https://www.leadtools.com/help/sdk/v22/dh/wf/rasterdialogmodca8subtypesindex.html
RasterDialogModca8SubTypesIndex Enumeration | Leadtools.WinForms.CommonDialogs.File | Raster,...
Modca 8 bit sub types Index, for RasterDialogFileTypesIndex.ModcaIoca file type index.
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