Thread: Carbon help

I'm trying to develop a class to ease input from data fields in a carbon NIB reference.

I set up the constructor, and everything worked perfectly.

When I tried to add a method to read input from a text field, I started getting errors.

The thing compiles, but the application shuts down and exits "with signal 6, SIGABRT"

here's the code:

Code:

/*
 *  carbonGraphicIO.h
 *  
 *
 *  Created by Erik Schmidt on 3/25/05.
 *  Copyright 2005 Erik_Soft. All rights reserved.
 *
 *  Provides eased IO capability within text field in a carbon application
 *
 *  C++ version
 *
 */

#include <Carbon/Carbon.h>
#include <sstream>
#include <string>
#include <cstring>

using namespace std;

class DataField {
private:

	/*static ControlID ctrl;
	static CFStringRef textBuffer;
	static ostringstream textBufferConvert;*/

public:

	static ControlID ctrl;
	static CFStringRef textBuffer;
	static ostringstream textBufferConvert;

	DataField(ControlID ctr){
	
		ctrl=ctr;
		
	}//end constructor
	
	pascal CFStringRef getCFStringData(WindowRef window){
	
		ControlHandle dataField;
		
		GetControlByID(window,&ctrl,&dataField);
		
		return CFSTR("void");
		
	}//end getCFStringData
	
};//end class DataField

Code:

//
//  main.c
//  carbonGraphicIOTest
//
//  Created by erik on 3/25/05.
//  Copyright __MyCompanyName__ 2005. All rights reserved.
//

#include <Carbon/Carbon.h>
#include <iostream>
#include "carbonGraphicIO.h"

using namespace std;

pascal OSStatus CGIOMainWindowEventHandler(EventHandlerCallRef handlerRef,EventRef event,void *userData);
pascal void TestCommand(WindowRef window);

int main(int argc, char* argv[])
{
    IBNibRef 		nibRef;
    WindowRef 		window;
	
	EventTypeSpec mainSpec={kEventClassCommand,kEventCommandProcess};
	
	DataField inputTest((ControlID){129,'CGIO'});
	DataField outputTest((ControlID){130,'CGIO'});
    
    OSStatus		err;

    // Create a Nib reference passing the name of the nib file (without the .nib extension)
    // CreateNibReference only searches into the application bundle.
    err = CreateNibReference(CFSTR("main"), &nibRef);
    require_noerr( err, CantGetNibRef );
    
    // Once the nib reference is created, set the menu bar. "MainMenu" is the name of the menu bar
    // object. This name is set in InterfaceBuilder when the nib is created.
    err = SetMenuBarFromNib(nibRef, CFSTR("MenuBar"));
    require_noerr( err, CantSetMenuBar );
    
    // Then create a window. "MainWindow" is the name of the window object. This name is set in 
    // InterfaceBuilder when the nib is created.
    err = CreateWindowFromNib(nibRef, CFSTR("MainWindow"), &window);
    require_noerr( err, CantCreateWindow );

    // We don't need the nib reference anymore.
    DisposeNibReference(nibRef);
    
	InstallWindowEventHandler(window,NewEventHandlerUPP(CGIOMainWindowEventHandler),1,&mainSpec,(void *)window,NULL);
	
    // The window was created hidden so show it.
    ShowWindow( window );
    
    // Call the event loop
    RunApplicationEventLoop();

	CantCreateWindow:
		CantSetMenuBar:
			CantGetNibRef:
				return err;
}

pascal OSStatus CGIOMainWindowEventHandler(EventHandlerCallRef handlerRef,EventRef event,void *userData){

	OSStatus err=eventNotHandledErr;
	HICommand command;
	
	GetEventParameter(event,kEventParamDirectObject,typeHICommand,NULL,sizeof(HICommand),NULL,&command);
	
	switch(command.commandID){
	
		case 'tEst':
		
			TestCommand((WindowRef)userData);
			
			err=noErr;
			
			break;
			
		//end case
		
	}//end switch
	
	return err;
	
}//end CGIOMainWindowEventHAndler

pascal void TestCommand(WindowRef window){

	//cout<<"test\n";
	
}//end TestCommand

Any ideas?

c'mon now...someone has to know carbon