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<h1 align=center>QPaintDeviceMetrics Class Reference</h1><br clear="all">
<p>
The QPaintDeviceMetrics class provides information about a paint device.
<a href="#details">More...</a>
<p>
<code>#include <<a href="qpaintdevicemetrics-h.html">qpaintdevicemetrics.h</a>></code>
<p><a href="qpaintdevicemetrics-members.html">List of all member functions.</a>
<h2>Public Members</h2>
<ul>
<li><div class="fn"><a href="#b01fbd"><b>QPaintDeviceMetrics</b></a>(constQPaintDevice*)</div>
<li><div class="fn">enum{PdmWidth=1, PdmHeight, PdmWidthMM, PdmHeightMM, PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY}</div>
<li><div class="fn">int<a href="#95eb7b"><b>width</b></a>()const</div>
<li><div class="fn">int<a href="#d4fedb"><b>height</b></a>()const</div>
<li><div class="fn">int<a href="#e58d3b"><b>widthMM</b></a>()const</div>
<li><div class="fn">int<a href="#eba588"><b>heightMM</b></a>()const</div>
<li><div class="fn">int<a href="#a15e9e"><b>logicalDpiX</b></a>()const</div>
<li><div class="fn">int<a href="#b13b26"><b>logicalDpiY</b></a>()const</div>
<li><div class="fn">int<a href="#6c2ea7"><b>numColors</b></a>()const</div>
<li><div class="fn">int<a href="#6b95a9"><b>depth</b></a>()const</div>
</ul>
<hr><h2><a name="details"></a>Detailed Description</h2>
The QPaintDeviceMetrics class provides information about a paint device.
<p>
Sometimes it is necessary to obtain information about the physical
characteristics of a paint device when drawing graphics. This class
provides just that. For example, to compute the aspect ratio of a
paint device:
<p><pre> <a href="qpaintdevicemetrics.html">QPaintDeviceMetrics</a> pdm( myWidget );
double aspect = (double)pdm.<a href="#e58d3b">widthMM</a>() / (double)pdm.<a href="#eba588">heightMM</a>();
</pre>
<p>QPaintDeviceMetrics contains methods to provide the width and height
of a device in both pixels and millimeters, the number of colors
the device supports, the number of bit planes, and finally the
resolution of the device.
<p>Note that it is not always possible for QPaintDeviceMetrics to
compute the values you ask for, particularly for external devices.
The ultimate example is asking for the resolution of a <a href="qprinter.html">QPrinter</a>
that is set to "print to file" - who knows what printer that file
will end up?.
<hr><h2>Member Function Documentation</h2>
<h3 class="fn"><a name="b01fbd"></a>QPaintDeviceMetrics::QPaintDeviceMetrics(const<a href="qpaintdevice.html">QPaintDevice</a>*pd)</h3>
<p>Constructs a metric for the paint device <em>pd.</em>
<h3 class="fn">int<a name="6b95a9"></a>QPaintDeviceMetrics::depth()const</h3>
<p>Returns the bit depth (number of bit planes) of the paint device.
<h3 class="fn">int<a name="d4fedb"></a>QPaintDeviceMetrics::height()const</h3>
<p>Returns the height of the paint device, in default coordinate system
units (e.g. pixels for <a href="qpixmap.html">QPixmap</a> and <a href="qwidget.html">QWidget</a>).
<h3 class="fn">int<a name="eba588"></a>QPaintDeviceMetrics::heightMM()const</h3>
<p>Returns the height of the paint device, measured in millimeters.
<h3 class="fn">int<a name="a15e9e"></a>QPaintDeviceMetrics::logicalDpiX()const</h3>
<p>Returns the horizontal resolution of the device, in dots per inch, that is
used when computing font sizes.
For X this is usually the same as could be computed
from <a href="#e58d3b">widthMM</a>(), but on Windows this varies.
<h3 class="fn">int<a name="b13b26"></a>QPaintDeviceMetrics::logicalDpiY()const</h3>
<p>Returns the vertical resolution of the device, in dots per inch, that is
used when computing font sizes.
For X this is usually the same as could be computed
from <a href="#eba588">heightMM</a>(), but on Windows this varies.
<h3 class="fn">int<a name="6c2ea7"></a>QPaintDeviceMetrics::numColors()const</h3>
<p>Returns the number of different colors available for the paint device.
<h3 class="fn">int<a name="95eb7b"></a>QPaintDeviceMetrics::width()const</h3>
<p>Returns the width of the paint device, in default coordinate system
units (e.g. pixels for <a href="qpixmap.html">QPixmap</a> and <a href="qwidget.html">QWidget</a>).
<h3 class="fn">int<a name="e58d3b"></a>QPaintDeviceMetrics::widthMM()const</h3>
<p>Returns the width of the paint device, measured in millimeters.
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