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155 lines
4.9 KiB
155 lines
4.9 KiB
/*
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* INTERNAL.H
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*
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* Point-of-Sale Control Panel Applet
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*
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* Author: Ervin Peretz
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*
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* (c) 2001 Microsoft Corporation
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*/
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#define USE_OVERLAPPED_IO FALSE
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typedef struct posDevice {
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#define POSCPL_SIG 'CsoP'
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DWORD sig;
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LIST_ENTRY listEntry;
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/*
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* Device type, identified by dialog
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* id for the device type
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* (e.g. IDD_POS_CASHDRAWER_DLG).
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*/
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DWORD dialogId;
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PHIDP_PREPARSED_DATA hidPreparsedData;
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HIDD_ATTRIBUTES hidAttrib;
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HIDP_CAPS hidCapabilities;
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HWND hDlg;
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HANDLE hThread;
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PUCHAR readBuffer;
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PUCHAR writeBuffer;
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HANDLE devHandle;
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WCHAR pathName[MAX_PATH];
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#if USE_OVERLAPPED_IO
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OVERLAPPED overlappedReadInfo;
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NTSTATUS overlappedReadStatus;
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DWORD overlappedReadLen;
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HANDLE overlappedReadEvent;
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OVERLAPPED overlappedWriteInfo;
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NTSTATUS overlappedWriteStatus;
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DWORD overlappedWriteLen;
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HANDLE overlappedWriteEvent;
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#endif
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} posDevice;
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/*
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* These are non-standard vendor usage values and codes
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* used by APG Cash Drawer.
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*/
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#define USAGE_PAGE_CASH_DEVICE 0x0F0
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#define USAGE_CASH_DRAWER 0x0F1
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#define USAGE_CASH_DRAWER_NUMBER 0x0F2
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#define USAGE_CASH_DRAWER_SET 0x0F3
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#define USAGE_CASH_DRAWER_STATUS 0x0F4
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enum cashDrawerStates {
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DRAWER_STATE_OPEN = 1,
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DRAWER_STATE_CLOSED_READY = 2,
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DRAWER_STATE_CLOSED_CHARGING = 3,
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DRAWER_STATE_LOCKED = 4,
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};
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/*
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* List macros -- not defined in winnt.h for some reason.
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*/
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#define InitializeListHead(ListHead) (\
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(ListHead)->Flink = (ListHead)->Blink = (ListHead))
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#define IsListEmpty(ListHead) \
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((ListHead)->Flink == (ListHead))
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#define RemoveHeadList(ListHead) \
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(ListHead)->Flink;\
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{RemoveEntryList((ListHead)->Flink)}
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#define RemoveTailList(ListHead) \
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(ListHead)->Blink;\
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{RemoveEntryList((ListHead)->Blink)}
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#define RemoveEntryList(Entry) {\
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PLIST_ENTRY _EX_Blink;\
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PLIST_ENTRY _EX_Flink;\
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_EX_Flink = (Entry)->Flink;\
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_EX_Blink = (Entry)->Blink;\
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_EX_Blink->Flink = _EX_Flink;\
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_EX_Flink->Blink = _EX_Blink;\
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}
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#define InsertTailList(ListHead,Entry) {\
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PLIST_ENTRY _EX_Blink;\
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PLIST_ENTRY _EX_ListHead;\
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_EX_ListHead = (ListHead);\
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_EX_Blink = _EX_ListHead->Blink;\
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(Entry)->Flink = _EX_ListHead;\
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(Entry)->Blink = _EX_Blink;\
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_EX_Blink->Flink = (Entry);\
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_EX_ListHead->Blink = (Entry);\
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}
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#define InsertHeadList(ListHead,Entry) {\
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PLIST_ENTRY _EX_Flink;\
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PLIST_ENTRY _EX_ListHead;\
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_EX_ListHead = (ListHead);\
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_EX_Flink = _EX_ListHead->Flink;\
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(Entry)->Flink = _EX_Flink;\
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(Entry)->Blink = _EX_ListHead;\
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_EX_Flink->Blink = (Entry);\
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_EX_ListHead->Flink = (Entry);\
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}
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/*
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* Function prototypes
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*/
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VOID LaunchPOSDialog(HWND hwndCPl);
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INT_PTR APIENTRY POSDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
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INT_PTR APIENTRY NullPOSDlgProc(HWND hDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
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posDevice *NewPOSDevice(DWORD dialogId, HANDLE devHandle, PWCHAR devPath, PHIDP_PREPARSED_DATA pHidPreparsedData, PHIDD_ATTRIBUTES pHidAttrib, HIDP_CAPS *pHidCapabilities);
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VOID DestroyPOSDevice(posDevice *posDev);
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VOID EnqueuePOSDevice(posDevice *posDev);
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VOID DequeuePOSDevice(posDevice *posDev);
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VOID OpenAllHIDPOSDevices();
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VOID IntToWChar(WCHAR *buf, DWORD x);
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VOID HexToWChar(WCHAR *buf, DWORD x);
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ULONG WStrNCpy(WCHAR *dest, const WCHAR *src, ULONG maxWChars);
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ULONG AsciiToWChar(WCHAR *dest, const char *src, ULONG maxChars);
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posDevice *GetDeviceByHDlg(HWND hDlg);
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VOID LaunchDeviceInstanceThread(posDevice *posDev);
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DWORD __stdcall DeviceInstanceThread(void *context);
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BOOL SetCashDrawerState(posDevice *posDev, enum cashDrawerStates newState);
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#if USE_OVERLAPPED_IO
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VOID CALLBACK OverlappedReadCompletionRoutine(DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped);
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VOID CALLBACK OverlappedWriteCompletionRoutine(DWORD dwErrorCode, DWORD dwNumberOfBytesTransfered, LPOVERLAPPED lpOverlapped);
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#endif
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/*
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* Externs
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*/
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extern HANDLE g_hInst;
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extern ULONG numDeviceInstances;
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extern LIST_ENTRY allPOSDevicesList;
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