#define WIN32_LEAN_AND_MEAN
#include <malloc.h>
#include <stdlib.h>
#include <windows.h>
#include <stdio.h>


#define IDB_REMOVE 1000
#define IDB_ADD 1001
#define IDE_ITEMTEXT 2000
#define IDL_LISTBOX 3000


char szClassName[] = "Windows App w/controls";
char text[] = "rbh";
       
HINSTANCE hApplicationInstance = NULL;
HWND hListbox = NULL; 
HWND hMainWindow = NULL;
HWND hRemove = NULL;
HWND hEdit = NULL;
HWND hAdd = NULL;









LRESULT AddItem(HWND hwnd, LPSTR lpstr); 
LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPreviousInstance, LPSTR lpCommandLine, int nShowCommand)  {
  MSG messages;
  WNDCLASSEX wcex;

  hApplicationInstance = hInstance;

  wcex.cbClsExtra = 0;
  wcex.cbSize = sizeof(WNDCLASSEX);
  wcex.cbWndExtra = 0;
  wcex.hbrBackground = (HBRUSH)(COLOR_3DFACE+2);
  wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
  wcex.hIcon = LoadIcon(NULL, IDI_APPLICATION);
  wcex.hIconSm = LoadIcon(NULL, IDI_APPLICATION);
  wcex.hInstance = hInstance;
  wcex.lpfnWndProc = WindowProcedure;
  wcex.lpszClassName = szClassName;
  wcex.lpszMenuName = NULL;
  wcex.style = CS_HREDRAW | CS_VREDRAW;

  if (!RegisterClassEx(&wcex))
    return 0;

  hMainWindow = CreateWindowEx(0, szClassName, "Win32 Controls", WS_OVERLAPPEDWINDOW, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, CW_USEDEFAULT, HWND_DESKTOP, NULL, hInstance, NULL);

  ShowWindow(hMainWindow, nShowCommand);
  while(GetMessage(&messages, NULL, 0, 0))  {
    if (!IsDialogMessage(hMainWindow, &messages))  { // <-- Added
      TranslateMessage(&messages);
      DispatchMessage(&messages);
    } // <-- Added
  }

  return (int)messages.wParam;
}


LRESULT CALLBACK WindowProcedure(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)  {
  HGDIOBJ hDefaultFont = NULL;
  HWND hwndList,hButton;
  char Buffer[126]="";
  
  switch(uMsg)  {
    case WM_DESTROY:
      PostQuitMessage(0);
      break;

    case WM_CREATE:  {  


      hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, 
                             "Edit",
                             "",
                             WS_CHILD | WS_VISIBLE | WS_TABSTOP | ES_AUTOHSCROLL, 
                             110, 35, 50, 20,
                             hwnd,
                             (HMENU)IDE_ITEMTEXT,
                             hApplicationInstance,
                             NULL);


	  hButton = CreateWindowEx(WS_EX_CLIENTEDGE, 
                             "BUTTON",
                             "Remove",
                             WS_CHILD | WS_VISIBLE , 
                             110, 280, 50, 20,
                             hwnd,
                             (HMENU)IDB_REMOVE,
                             hApplicationInstance,
                             NULL);

	  hButton = CreateWindowEx(WS_EX_CLIENTEDGE, 
                             "BUTTON",
                             "Add",
                             WS_CHILD | WS_VISIBLE , 
                             110, 300, 50, 20,
                             hwnd,
                             (HMENU)IDB_ADD,
                             hApplicationInstance,
                             NULL);

      

	  hwndList = CreateWindow (TEXT ("listbox"), NULL,
				WS_CHILD | WS_VISIBLE | LBS_STANDARD|LBS_SORT,
				120, 140,
				240,
				145,
				hwnd, (HMENU) IDL_LISTBOX,
				(HINSTANCE) GetWindowLong (hwnd, GWL_HINSTANCE),
				NULL) ;	
	  

	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"First");
	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"Sec");
	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"Third");
	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"Four");
	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"Five");
	  SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)"Six");

	  


			
    }



    case WM_COMMAND:  {
      
      
      switch(LOWORD(wParam)){
        
			case IDB_REMOVE:  { 
			if (HIWORD(wParam) == BN_CLICKED)  { 
			MessageBox(hwnd,"IDB_REMOVE Clicked","",MB_OK);
            int iCurSel = (int)SendMessage(hwndList, LB_GETCURSEL, 0, 0); 
			sprintf(Buffer,"The cur sel val is %d",iCurSel);
            MessageBox(hwnd,Buffer,"",MB_OK);
            if (iCurSel == -1) {
			MessageBox(hwnd,"nothing selected","",MB_OK);
			}break; 
			MessageBox(hwnd,"selection success","",MB_OK);
            SendMessage(hwndList, LB_DELETESTRING, (WPARAM)iCurSel, 0);
			}
			}break;
        
				case IDL_LISTBOX:  { 
				if (HIWORD(wParam) == LBN_SELCHANGE)  { 
				char *Item; 
				int iCurSel = (int)SendMessage(hwndList, LB_GETCURSEL, 0, 0); 
				int nItemLen = (int)SendMessage(hwndList, LB_GETTEXTLEN, iCurSel, 0);            
				if (nItemLen > 0)  { 
				Item = (char*)malloc(nItemLen); 			
				SendMessage(hwndList, LB_GETTEXT, iCurSel, (LPARAM)Item); 
				SetWindowText(hwnd, Item); 
				}				
				}

				}break;
        
					case IDB_ADD:  { 
					if (HIWORD(wParam) == BN_CLICKED)  {
							MessageBox(hwnd,"IDB_ADD selected","",MB_OK);				
							//char *NewItem;
							//int nTextLen = (int)SendMessage(hEdit, WM_GETTEXTLENGTH, 0, 0); 				
							//if (nTextLen > 0)  {
							//NewItem = (char*)malloc(nTextLen); 
							//SendMessage(hEdit, WM_GETTEXT, (nTextLen + 1), (LPARAM)NewItem);
							//MessageBox(hwnd,NewItem,"item",MB_OK);						
							//AddItem(hwndList, NewItem); 
							//}

					}
					}break;
      }
    }
    
    /*if (LOWORD(wParam) == 1 &&
    HIWORD(wParam) == BN_CLICKED &&
    (HWND) lParam == hwndButton)ss
    }*/

    default: return DefWindowProc(hwnd, uMsg, wParam, lParam);
  }
  
  return 0;
}

/*
  This is a quick and easy function to add items to a listbox for you
*/
//LRESULT AddItem(HWND hwndList, LPSTR lpstr)  { 
//	MessageBox(NULL,lpstr,"item @ AddItem routine",MB_OK);
//    return SendMessage(hwndList, LB_ADDSTRING, 0, (LPARAM)lpstr); 
//}