Eingabezeile mit Return

[Martin66]

Hallo,

ich brauche eine Eingabezeile mit Return (war schon oft, ich weiß). Problem ist, dass mein Compiler (Borland C++ Builder 2005) in der Unterklasse die Variable m_EditProc nicht mag, Fehler im Datentyp. Kann jemand mal nach Sinn und Unsinn durchschauen, ich bin völlig neu in Windows-Programmierung.

(Ohne Unterklasse und ohne Return funktioniert das Programm.)

Grüße,
Martin

// -----------------------------------------------------------------------------

#include	<SysUtils.hpp>
#include	<windows.h>

// -----------------------------------------------------------------------------

#define		ID_EDIT		1

// -----------------------------------------------------------------------------

TCHAR		szAppName[] = TEXT ("MTR--MTR") ;

WNDPROC		m_EditProc;

// -----------------------------------------------------------------------------

LRESULT CALLBACK	WndProc			(HWND, UINT, WPARAM, LPARAM);
LRESULT CALLBACK	EditProc		(HWND, UINT, WPARAM, LPARAM);

// -----------------------------------------------------------------------------
//		START
// -----------------------------------------------------------------------------

int WINAPI WinMain (HINSTANCE hInstance,
		    HINSTANCE hPrevInstance,
		    PSTR      szCmdLine,
		    int       iCmdShow)

{
  HWND		hwnd;
  MSG		msg;
  WNDCLASS	wndclass;

  // WNDCLASSEX *wndclassex;
  // wndclassex = (WNDCLASSEX*) malloc (sizeof (WNDCLASSEX));

//  wndclassex.cbSize        = sizeof (WNDCLASSEX);
  wndclass.style         = CS_HREDRAW | CS_VREDRAW;
  wndclass.lpfnWndProc   = WndProc;
  wndclass.cbClsExtra    = 0;
  wndclass.cbWndExtra    = 0;
  wndclass.hInstance     = hInstance;
  wndclass.hIcon         = LoadIcon (NULL, IDI_APPLICATION);
  wndclass.hCursor       = LoadCursor (NULL, IDC_ARROW);
  wndclass.hbrBackground = (HBRUSH) GetStockObject (WHITE_BRUSH);
  wndclass.lpszMenuName  = NULL;
  wndclass.lpszClassName = szAppName;
//  wndclassex.hIconSm       = LoadIcon (NULL, IDI_HAND);

  if (! RegisterClass (&wndclass))
     {
       MessageBox (NULL, TEXT ("Programm arbeitet mit Unicode und setzt Windows NT voraus!"),
		   szAppName, MB_ICONERROR);
       return     (0);
     }

  hwnd = CreateWindow (szAppName,		// Name Fensterklasse
		       TEXT ("MTR"),		// Titel
		       WS_OVERLAPPEDWINDOW,	// Stil
		       100,			// x-Pos
		       300,			// y-Pos
		       600,			// Breite
		       400,			// Höhe
		       NULL,			// übergeordnetes Fenster
		       NULL,			// Menü
		       hInstance,		// Programm-Kopiezähler (Programm-ID)
		       NULL);			// zusätzliche Parameter

    ShowWindow (hwnd, iCmdShow);
  UpdateWindow (hwnd);

  while (GetMessage (&msg, NULL, 0, 0))
	{
	  TranslateMessage (&msg);
	   DispatchMessage (&msg);
	}

  return (msg.wParam);
}

// -----------------------------------------------------------------------------

LRESULT CALLBACK WndProc (HWND   hwnd,
			  UINT   message,
			  WPARAM wParam,
			  LPARAM lParam)

{
  static HWND	hwndEdit;

  switch (message)
     {
     case WM_CREATE:

	  hwndEdit = CreateWindow (TEXT ("edit"), NULL,
			 WS_CHILD | WS_VISIBLE | ES_AUTOHSCROLL | WS_BORDER,
			 100, 200, 300, 20, hwnd, (HMENU) ID_EDIT,
			 ((LPCREATESTRUCT) lParam)->hInstance, NULL);

	  m_EditProc = (WNDPROC) SetWindowLongPtr (hwndEdit, GWLP_WNDPROC, (LONG_PTR) EditProc);

	  return (0);

     case WM_SETFOCUS:
	  SetFocus (hwndEdit);
	  return (0);

     case WM_SIZE:
	  MoveWindow (hwndEdit, 100, 200, 300, 20, TRUE);
	  return (0);

     case WM_COMMAND:
	  if (LOWORD (wParam) == ID_EDIT)
	       if (HIWORD (wParam) == EN_ERRSPACE ||
		   HIWORD (wParam) == EN_MAXTEXT)
		  MessageBox (hwnd, TEXT ("Edit control out of space."),
			      szAppName, MB_OK | MB_ICONSTOP);
	  return (0);

     case WM_DESTROY:
	  PostQuitMessage (0);
	  return (0);
     }

  return (DefWindowProc (hwnd, message, wParam, lParam));
}

// -----------------------------------------------------------------------------

#if	1

LRESULT CALLBACK EditProc (HWND   hwnd,
                           UINT   msg, 
                           WPARAM wParam, 
                           LPARAM lParam)

{
   LRESULT	rc;

    switch(msg)
    {
	case WM_KEYDOWN:
		    //Mach Was
	break;
    }

  rc = CallWindowProc (m_EditProc, hwnd, msg, wParam, lParam);

  return (rc);
}

#endif

// -----------------------------------------------------------------------------
//		Dateiende:	mtr.cpp
// -----------------------------------------------------------------------------