使用C++ Builder XE5获取Sensor值之Light Sensor

来源：互联网发布：网络关注提款风控编辑：程序博客网时间：2024/05/17 04:55

献上代码C++代码，仅供参考。若使用Delphi，请参考文献，http://blogs.embarcadero.com/davidi/2013/12/02/43032/

一定记得要安装FireMonkey哦。否则没有Fmx的库文件在里面。

//---------------------------------------------------------------------------#include <vcl.h>#pragma hdrstop#include "Unit1.h"//---------------------------------------------------------------------------#pragma package(smart_init)#pragma resource "*.dfm"TForm1 *Form1;TSensorArray   sa;TCustomLightSensor *myLightSensor;//---------------------------------------------------------------------------__fastcall TForm1::TForm1(TComponent* Owner): TForm(Owner){}//---------------------------------------------------------------------------void __fastcall TForm1::FormCreate(TObject *Sender){TSensorManager::Current->Activate();int count;int i;count = TSensorManager::Current->Count;Memo1->Clear();for (i=0; i <count; i++) {Memo1->Lines->Add(TSensorManager::Current->Sensors[i]->Name);}sa  = TSensorManager::Current->GetSensorsByCategory(TSensorCategory::Light);if (sa.Length!=0) {myLightSensor = static_cast<TCustomLightSensor*>(sa[0]);Label1->Caption = FloatToStr(myLightSensor->Lux);}//    Label1->Caption = ls->Lux;}//---------------------------------------------------------------------------void __fastcall TForm1::Timer1Timer(TObject *Sender){if (sa.Length !=0){Label1->Caption = FloatToStr(myLightSensor->Lux);}}//---------------------------------------------------------------------------

头文件

//---------------------------------------------------------------------------#ifndef Unit1H#define Unit1H//---------------------------------------------------------------------------#include <System.Classes.hpp>#include <Vcl.Controls.hpp>#include <Vcl.StdCtrls.hpp>#include <Vcl.Forms.hpp>#include <Vcl.ExtCtrls.hpp>#include <Fmx.Sensors.hpp>//---------------------------------------------------------------------------class TForm1 : public TForm{__published:// IDE-managed ComponentsTMemo *Memo1;TLabel *Label1;Vcl::Extctrls::TTimer *Timer1;void __fastcall FormCreate(TObject *Sender);void __fastcall Timer1Timer(TObject *Sender);private:// User declarationspublic:// User declarations__fastcall TForm1(TComponent* Owner);};//---------------------------------------------------------------------------extern PACKAGE TForm1 *Form1;//---------------------------------------------------------------------------#endif

1 0