📄 usage methods media-related.html
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<h2>Methods, Media-related</h2>
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<td><font color="DarkBlue">procedure ImageScaleInc;</font><br>
<font color="DarkBlue">procedure ImageScaleDec;</font><br>
Increases or decreases current ImageScale value and sets MediaFit to False (when IsImage = True).<br>
The nearest value to the current ImageScale value is set.
The following row of predefined scale values is used:
7, 10, 20, 30... 100, 150... 1600.
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<td><font color="DarkBlue">function ImageEffect(AEffect: TATViewerImageEffect): Boolean;</font><br>
Applies an image effect (when IsImage = True).<br>
Possible effects:<br>
<ul>
<li><b>vieRotate90</b>: rotate image 90 grad clockwise </li>
<li><b>vieRotate270</b>: rotate image 90 grad anti-clockwise </li>
<li><b>vieGrayscale</b>: convert image to grayscale </li>
<li><b>vieNegative</b>: convert image to negative colors </li>
<li><b>vieFlipVertical</b>: flip image vertically </li>
<li><b>vieFlipHorizontal</b>: flip image horizontally </li>
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Result is True when effect was successfully applied.<br>
Note:<br>
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<li>After applying of effect, icons (ICO) and metafiles (WMF, EMF) become "rasterized"
and may loose transparency and quality.</li>
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<td><font color="DarkBlue">procedure MediaDoPlayPause;</font><br>
Starts or pauses media playback (when IsMedia = True).
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