public static BTSTATUS BT_BrowseServices(BLUETOOTH_DEVICE_INFO DeviceInfo, bool bBrowseAllServices, out GENERAL_SERVICE_INFO[] ServiceInfos)
{
int DeviceInfoSize = Marshal.SizeOf(DeviceInfo);
IntPtr DeviceInfoPtr = Marshal.AllocHGlobal(DeviceInfoSize);
Marshal.StructureToPtr(DeviceInfo, DeviceInfoPtr, false);
GENERAL_SERVICE_INFO ServiceInfo = new GENERAL_SERVICE_INFO();
int ServiceInfoCount = 16;
int ServiceInfoSize = Marshal.SizeOf(ServiceInfo);
int ServiceInfosSize = ServiceInfoSize * ServiceInfoCount;
IntPtr ServiceInfosPtr = Marshal.AllocHGlobal(ServiceInfosSize);
Marshal.StructureToPtr(ServiceInfo, ServiceInfosPtr, false);
ServiceInfoCount = 0;
BTSTATUS result = NativeMethods.BT_BrowseServices(
DeviceInfoPtr,
bBrowseAllServices,
ref ServiceInfosSize,
ServiceInfosPtr);
ServiceInfoCount = ServiceInfosSize / ServiceInfoSize;
ServiceInfos = new GENERAL_SERVICE_INFO[ServiceInfoCount];
for (int i = 0; i < ServiceInfoCount; i++)
{
ServiceInfos[i] = (GENERAL_SERVICE_INFO)Marshal.PtrToStructure(new IntPtr(ServiceInfosPtr.ToInt64() + i * ServiceInfoSize), typeof(GENERAL_SERVICE_INFO));
}
return(result);
}
public static BTSTATUS BT_InquireDevices(INQUIRY ucInqMode, byte ucInqTimeLen, out BLUETOOTH_DEVICE_INFO[] deviceInfos)
{
NativeMethods.BLUETOOTH_DEVICE_INFO DeviceInfo = new BLUETOOTH_DEVICE_INFO();
long DeviceInfoSize = Marshal.SizeOf(DeviceInfo);
int DeviceInfoCount = 1;
long DeviceInfosSize = DeviceInfoCount * DeviceInfoSize;
IntPtr DeviceInfosPtr = Marshal.AllocHGlobal((int)DeviceInfosSize);
// Copy the struct to unmanaged memory.
Marshal.StructureToPtr(DeviceInfo, DeviceInfosPtr, false);
BTSTATUS result = NativeMethods.BT_InquireDevices(
ucInqMode,
ucInqTimeLen,
ref DeviceInfosSize,
DeviceInfosPtr);
DeviceInfoCount = (int)(DeviceInfosSize / DeviceInfoSize);
deviceInfos = new BLUETOOTH_DEVICE_INFO[DeviceInfoCount];
for (int i = 0; i < DeviceInfoCount; i++)
{
DeviceInfo = (BLUETOOTH_DEVICE_INFO)Marshal.PtrToStructure(new IntPtr(DeviceInfosPtr.ToInt64() + i * DeviceInfoSize), typeof(BLUETOOTH_DEVICE_INFO));
deviceInfos[i] = DeviceInfo;
}
return(result);
}
