对话方块 - windows编程基础

EARCH_REPLACE, iEnable) ;
break ;
}
return 0 ;

case WM_COMMAND:
// Messages from edit control

if (lParam && LOWORD (wParam) == EDITID)
{
switch (HIWORD (wParam))
{
case EN_UPDATE :
bNeedSave = TRUE ;
return 0 ;
case EN_ERRSPACE :
case EN_MAXTEXT :
MessageBox (hwnd, TEXT ("Edit control out of space."),
szAppName, MB_OK | MB_ICONSTOP) ;
return 0 ;
}
break ;
}

switch (LOWORD (wParam))
{
// Messages from File menu

case IDM_FILE_NEW:
if (bNeedSave && IDCANCEL == AskAboutSave (hwnd, szTitleName))
return 0 ;

SetWindowText (hwndEdit, TEXT ("\0")) ;
szFileName[0] = '\0' ;
szTitleName[0] = '\0' ;
DoCaption (hwnd, szTitleName) ;
bNeedSave = FALSE ;
return 0 ;

case IDM_FILE_OPEN:
if (bNeedSave && IDCANCEL == AskAboutSave (hwnd, szTitleName))
return 0 ;
if (PopFileOpenDlg (hwnd, szFileName, szTitleName))
{
if (!PopFileRead (hwndEdit, szFileName))
{
OkMessage (hwnd, TEXT ("Could not read file %s!"),
szTitleName) ;
szFileName[0] = '\0' ;
szTitleName[0] = '\0' ;
}
}

DoCaption (hwnd, szTitleName) ;
bNeedSave =

对话方块(六十一)