directory not found ...library/privateframeworks and E2597 ld: file not found FileProvider for architecture arm64

Here and Here and Here

C++ Builder XE7 LME288 Error

https://stackoverflow.com/questions/28929516/c-builder-xe7-lme288-error

Visual C++ Predefined Macros

https://msdn.microsoft.com/zh-tw/library/b0084kay.aspx

[OpenCV][C++ Builder] Use OpenCV in C++ Builder? Or via Delphi?

[Reference] https://github.com/Laex/Delphi-OpenCV

1. Download Delphi-OpenCV.
2. Generate OpenCV C++ header (.hpp) files from .pas files.
3. Convert OpenCV library files (.lib) from Coff to OMF using ( Coff2OMF.exe).

[C++ Builder] String Replace

[Reference]
http://docwiki.embarcadero.com/Libraries/Tokyo/en/System.SysUtils.StringReplace

BCB的字串替換

extern DELPHI_PACKAGE System::UnicodeString __fastcall StringReplace(const System::UnicodeString Source, const System::UnicodeString OldPattern, const System::UnicodeString NewPattern, TReplaceFlags Flags)/* overload */;

[Android Bluetooth][C++ Builder] segmentation fault 11

[Solution]

Add Bluetooth and Bluetooth Admin permission.

[C++ Builder] Edit language resource

http://docwiki.embarcadero.com/RADStudio/Berlin/en/Editing_Resource_Files_in_the_Translation_Manager

[C++] Use of undeclared identifier in C++ with templates and inheritance

Add

this->

before the identifier.

[Arduino] Sony Camera Remote Controller (IR)

最簡單的方式，只需要一個按鍵和一個紅外線 LED，接線如下：

LED正極：Pin 13

LED負極：GND

按鈕二端分別接 Pin 2 和 5V

線路圖如下：

程式使用 Multi Camera IR Control 提供的相機 IR 函式庫  ，必須先下載匯入 Arduino 的函式庫，程式碼如下：

#include <multiCameraIrControl.h>

Sony cameraIR(13);    //宣告 Sony 像機物件，並設定 LED 正極接 Pin13

int buttonPin = 2;    //按鈕的接腳

int buttonState = 0;

void setup(){

  pinMode(buttonPin, INPUT);

}

void loop(){

  buttonState = digitalRead(buttonPin);

  if( buttonState == LOW) {

    cameraIR.shutterNow();

  }

}

上面的線路沒有用電阻降壓保誤，可能會把 LED 燒壞，另一種比較保險的接線如下，用一個10KΩ電阻連接 LED 負極和按鍵。

[Reference] 

1. Multi Camera IR Control

2. Arduino範例02：使用按鈕鍵輸入訊號控制LED燈