C / C++ / MFC

int int_mode = 0;
CString str_buffer;

if(int_mode == 1) //this is the line that, once executed, crasehes the app

int format_chars(int int_offset, CString input)
{
	int i = 0;
	int a = 1;
	int output = 0;
	int int_mode = 0;
	CString str_buffer;

	while(true)
	{



		if(int_mode == 1) //crashes after this line
		{
			if(input.GetAt(i) == ' ')
			{
				output = atoi(str_buffer);
				return output;
			}
			str_buffer += input.GetAt(i);
		}

		if(input.GetAt(i) == ' ')
		{
			a++;

			if(a == int_offset)
			{
				int_mode = 1;
			}
		}
			



		i++;

		if(i > input.GetLength())
			return -1;
	}
	 

	return -1;
}

Switch (<<Some Message>>)
Case <<some keyword>>:

//Point setting for single monitor
break;
<br>
Case <<other keyword>>:
<br>
//Point setting for multi monitor
break;