| Platform SDK: TAPI |
Gets the number of digits in the existing card number.
HRESULT get_NumberOfDigits( long *plDigits );
| Value | Meaning |
|---|---|
| S_OK | Method succeeded. |
| E_INVALIDARG | The plDigits parameter is not a valid pointer. |
| E_POINTER | The plDigits parameter is not a valid pointer. |
| E_OUTOFMEMORY | Insufficient memory exists to perform the operation. |
The card number itself is not returned for security reasons. The application can use this information to insert filler bytes into a text control in "password" mode to show that a number exists.
Windows NT/2000: Requires Windows 2000.
Version: Requires TAPI 3.0 or later.
Header: Declared in Tapi3.h.
Library: Use T3iid.lib.