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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit -  The Feature Definition File</title><style type="text/css"><!--
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<p>
<table width="100%">
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<a href="classes.html"><b>Classes</b></a>
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<h1 align=center> The Feature Definition File</h1><br clear="all">
The file
<tt>src/tools/qfeatures.h</tt>
includes the file
<tt>src/tools/qconfig.h</tt>. By modifying <tt>qconfig.h</tt>, you
can define a subset of the full Qt functionality that you wish to
have available on your installation.
<p>
Note that such modification is only supported on Qt/Embedded
platforms, where reducing the size of Qt is
important and the application-set is often fixed.
<p>
The <tt>config.h</tt> definition file simply defines macros to disable
features.  Some features are dependent on other features and these
dependencies are expressed in <tt>qfeatures.h</tt>.
<p>
The available options are:
<p>
<table>
<tr><th><big>Macro</big><th><big>Disables</big><th><big>Set automatically by</big>
<tr><th colspan=3>Images - <a href="qimageio.html">QImageIO</a>
<tr><td valign=top>QT_NO_IMAGEIO_BMP <td valign=top>
    The Microsoft Bitmap image file format.
<tr><td valign=top>QT_NO_IMAGEIO_PPM <td valign=top>
    The Portable Pixmap image file format.
<tr><td valign=top>QT_NO_IMAGEIO_XBM <td valign=top>
    The X11 Bitmap image file format.
<tr><td valign=top>QT_NO_IMAGEIO_XPM <td valign=top>
    The X11 Pixmap image file format.
<tr><td valign=top>QT_NO_IMAGEIO_PNG <td valign=top>
    The Portable Network Graphics image file format.
<p>
<tr><th colspan=3>Animation
<tr><td valign=top>QT_NO_ASYNC_IO <td valign=top>
    Asynchronous I/O - <a href="qasyncio.html">QAsyncIO</a>
<tr><td valign=top>QT_NO_ASYNC_IMAGE_IO <td valign=top>
    Asynchronous Image I/O and GIF image support - <a href="qimagedecoder.html">QImageDecoder</a>, etc.
<tr><td valign=top>QT_NO_MOVIE <td valign=top>
    Animation support - <a href="qmovie.html">QMovie</a>
    <td valign=top>QT_NO_ASYNC_IO, QT_NO_ASYNC_IMAGE_IO
<p>
<tr><th colspan=3>Fonts
<tr><td valign=top>QT_NO_TRUETYPE <td valign=top>
    TrueType (TTF and TTC) font file format, only used by Qt/Embedded.
<tr><td valign=top>QT_NO_BDF <td valign=top>
    Bitmap Distribution Format (BDF) font file format, only used by Qt/Embedded.
<tr><td valign=top>QT_NO_FONTDATABASE <td valign=top>
    Font database.
<p>
<tr><th colspan=3>Internationalization
<p>
<tr><td valign=top>QT_NO_I18N <td valign=top>
    Conversions between Unicode and 8-bit encodings.
<tr><td valign=top>QT_NO_UNICODETABLES <td valign=top>
    Large tables defining such things as upper and lowercase conversions
    for all Unicode characters.
<p>
<tr><th colspan=3>MIME
<tr><td valign=top>QT_NO_MIME <td valign=top>
    Multipurpose Internet Mail Extensions, an internet standard for encoding
    and tagging typed data (eg. text, images, colors) - <a href="qmimesource.html">QMimeSource</a>
<tr><td valign=top>QT_NO_RICHTEXT <td valign=top>
    HTML-like text - <a href="qstylesheet.html">QStyleSheet</a>, <a href="qlabel.html">QLabel</a>
    <td valign=top>QT_NO_MIME
<tr><td valign=top>QT_NO_DRAGANDDROP <td valign=top>
    Drag-and-drop data between applications - <a href="qdragobject.html">QDragObject</a>
    <td valign=top>QT_NO_MIME
<tr><td valign=top>QT_NO_CLIPBOARD <td valign=top>
    Cut-and-paste data between applications - <a href="qclipboard.html">QClipboard</a>
    <td valign=top>QT_NO_MIME
<p>
<tr><th colspan=3>Sound
<tr><td valign=top>QT_NO_SOUND <td valign=top>
    Playing audio files - <a href="qsound.html">QSound</a>
<p>
<tr><th colspan=3>Scipting
<tr><td valign=top>QT_NO_PROPERTIES <td valign=top>
    Scripting of Qt-based applications.
