LINE_CURRENTSYSTEMCHANGE
A LINE_DEVSPECIFIC message with dwMessageType set to LINE_CURRENTSYSTEMCHANGE is sent to the application every time the current system changes.
Note You can use the function lineGetCurrentSystemType to return the same information on demand.
#define LINE_CURRENTSYSTEMCHANGE
dwParam1 = LINE_CURRENTSYSTEMCHANGE;
dwParam2;
dwParam3;
Parameters
- dwParam1
The type of the message, in this case LINE_CURRENTSYSTEMCHANGE. - dwParam2
The new system coverage type. See the Remarks section for a complete list of possible values. - dwParam3
Unused.
Remarks
The following table contains details about the Line System Type constants that can be contained in the parameter dwParam2.
| Constant | Protocol | Value | Decscription |
|---|---|---|---|
| LINESYSTEMTYPE_NONE | CDMA | 0x00000000 | No air interface standard |
| LINESYSTEMTYPE_IS95A | CDMA | 0x00000001 | IS95A air interface standard |
| LINESYSTEMTYPE_IS95B | CDMA | 0x00000002 | IS95B air interface standard |
| LINESYSTEMTYPE_1XRTTPACKET | CDMA | 0x00000004 | 1XRTTPACKET one-carrier radio-transmission technology |
| LINESYSTEMTYPE_GSM | GSM | 0x00000008 | Global System for Mobile Communications (GSM) |
| LINESYSTEMTYPE_GPRS | GSM | 0x00000010 | General Packet Radio Service (GPRS) |
Requirements
Pocket PC: Pocket PC 2002 and later.
Smartphone: Smartphone 2002 and later.
OS Versions: Windows CE 3.0 and later.
Header: Extapi.h.
Library: Cellcore.lib.
See Also
Extended TAPI Messages | LINE_CURRENTLINECHANGE | lineGetCurrentSystemType
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