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LINEGENERATETONE
The LINEGENERATETONE structure contains information about a tone to be generated.
typedef struct linegeneratetone_tag {
DWORD dwFrequency;
DWORD dwCadenceOn;
DWORD dwCadenceOff;
DWORD dwVolume;
} LINEGENERATETONE, FAR *LPLINEGENERATETONE;
Members
dwFrequency
The frequency in Hertz of this tone component. A service provider may adjust
(round up or down) the frequency specified by the application to fit its
resolution.
dwCadenceOn
The "on" duration in milliseconds of the cadence of the custom tone to be
generated. Zero means no tone is generated.
dwCadenceOff
The "off" duration in milliseconds of the cadence of the custom tone to be
generated. Zero means no off time, that is, a constant tone.
dwVolume
The volume level at which the tone is to be generated. A value of 0x0000FFFF
represents full volume, and a value of 0x00000000 is silence.
Remarks
No extensions.
This structure is only used for the generation of tones. It is not used for
tone monitoring.
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