<p>
<tr><th colspan=3>Qt/Embedded-specific
<p>
<tr><td valign=top>QT_NO_QWS_CURSOR <td valign=top>
    The cursor sprite on Qt/Embedded. Pen-operated devices would not
    normally need this feature.
<p>
<tr><td valign=top>QT_NO_QWS_DEPTH_8GRAYSCALE <td valign=top>
    8-bit-per-pixel - 256 levels of gray.
    Incompatible with QWS_DEPTH_8
<p>
<tr><td valign=top>QT_NO_QWS_DEPTH_8 <td valign=top>
    8-bit-per-pixel - 216-color color-cube with 40 auxiliary colors.
    Incompatible with QWS_DEPTH_8GRAYSCALE.
<p>
<tr><td valign=top>QT_NO_QWS_DEPTH_15 <td valign=top>
    15-bit-per-pixel - 32 levels each of Red, Blue, and Green.
<p>
<tr><td valign=top>QT_NO_QWS_DEPTH_16 <td valign=top>
    16-bit-per-pixel - 32 levels each of Red and Blue, 64 of Green.
<p>
<tr><td valign=top>QT_NO_QWS_DEPTH_32 <td valign=top>
    32-bit-per-pixel - 256 levels for each of Red, Green, and Blue.
<p>
<tr><td valign=top>QT_NO_QWS_MACH64 <td valign=top>
    Mach64 accelerated driver (demonstration only)
<p>
<tr><td valign=top>QT_NO_QWS_VFB <td valign=top>
    Virtual framebuffer running on X11 (see reference documentation).
<p>
<tr><th colspan=3>Networking
<tr><td valign=top>QT_NO_NETWORKPROTOCOL <td valign=top>
    Abstract multi-protocol data retrieval,
    with local file retrieval included - <a href="qnetworkprotocol.html">QNetworkProtocol</a>
<p>
<tr><td valign=top>QT_NO_NETWORKPROTOCOL_FTP <td valign=top>
    FTP-protocol data retrieval.
    <td valign=top>QT_NO_NETWORKPROTOCOL
<p>
<tr><td valign=top>QT_NO_NETWORKPROTOCOL_HTTP <td valign=top>
    <td valign=top>QT_NO_NETWORKPROTOCOL
    HTTP-protocol data retrieval.
<p>
<tr><th colspan=3>Painting/drawing
<tr><td valign=top>QT_NO_COLORNAMES <td valign=top>
    Color names such as "red", used by some <a href="qcolor.html">QColor</a> constructors
    and by some HTML documents - <a href="qcolor.html">QColor</a>, <a href="qstylesheet.html">QStyleSheet</a>
<p>
<tr><td valign=top>QT_NO_TRANSFORMATIONS <td valign=top>   // uses floating point
    Used by a number of classes in Qt. With this, rotation and scaling
    are possible. Without it, only co-ordinate translation - <a href="qwmatrix.html">QWMatrix</a>
<p>
<tr><td valign=top>QT_NO_PSPRINTER <td valign=top>
    Postscript printer support.
<p>
<tr><td valign=top>QT_NO_PRINTER <td valign=top>
    Printer support - <a href="qprinter.html">QPrinter</a>
    <td valign=top>QT_NO_PSPRINTER on Unix
<p>
<tr><td valign=top>QT_NO_PICTURE <td valign=top>
    Save Qt drawing commands to a files - <a href="qpicture.html">QPicture</a>
<p>
<tr><th colspan=3>Widgets
<tr><td valign=top>QT_NO_WIDGETS <td valign=top>
    Disabling this disables all widgets except <a href="qwidget.html">QWidget</a>.
