Identifies the formats supported by ImageGear.
Values:
| IG_FORMAT_ABIC_BILEVEL | IBM ABIC |
| IG_FORMAT_ABIC_CONCAT | IBM ABIC |
| IG_FORMAT_AFX | Auto FX |
| IG_FORMAT_ATT | Not supported |
| IG_FORMAT_AVI | AVI |
| IG_FORMAT_BMP | Microsoft Windows Bitmap |
| IG_FORMAT_BRK | BTR |
| IG_FORMAT_CAD | Not supported |
| IG_FORMAT_CAL | CAL |
| IG_FORMAT_CGM | CGM |
| IG_FORMAT_CLP | CLP |
| IG_FORMAT_CUR | Windows Cursors |
| IG_FORMAT_CUT | CUT |
| IG_FORMAT_DCM | DICOM |
| IG_FORMAT_DCRAW | Digital Camera Raw format |
| IG_FORMAT_DCX | Paintbrush |
| IG_FORMAT_DGN | DGN |
| IG_FORMAT_DIB | The same as IG_FORMAT_BMP |
| IG_FORMAT_DWF | DWF |
| IG_FORMAT_DWG | DWG |
| IG_FORMAT_DXF | DXF |
| IG_FORMAT_EPS | Encapsulated postscript |
| IG_FORMAT_EXIF_JPEG | Exchangeable image file format |
| IG_FORMAT_EXIF_TIFF | Exchangeable image file format (EXIF-TIFF) |
| IG_FORMAT_FPX | FlashPix |
| IG_FORMAT_G3 | Group 3 |
| IG_FORMAT_G32D | Group 3 2D |
| IG_FORMAT_G4 | Group 4 |
| IG_FORMAT_GEM | GEM Raster |
| IG_FORMAT_GIF | GIF |
| IG_FORMAT_HLDCRAW | Headerless Digital Camera Raw format |
| IG_FORMAT_HPGL | HPGL |
| IG_FORMAT_ICA | IBM IOCA |
| IG_FORMAT_ICO | Windows icon |
| IG_FORMAT_IFF | Interchange File Format |
| IG_FORMAT_IMR | IMR |
| IG_FORMAT_IMT | IMT |
| IG_FORMAT_JB2 | Reserved for future use. |
| IG_FORMAT_JBIG | JBIG |
| IG_FORMAT_JPEG2K | JPEG2000 |
| IG_FORMAT_JPG | JPEG File Interchange |
| IG_FORMAT_JPX | JPX |
| IG_FORMAT_KFX | KFX |
| IG_FORMAT_LURADOC | This value has been deprecated and will be removed from the public API in a future release. |
| IG_FORMAT_LURAJP2 | This value has been deprecated and will be removed from the public API in a future release. |
| IG_FORMAT_LURAWAVE | This value has been deprecated and will be removed from the public API in a future release. |
| IG_FORMAT_LV | LV |
| IG_FORMAT_MAC | MAC |
| IG_FORMAT_MOD | IBM MO:DCA |
| IG_FORMAT_MODCA | Not supported |
| IG_FORMAT_MSP | MSP |
| IG_FORMAT_MUL | MULTIMEDIA |
| IG_FORMAT_NCR | NCR |
| IG_FORMAT_PBM | PBM |
| IG_FORMAT_PCD | PCD |
| IG_FORMAT_PCT | Mac PICT |
| IG_FORMAT_PCX | PC Paintbrush File Format |
| IG_FORMAT_PDF | Adobe PDF |
| IG_FORMAT_PGM | Not supported |
| IG_FORMAT_PJPEG | Not supported |
| IG_FORMAT_PNG | Portable Network Graphics |
| IG_FORMAT_PNM | Not supported |
| IG_FORMAT_POSTSCRIPT | Not supported |
| IG_FORMAT_PPM | Not supported |
| IG_FORMAT_PSB | Adobe PSB |
| IG_FORMAT_PSD | Adobe PSD |
| IG_FORMAT_PTOCA | PTOCA file |
| IG_FORMAT_RAS | RAS |
| IG_FORMAT_RAW | RAW |
| IG_FORMAT_SCI_CT | Scitex CT file |
| IG_FORMAT_SCITEX | Not supported |
| IG_FORMAT_SGI | SGI |
| IG_FORMAT_STX | Not supported |
| IG_FORMAT_TGA | TGA |
| IG_FORMAT_TIF | Tagged Image File Format |
| IG_FORMAT_TXT | TXT |
| IG_FORMAT_U3D | U3D format |
| IG_FORMAT_UNKNOWN | Unknown format |
| IG_FORMAT_WBMP | Wireless Bitmap File Format |
| IG_FORMAT_WL16 | Not supported |
| IG_FORMAT_WLT | Not supported |
| IG_FORMAT_WMF | Windows MetaFile |
| IG_FORMAT_WPG | WPG |
| IG_FORMAT_XBM | XBM |
| IG_FORMAT_XMP | XMP Metadata format |
| IG_FORMAT_XPM | XPM |
| IG_FORMAT_XPS | XPS format |
| IG_FORMAT_XRX | IMG |
| IG_FORMAT_XWD | XWD |