System.Bluetooth.Components.TBluetoothLE.DiscoverDevices
Delphi
function DiscoverDevices(ATimeout: Integer): Boolean; overload;
function DiscoverDevices(ATimeout: Integer; const AList: TBluetoothUUIDsList): Boolean; overload;
function DiscoverDevices(ATimeout: Integer; AList: array of TBluetoothUUID): Boolean; overload;
function DiscoverDevices(ATimeout: Cardinal; const ABluetoothLEScanFilterList: TBluetoothLEScanFilterList): Boolean; overload;
C++
bool __fastcall DiscoverDevices(int ATimeout)/* overload */;
bool __fastcall DiscoverDevices(int ATimeout, System::Bluetooth::TBluetoothUUIDsList* const AList)/* overload */;
bool __fastcall DiscoverDevices(int ATimeout, GUID *AList, const int AList_High)/* overload */;
bool __fastcall DiscoverDevices(unsigned ATimeout, System::Bluetooth::TBluetoothLEScanFilterList* const ABluetoothLEScanFilterList)/* overload */;
Properties
| Type | Visibility | Source | Unit | Parent |
|---|---|---|---|---|
| function | public | System.Bluetooth.Components.pas System.Bluetooth.Components.hpp |
System.Bluetooth.Components | TBluetoothLE |
Description
Starts a discovery operation to find remote devices using Bluetooth Low Energy.
DiscoverDevices always expects a Timeout argument, which is how much time you want to spend discovering remote devices using Bluetooth Low Energy.
You may also provide an AList argument, an array or list of UUIDs of services to look for in remote devices. If you provide a list of service UUIDs, the discovery operation ignores any remote device that does not provide at least one service with an UUID from the specified list.
When the discovery operation finishes, the OnEndDiscoverDevices event occurs. OnEndDiscoverDevices provides a list of discovered remote devices.
DiscoverDevices returns True if the discovery starts successfully, or False if something prevents the discovery from starting.
Platform Support
| Platform | Notes |
|---|---|
|
Windows |
|
|
OS X |
|
|
iOS |
|
|
Android |
|