Here is a list of (major) changes in Qt from 0.95 to 0.96.+
−
+
−
Bug-fixes, optimizations and improved documentation, of course.+
−
QClipboard is new.+
−
+
−
There are some changes in the API (Qt header files).  Some functions have+
−
been renamed or the arguments have changed. The old versions of these+
−
functions have been obsoleted. A call to an obsoleted function will by+
−
default generate a runtime warning the first time it is called, but it+
−
will be executed correctly. If you really need to ship code fast, you can+
−
turn off the runtime obsolescence warnings by calling+
−
qSuppressObsoleteWarnings().+
−
+
−
Obsoleted functions will disappear in a future release.  To get+
−
compile-time errors for each use of an obsoleted function, compile your+
−
code with -DTEST_OBSOLETE. You should recompile without this option when+
−
you have upgraded your code (otherwise, you may get linking errors). +
−
Note: it is probably not a good idea to compile the Qt library with+
−
-DTEST_OBSOLETE, it may cause problems if you try to link or run+
−
programs that use obsoleted functions.+
−
+
−
For new users: obsoleted functions are no longer documented, in fact they+
−
are not even visible in the documentation.+
−
+
−
*************** Changes that might affect runtime behavior *****************+
−
+
−
QFileInfo:+
−
----------+
−
  size() returns uint(previousy int), 0 if the size cannot be fetched (was -1).+
−
	Use isFile() to check.+
−
+
−
+
−
QPopupMenu+
−
------------+
−
  When a popup menu is a submenu (directly or as a subsub...menu) of a+
−
  menu bar(QMenuBar), the menu bar will now always emit the activated() or+
−
  highlighted() signal when a submenu emits these signals. This fix might+
−
  have undesired effects if you previously have worked around it by+
−
  connecting to signals both in menu bar and its submenus.+
−
+
−
*************** Changes that might generate compile errors *****************+
−
**************           when compiling old code           *****************+
−
+
−
QDataStream:+
−
-----------+
−
  Serialization of int and uint is no longer supported. Use INT32 and+
−
  UINT32 instead. This had to be changed in order to run Qt on 64-bit+
−
  architectures.+
−
+
−
+
−
QImage:+
−
-------+
−
  24-bpp pixel format no longer supported, use 32-bpp instead.+
−
+
−
  This means that you have to use uint* instead of uchar* when accessing+
−
  pixel values. You cannot use the uchar* pointer directly, because the+
−
  pixel format depends on the byte order on the underlying platform. Use+
−
  qRgb() and friends (qcolor.h) to access the pixels.+
−
+
−
+
−
QWidget:+
−
--------+
−
  setMouseTracking() does not return bool. Call hasMouseTracking() to+
−
  determine the mouse tracking state. (This only affects code that+
−
  actually uses the return value.)+
−
+
−
  (There are other changes in QWidget, see below)+
−
+
−
+
−
*************** Type changes that might generate warnings: *****************+
−
+
−
+
−
QCache/QIntCache:+
−
-----------------+
−
  Using int/uint instead of long/ulong.+
−
+
−
+
−
QDate/QTime/QDateTime:+
−
----------------------+
−
  Using int/uint instead of long/ulong (MS-DOS required long).+
−
+
−
+
−
QIODevice/QBuffer/QFile:+
−
------------------------+
−
  Using int/uint instead of long/ulong.+
−
+
−
+
−
QKeyEvent:+
−
----------+
−
  ascii() now returns int (previously uchar).+
−
+
−
+
−
QTableView:+
−
------------+
−
  uint used instead of ulong (tableFlags() etc.)+
−
+
−
+
−
QTextStream:+
−
------------+
−
  int used instead of long (flags() etc.)+
−
+
−
+
−
*****************         Obsoleted functions         **********************+
−
+
−
QAccel:+
−
-------+
−
  enable(), disable() and isDisabled() are obsolete.+
−
  Use setEnabled(TRUE/FALSE) and !isEnabled() instead.+
−
  isItemDisabled(), enableItem(), disableItem() are obsolete.+
−
  Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.+
−
+
−
+
−
QApplication:+
−
-------------+
−
