Determines the transfer mode.
TWAIN_TRANSFER_FILE = 0x001,
TWAIN_TRANSFER_MEMORY = 0x002,
TWAIN_TRANSFER_NATIVE = 0x004,
Use the file transfer mode.
Use the memory transfer mode.
Use the native transfer mode.
If the Transfer Mode is TWAIN_TRANSFER_FILE, TWAIN handles output and valid values are confined to the TWAIN-supported file formats. See the formats listed for the TRANSFEROPTIONS.uFileFormat.
If the Transfer Mode is TWAIN_TRANSFER_MEMORY or TWAIN_TRANSFER_NATIVE, LEAD handles output and can be any file format LEADTOOLS supports. Refer to Formats of Output Files for valid values.
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms