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ShellBrowser Delphi Components Documentation
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Jam.Shell.Thumbnail.TJamThumbnailExtractor.SaveThumbnailToJPEG
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ShellBrowser Delphi Components Documentation
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Use SaveThumbnailToJPEG to save a thumbnail image as jpeg-file.
class procedure SaveThumbnailToJPEG(const SourceFilename: Unicodestring; const ThumbnailFilename: Unicodestring; Width: Longint = 100; Height: LongInt = 100; Quality: LongInt = 80);
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Parameters |
Description |
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const SourceFilename: Unicodestring |
The source file name. |
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const ThumbnailFilename: Unicodestring |
The destination file name. |
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Width: Longint = 100 |
The width of the saved thumbnail. |
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Height: LongInt = 100 |
The height of the saved thumbnail. |
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Quality: LongInt = 80 |
The higher the Quality value (up to a maximum of 100), the better the image quality, but the larger the file size. |
This method gives the possibility to save thumbnail images as jpeg-file. It is possible to set the size of the picture with the parameters Width and Height. Use Compression to set the compression quality of the JPEG image when writing out a jpeg image. Higher compression results in a poorer picture quality, but a smaller file size. The higher the Quality value (up to a maximum of 100), the better the image quality, but the larger the file size. The lower the Quality value (to a minimum of 1), the smaller the resulting file size, but at the expense of picture quality.
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Exceptions |
Description |
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If the given file cannot be found. |
This example saves a thumbnail image as jpeg-file with a size of 150*150 pixel and a quality value of 50.
TJamThumbnailExtractor.SaveThumbnailToJPEG(JamThumbnailImage.Path, 'C:tempmyimage.jpg', 150, 150, 50);