Use #define from .ino in library

Using Arduino Programming Questions
#1

Hey guys,

i have a question concerning using a #define made in the sketch file in my library.
I want the user of my lib be able to set a debug #define which decides if he wants debug output or not.
(eg. #define DEBUGGING true)

To achieve this i have the following code:

.ino file:

/// PRE DEFINES
/// ============================================================================
/// 
#define INOMATION_AUTH_KEY "bWF4OjhBdHJKRk5hbXBMYzhpOEpURQ=="
#define INOMATION_DEBUGGING true

/// Webduino Settings. Decomment to activate
#define WEBDUINO_SERIAL_DEBUGGING 			2
// #define WEBDUINO_READ_TIMEOUT_IN_MS 		1000
// #define WEBDUINO_COMMANDS_COUNT 			8
// #define WEBDUINO_URL_PATH_COMMAND_LENGTH 8
// #define WEBDUINO_FAIL_MESSAGE 			"<h1>EPIC FAIL</h1>"
// #define WEBDUINO_AUTH_REALM 				"Webduino"
// #define WEBDUINO_AUTH_MESSAGE 			"<h1>401 Unauthorized</h1>"
// #define WEBDUINO_SERVER_ERROR_MESSAGE 	"<h1>500 Internal Server Error</h1>"
// #define WEBDUINO_OUTPUT_BUFFER_SIZE 		32
// #define WEBDUINO_FAVICON_DATA { 0x00, 0x00, 0x01, 0x00, 0x01, 0x00, 0x10, \
//                                 0x10, 0x02, 0x00, 0x01, 0x00, 0x01, 0x00, \
//                                 0xb0, 0x00, 0x00, 0x00, 0x16, 0x00, 0x00, \
//                                 0x00, 0x28, 0x00, 0x00, 0x00, 0x10, 0x00, \
//                                 0x00, 0x00, 0x20, 0x00, 0x00, 0x00, 0x01, \
//                                 0x00, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, \
//                                 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, \
//                                 0x00, 0xff, 0xff, 0x00, 0x00, 0xcf, 0xbf, \
//                                 0x00, 0x00, 0xc7, 0xbf, 0x00, 0x00, 0xc3, \
//                                 0xbf, 0x00, 0x00, 0xc1, 0xbf, 0x00, 0x00, \
//                                 0xc0, 0xbf, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0xc0, 0xbf, 0x00, 0x00, 0xc1, 0xbf, \
//                                 0x00, 0x00, 0xc3, 0xbf, 0x00, 0x00, 0xc7, \
//                                 0xbf, 0x00, 0x00, 0xcf, 0xbf, 0x00, 0x00, \
//                                 0xff, 0xff, 0x00, 0x00, 0xff, 0xff, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, \
//                                 0x00, 0x00 }


/// INCLUDES
/// ============================================================================
/// 
/// Standrad Arduino Libraries
#include <VirtualWire.h>
#include <Ethernet.h>
#include <SPI.h>
#include <RCSwitch.h>
#include <WebServer.h>

/// Non-Standard Arduino Libraries. If you dont have them, download them.
#include "Inomation.h"

.h lib file:

/// Check if the Inomation Library is already included
#ifndef INOMATION_H_
#define INOMATION_H_
/// Needed for non -multiple integration of webduino implementation
#define WEBDUINO_NO_IMPLEMENTATION


/// 
/// INCLUDES and STRUCTS
/// ============================================================================
///
/// Include the main Arduino library.
#include "Arduino.h"

/// Including standard Arduino libraries needed in the project.
#include "SPI.h"
#include "VirtualWire.h"
#include "Ethernet.h"
#include "RCSwitch.h"
#include "WebServer.h"


/// DEFINITIONS
/// ============================================================================
///
#ifndef INOMATION_DEBUGGING
#define INOMATION_DEBUGGING false
#endif

The thing is, it isnt working. The output option always is set to false… so he does not overtake the true from the ino file.

Thanks for your help.

#2

so he does not overtake the true from the ino file.

Correct. The #define in the sketch has nothing to do with the name in the library.

There have been many attempts to do what you want to do with #defines. None of them have worked.

#3

Ok. I already thought that there may be no solution for that. That was my last try :D

But maybe you guys have another neat solution for passing library settings to a library by the user ;)

#4

How about adding a second constructor with an additional boolean argument. User sets it to true if they want debug on.

Or add a setDebug method to the class.

#5

I will have a lot of settings. That would be a big and ugly constructor :D

#6

Ah, ok, so it is not just debug on or off?

#7

Nope. Mac-Address, IP, Debug, txPin, rxPin, etc. :D

#8

MaxBec: Nope. Mac-Address, IP, Debug, txPin, rxPin, etc. :D

It sounds like you need a different approach. Using #defines for all that is not the correct approach.

Have methods in your class that can be called to set that stuff.

#9