Vcl.Markdown.TMDStyle.OnUnknownImage
Prototype
property OnUnknownImage: TUnknownImageEvent read FOnUnknownImage write FOnUnknownImage;
Description
Occurs when an image file cannot be loaded because the format of the file is not supported by the Windows Imaging Component (WIC).
aFileName contains the fully qualified path and filename to load. aFileName can be a temporary cached file if the image was downloaded from the Internet. aSize is the optimal image size for rendering, it can be null. aImage is the object to fill with the resulting image.
If a control associated with this component also handles this event, it is called first, TMDStyle.OnUnknowImage is called only if the control returns an empty image.
See TMDCustomControl.OnUnknownImage for more information.