<p>
<tr><td valign=top>QT_NO_TEXTVIEW <td valign=top>
    HTML document viewing - <a href="qtextview.html">QTextView</a>
    <td valign=top>QT_NO_WIDGETS, QT_NO_RICHTEXT
<p>
<tr><td valign=top>QT_NO_TEXTBROWSER <td valign=top>
    HTML document browsing - <a href="qtextbrowser.html">QTextBrowser</a>
    <td valign=top>QT_NO_TEXTVIEW
<p>
<tr><td valign=top>QT_NO_ICONVIEW <td valign=top>
    Labelled icons - <a href="qiconview.html">QIconView</a>
    <td valign=top>QT_NO_WIDGETS, QT_NO_DRAGANDDROP
<p>
<tr><td valign=top>QT_NO_LISTVIEW <td valign=top>
    Lists of information - <a href="qlistview.html">QListView</a>
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><td valign=top>QT_NO_CANVAS <td valign=top>
    Object canvas - <a href="qcanvas.html">QCanvas</a>
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><td valign=top>QT_NO_DIAL <td valign=top>
    Value control - <a href="qdial.html">QDial</a>
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><td valign=top>QT_NO_WORKSPACE <td valign=top>
    Multi-document interface - <a href="qworkspace.html">QWorkspace</a>
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><td valign=top>QT_NO_LCDNUMBER <td valign=top>
    LCD-like number display - <a href="qlcdnumber.html">QLCDNumber</a>
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><th colspan=3>GUI Styles
<tr><td valign=top>QT_NO_STYLE_WINDOWS <td valign=top>
    Microsoft Windows style - <a href="qwindowsstyle.html">QWindowsStyle</a>
    <td valign=top>QT_NO_WIDGETS
<tr><td valign=top>QT_NO_STYLE_MOTIF <td valign=top>
    OSF Motif style - <a href="qmotifstyle.html">QMotifStyle</a>
    <td valign=top>QT_NO_WIDGETS
<tr><td valign=top>QT_NO_STYLE_CDE <td valign=top>
    Open Group CDE style - <a href="qcdestyle.html">QCDEStyle</a>
    <td valign=top>QT_NO_STYLE_MOTIF
<tr><td valign=top>QT_NO_STYLE_PLATINUM <td valign=top>
    MacOS X style - <a href="qplatinumstyle.html">QPlatinumStyle</a>
    <td valign=top>QT_NO_WIDGETS
<tr><td valign=top>QT_NO_STYLE_SGI <td valign=top>
    SGI style - <a href="qsgistyle.html">QSGIStyle</a>
    <td valign=top>QT_NO_STYLE_MOTIF
<p>
<tr><th colspan=3>Dialogs
<tr><td valign=top>QT_NO_DIALOGS <td valign=top>
    Disabling this disables all common dialogs <a href="qwidget.html">QWidget</a>.
    <td valign=top>QT_NO_WIDGETS
<p>
<tr><td valign=top>QT_NO_FILEDIALOG <td valign=top>
    The file selection dialog - <a href="qfiledialog.html">QFileDialog</a>
    <td valign=top>QT_NO_DIALOGS, QT_NO_NETWORKPROTOCOL, QT_NO_LISTVIEW
<p>
<tr><td valign=top>QT_NO_FONTDIALOG <td valign=top>
    The font selection dialog - <a href="qfontdialog.html">QFontDialog</a>
    <td valign=top>QT_NO_DIALOGS, QT_NO_FONTDATABASE
<p>
<tr><td valign=top>QT_NO_COLORDIALOG <td valign=top>
    The color selection dialog - <a href="qcolordialog.html">QColorDialog</a>
    <td valign=top>QT_NO_DIALOGS
<p>
<tr><td valign=top>QT_NO_PRINTDIALOG <td valign=top>
    The print selection dialog - <a href="qprintdialog.html">QPrintDialog</a>
    <td valign=top>QT_NO_DIALOGS, QT_NO_LISTVIEW
<p>
<tr><td valign=top>QT_NO_INPUTDIALOG <td valign=top>
    Text input dialog - <a href="qinputdialog.html">QInputDialog</a>
    <td valign=top>QT_NO_DIALOGS
<p>
<tr><td valign=top>QT_NO_MESSAGEBOX <td valign=top>
    Message/prompting dialog - <a href="qmessagebox.html">QMessageBox</a>
    <td valign=top>QT_NO_DIALOGS
<p>
<tr><td valign=top>QT_NO_PROGRESSDIALOG <td valign=top>
    Long-computation progress dialog - <a href="qprogressdialog.html">QProgressDialog</a>
    <td valign=top>QT_NO_DIALOGS
<p>
<tr><td valign=top>QT_NO_TABDIALOG <td valign=top>
    Tabbed-pages dialog - <a href="qtabdialog.html">QTabDialog</a>
    <td valign=top>QT_NO_DIALOGS
<p>
<tr><td valign=top>QT_NO_WIZARD <td valign=top>
    Multi-step dialog - <a href="qwizard.html">QWizard</a>
    <td valign=top>QT_NO_DIALOGS
<p>
</table>

<p><address><hr><div align="center">
<table width="100%" cellspacing="0" border="0"><tr>
<td>Copyright  2001 Trolltech<td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a>
<td align="right"><div align="right">Qt version 2.3.2</div>
</table></div></address></body></html>