phoneGetButtonInfo
The phoneGetButtonInfo
function returns information about the specified button.
LONG phoneGetButtonInfo(
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HPHONE hPhone, |
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DWORD dwButtonLampID, |
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LPPHONEBUTTONINFO lpButtonInfo |
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); |
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Parameters
hPhone
A handle to
the open phone device.
dwButtonLampID
A button on
the phone device.
lpButtonInfo
A pointer to
a variably sized structure of type PHONEBUTTONINFO. This data structure
describes the mode, the function, and provides additional descriptive text
corresponding to the button.
Return Values
Returns zero
if the request is successful or a negative error number if an error has
occurred. Possible return values are:
PHONEERR_INVALPHONEHANDLE,
PHONEERR_NOMEM, PHONEERR_INVALBUTTONLAMPID, PHONEERR_RESOURCEUNAVAIL,
PHONEERR_INVALPOINTER, PHONEERR_OPERATIONFAILED, PHONEERR_INVALPHONESTATE,
PHONEERR_STRUCTURETOOSMALL, PHONEERR_OPERATIONUNAVAIL, PHONEERR_UNINITIALIZED.
See Also