ABLE Ap1400 - The Usbprintdll Interface

Ref: "Ap1400ProgGuide1_2.docx" Page 26 of 42
Document Revision: “1.2”
Document Date: “9 Apr. 2013”
8. The USBPrintDLL interface.
The following sections describe the functions provided by USBPrintDLL, the arguments required, and
the return values.
Name
Function
Page
GetDllVersion Get the USBPrintDll full version information 25
DllInitialise Initialise the USBPrint subsystem and LIBUSB drivers 26
EnumPrinters Enumerates all the available USB printers with an ABLE vendor ID 27
GetEnumPrinterCount Gets the number of printers currently in an enumerated state 28
ClearEnumList Clears all enumerations of printer on the USB 29
GetVendor Gets the vendor ID of an enumerated device 30
GetProduct Gets the product ID of an enumerated device 31
GetName Gets the enumerated name of an enumerated device 32
OpenDevice Opens a device and prepares it to send/receive data 33
CloseDevice Closes and releases a device and associated handle 34
SendData Send data to a device 35
ReadData Read data transmitted from a device 36
SendCtrl Send a control request or control data to a device 37
SendStatusReq Get the current device status byte 39
KrnlSendData Send data without flow control 40