  cursor(), setCursor() and restoreCursor() obsoleted.+
−
  Use overrideCursor(), setOverrideCursor() and restoreOverrideCursor()+
−
  instead.+
−
+
−
+
−
QBitmap:+
−
--------+
−
  Constructor takes "const uchar *bits" instead of "const char *"+
−
  because of sign problems (uchar = unsigned char). Old constructors are+
−
  obsolete.+
−
+
−
+
−
QButton:+
−
--------+
−
  toggleButton() is obsolete, renamed to isToggleButton().+
−
+
−
+
−
QColor:+
−
-------+
−
  The functions QRED, QGREEN, QBLUE, QRGB, QGRAY obsolete.+
−
  Instead, use  qRed, qGreen, qBlue, qRgb, qGray.+
−
+
−
+
−
QComboBox:+
−
----------+
−
  setStrList() obsolete, use clear() + insertStrList() instead.+
−
  string() obsolete, use text() instead.+
−
+
−
+
−
QLCDNumber:+
−
----------+
−
  longValue() is obsolete, use intValue() instead.+
−
+
−
+
−
QListbox:+
−
---------+
−
  The macro LBI_String is obsolete, use LBI_text instead.+
−
  string() obsolete, use text() instead.+
−
  stringCopy() and setStringCopy() are obsolete.+
−
+
−
+
−
QMenuData:+
−
----------+
−
  string() obsolete, use text() instead.+
−
  isItemDisabled(), enableItem(), disableItem() are obsolete.+
−
  Use !isItemEnabled(), setItemEnabled(TRUE/FALSE) instead.+
−
  checkItem() and uncheckItem() are obsolete.+
−
  Use setItemChecked(TRUE/FALSE) instead.+
−
+
−
+
−
QPainter: +
−
--------- +
−
+
−
  drawBezier() is obsolete, general Bezier curves are rarely used and+
−
  cost too much. Qt will only support drawQuadBezier() (four-point+
−
  Bezier) in the future.+
−
+
−
QPointArray:+
−
-----------+
−
  move() is obsolete, use translate() instead.+
−
  bezier() is obsolete, general Bezier curves are rarely used and+
−
  cost too much. Qt will only support quadBezier() (four-point+
−
  Bezier) in the future.+
−
+
−
+
−
+
−
QRect:+
−
------+
−
  move() is obsolete, use moveBy() instead.+
−
  setTopLeft(), setTopRight(), setBottomLeft(), setBottomRight() and+
−
  setCenter() is obsolete, use moveTopLeft(), moveTopRight(),+
−
  moveBottomLeft(), moveBottomRight() and moveCenter() instead.+
−
+
−
+
−
QRegion:+
−
-------+
−
  move() is obsolete, use translate() instead.+
−
+
−
+
−
QSocketNotifier:+
−
----------------+
−
  enabled() is obsolete. Use isEnabled() instead.+
−
+
−
+
−
QWidget:+
−
--------+
−
  enable(), disable() and isDisabled() are obsolete.+
−
  Use setEnabled(TRUE/FALSE) and !isEnabled() instead.+
−
+
−
  setMinimumSize(), setMaximumSize(), minimumSize(), maximumSize() are obsolete+
−
  use setMinSize(), setMaxSize(), minSize(), maxSize() instead.+
−
+
−
  enableUpdates() obsolete, use isUpdatesEnabled()/setUpdatesEnabled().+
−
+
−
  id() is obsolete, it has been renamed to winId().+
−
+
−
***************** All other changes from 0.95 to 0.96 **********************+
−
+
−
moc+
−
----------+
−
    Gives a warning if no output is generated.+
−
+
−
+
−
qglobal.h:+
−
----------+
−
  INT32 and UINT32 typedefs changed to work with DEC Alpha.+
−
+
−
+
−
QApplication:+
−
-------------+
−
  clipboard() is new.+
−
+
−
+
−
QButtonGroup:+
−
-------------+
−
  Exclusive group setting added (isExclusive and setExclusive).+
−
  find() is new.+
−
+
−
+
−
QColor:+
−
-------+
−
  New type QRgb (uint), used for RGB triplet.+
−
+
−
+
−
QLineEdit:+
−
----------+
−
  You can now mark text, and copy and paste to/from the clipboard.+
−
+
−
+
−
QPaintDevice:+
−
---------+
−
  The bitblt function now takes an ignoreMask parameter. It has a default+
−
  value, so no old code will be broken.+
−
+
−
QPrinter:+
−
------------+
−
  fixed minor bugs in handling of polygons and beziers.+
−
+
−
+
−
QWidget:+
−
--------+
−
  New protected virtual functions styleChange(), backgroundColorChange(),+
−
  backgroundPixmapChange(), paletteChange() and fontChange().+
−
  These functions are called from setStyle(), setBackgroundColor() etc.+
−
  You can reimplement them to if you need to know when widget properties+
−
  changed and to optimize updates.+
−
+
−
  The destroyed() signal has been moved to QObject.+
−
+
−