qtimage.doc

qt-x11-free-3.0.3.tar.gz minigui图形界面工具

/*! \page qtimage-nsplugin-example.html
  \ingroup nsplugin-examples

  \title Display Images in Qt-supported Formats

  This example displays images which are in any format
  supported by Qt.  Combining this with the Qt ImageIO
  Extension adds PNG image support to your browser.
  It demonstrates the use of the QNPInstance::streamAsFile()
  function.

  To build the example, you must first build the \link nsplugin.html
  Qt Netscape Plugin Extension \endlink library. Then type \c make in
  \c extensions/nsplugin/examples/qtimage/ and copy the resulting \c
  qtimage.so or \c npqtimage.dll to the Plugins directory of your web
  browser.

  <embed src=\"pnglogo.png\" width=256 height=192>

  This plugin displays a \link http://www.libpng.org/pub/png/
  PNG format \endlink image.

  New image format can be supported by adding new image I/O handlers
  to the Qt library (see QImage::defineIOHandler), thus providing the
  functionality in both applications and WWW plugins from the same
  code.

  This plugin supports transparency and scaling of the image, just
  like GIFs in most web browsers.

  <embed align=middle src="test.png" width=182 height=138>
  <embed align=middle src="test.png" width=137 height=104>
  <embed align=middle src="test.png" width=91 height=69>
  <embed align=middle src="test.png" width=46 height=35>

  Implementation:
 
  \include qtimage/qtimage.cpp
*/