
return HGTWAIN_ERR_FAIL;
|
return HGTWAIN_ERR_FAIL;
|
||||||
}
|
}
|
||||||
|
|
||||||
HGResult ret = HGBase_CreateImageFromFile(tmpFile, NULL, type, origin, image);
|
ret = HGBase_CreateImageFromFile(tmpFile, NULL, type, origin, image);
|
||||||
HGBase_DeleteFile(tmpFile);
|
HGBase_DeleteFile(tmpFile);
|
||||||
#endif
|
}
|
||||||
|
|
||||||
return ret;
|
return ret;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue