Does anyone know how to display an image in the TFileOpenDialog preview?
I am using ImageEn to display image information and to add additional file type support to the dialog. For example... I can load image information about jp2, j2k and other files types not supported, but how to load an unsupported image type for preview using ImageEn.
I am displaying image information in the dialog that works nicely, but I can not find any information about how to load an unsupported image into the PreviewHandler anywhere. I can use ImageEnIO to get the file information as well as a bitmap of the image.
Does TFileOpenDialog use a preview handler to display the image or is some other way needed?
I am sorry I do not have code to show for displaying the image, but I do not know how to implement it.
Rodrigo commented on Hosting Preview Handlers in Delphi VCL Applications. that the windows explorer does not use a preview handler to preview the images... so I assume the TFileOpenDialog uses the same API as Windows Explorer, but I am not even sure of this. http://theroadtodelphi.wordpress.com/2013/05/24/hosting-preview-handlers-in-delphi-vcl-applications/
If this question is too broad to be accepted here I will delete the question.
File Explorer Preview Pane Open File Explorer in Windows 10, click the View tab, and select Preview pane. Click a file you wish to view, such as a Word document, Excel sheet, PowerPoint presentation, PDF, or image. The file appears in the preview pane.
...that the windows explorer does not use a preview handler to preview the images.
When I said that i mean for the standard image formats like gif, jpeg, bmp, png and so on. For another custom formats you must implement a Preview handler, additionally you can register a thumbnail using a Thumbnail Handlers and the IThumbnailProvider interface.
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