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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
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<title>ExampleVideoPanel - /README.txt</title>
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<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/QuickTime/index.html">QuickTime</a> > <a href="../../samplecode/QuickTime/idxMovieCreation-date.html">Movie Creation</a> > <A HREF="javascript:location.replace('index.html');">ExampleVideoPanel</A> >
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<td><h1><div id="pagehead">ExampleVideoPanel</div></h1></td>
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<h2>/README.txt</h2>
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<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/ComponentIncludes/Components.k.h</option>
<option value="listing2.html">/Includes/DebugFlags.h</option>
<option value="listing3.html">/Includes/ExampleVideoPanel.h</option>
<option value="listing4.html">/Includes/ExampleVideoPanelDispatch.h</option>
<option value="listing5.html">/Includes/ExampleVideoPanelPrivate.h</option>
<option value="listing6.html">/Includes/ExampleVideoPanelVersion.h</option>
<option value="listing7.html">/PrefixIncludes/ExamplePanelCarbonConfig.h</option>
<option value="listing8.html">/PrefixIncludes/ExamplePanelClassicConfig.h</option>
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<p><strong><a href="ExampleVideoPanel.zip">Download Sample</a></strong> (“ExampleVideoPanel.zip”, 54.4K)<BR>
<strong><a href="ExampleVideoPanel.dmg">Download Sample</a></strong> (“ExampleVideoPanel.dmg”, 99.2K)</p>
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<pre class="sourcecodebox">ExampleVideoPanel Sample CodeVersion 1.03/15/02DESCRIPTIONThis is an
example of a simple sequence grabber video panel component.Sequence grabber
panel components augment the capabilities of sequence grabber components and
sequence grabber channel components by allowing sequence grabbers to obtain
configuration information from the user for a particular digitizing source that
is managed by a channel component. Sequence grabbers present a settings dialog
box to the user whenever an application calls the SGSettingsDialog function.
Applications never call sequence grabber panel components directly; application
developers use panel components only by calling the sequence grabber component.
Although the sequence grabber creates the dialog box and manages its
interactions with the user, portions of the dialog box are controlled by panel
components and channel components.The sequence grabber creates the dialog box
itself and manages the OK and Cancel buttons and the panel pop-up menu. Channel
components are responsible for the monitor area on the right side of the dialog
box. Panel components manage the settings area immediately below the panel
pop-up menu. Only one panel component is active at any given time; the user
selects a panel component by manipulating the panel pop-up menu.When the user
selects a specific panel component, the sequence grabber works with that
component to build the panel settings dialog area and present it to the user.
The panel component processes dialog events and mouse clicks as appropriate and
validates the user's settings. The sequence grabber then retrieves the settings
from the panel component and stores those settings. There are two
circumstances under which you should consider creating a sequence grabber panel
component: first, if you want to support special digitizing equipment in the
QuickTime environment; and, second, if you have created your own sequence
grabber channel component.PROGRAM SPECIFICSThis sample lets the user
specify the black level value for the underlying vdig component via the
VDSetBlackLevelValue function. The panel displays two buttons: Reset and "Do
It". Pressing the "Do It" button will set the black level to the maximum value
(0) . Pressing the Reset button will restore the black level to its original
value. Note that some vdigs do not support the VDSetBlackLevelValue function,
in which case the "Do It" button is deactivated.USING THE SAMPLEAfter
placing the built component file in the appropriate folder, you can activate
the component by calling the SGSettingsDialog function. The HackTV sample code
from the QuickTime SDK will do this for you when you select the "Video
Settings" menu item from the Monitor menu.BUILD REQUIREMENTSCodeWarrior 6,
IDE 4.1Microsoft Visual C++ 6RUNTIME REQUIREMENTSQuickTime 4 for Macintosh
OS 9QuickTime 4 Macintosh OS XQuickTime 4 for Windows 98, ME, 2000,
XPBUILDING THE SAMPLEMacintoshThe sample builds two targets for
Macintosh: ExampleVideoPanel PPC - standalone PPC sequence grabber panel
component for Traditional Mac OS. Place the target in your System
Folder:Extensions folder.ExampleVideoPanel Carbon - standalone Carbon
sequence grabber panel component for Mac OS X. Place the target in your
/Library/QuickTime/ folder.WindowsThe sample builds two target for
Windows:ExampleVideoPanel Release - release build, standalone sequence
grabber panel component for Windows 98, ME, 2000 or XP. Place the target in
your \Windows\System(32)\QuickTime folder.ExampleVideoPanel Debug - debug
build, standalone sequence grabber panel component for Windows 98, ME, 2000 or
XP. Place the target in your \Windows\System(32)\QuickTime
folder.FEEDBACKSend feedback to:
<http://developer.apple.com/contact/feedback.html></pre>
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<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/ExampleVideoPanel/listing15.html%3Fid%3DDTS10000800-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
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