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CashDrawer Class

2/27/2008

Defines the programmatic interface for a UPOS Cash Drawer device.

Namespace: Microsoft.PointOfService
Assembly: Microsoft.PointOfService (in microsoft.pointofservice.dll)

Syntax

'Declaration
Public MustInherit Class CashDrawer
    Inherits PosCommon
public abstract class CashDrawer : PosCommon
public ref class CashDrawer abstract : public PosCommon
public abstract class CashDrawer extends PosCommon
public abstract class CashDrawer extends PosCommon

Remarks

The Cash Drawer device always supports a command to open the cash drawer.

The cash drawer may have the following additional capabilities:

  • Drawer status reporting: Can determine whether a particular drawer is open or closed in environments where the drawer is the only drawer available through a hardware port.

  • Drawer unique status reporting: Can determine whether a particular drawer is open or closed in environments where more than one drawer can be accessed through the same hardware port.

The cash drawer is a shareable device. Its device sharing rules are as follows:

  • After you open and enabling the device, the application may access all properties and methods and receives status update events.

  • If more than one application has opened and enabled the device, all applications may access its properties and methods. Status update events are raised to all the applications.

  • If one application claims the cash drawer, then only that application may call the OpenDrawer and WaitForDrawerClose methods. This feature provides a degree of security, because these methods may effectively be restricted to the main application if that application claims the device at startup.

Inheritance Hierarchy

System.Object
   Microsoft.PointOfService.PosDevice
     Microsoft.PointOfService.PosCommon
      Microsoft.PointOfService.CashDrawer
         Microsoft.PointOfService.BasicServiceObjects.CashDrawerBasic

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread-safe. Any instance members are not guaranteed to be thread-safe.

See Also

Reference

CashDrawer Members
Microsoft.PointOfService Namespace