User's Manual

Table Of Contents

6 Scanner Support—Chapter

163700 Series Color Mobile Computer User’s Manual

IBarCodeReaderControl::IssueBeep

This function causes the reader engine to generate a high beep, a low beep,

or a custom beep. The high beep and low beep are preconfigured beep

tones and durations. The custom beep allows the client to specify the fre-

quency and duration. The volume is the current volume setting. Note this

is not implemented.

Syntax

HRESULT IBarCodeReaderControl::IssueBeep( ITC_BEEP_SPEC

rgBeepRequests[], DWORD dwNumberOfBeeps );

Parameters

rgBeepRequests [in] Array of ITC_BEEP_SPEC structures that

identifies the beep type. The beep structure

is:

typedef struct tagITCBeepSpec

{

ITC_BEEP_TYPE eBeepType; // Identifies the type of beep

// Following fields used only if the beep type is ITC_CUSTOM_BEEP.

WORD wPitch; // Frequency, in Hz, of the beep.

WORD wOnDuration; // Duration, in milliseconds, of Beep On.

WORD wOffDuration; // Duration, in milliseconds, of Beep Off

// Beep Off is used to separate individual beeps

} ITC_BEEP_SPEC;

typedef enum tagITCBeepType

{

ITC_LOW_BEEP, // Issue the default low beep.

ITC_HIGH_BEEP, // Issue the default high beep.

ITC_CUSTOM_BEEP, // Issue a custom beep.

} ITC_BEEP_TYPE;

dwNumberOfBeeps [in] Identifies the total number of beeps in

rgBeepRequests.

Return Values

E_NOTIMPL as this function is not implemented.

Remarks

None.