Identifies the formats available for saving.
Values:
| IG_SAVE_BMP_RLE | Microsoft Windows bitmap with RLE compression |
| IG_SAVE_BMP_UNCOMP | Microsoft Windows bitmap uncompressed |
| IG_SAVE_BRK_G3 | BTR with Group 3 compression |
| IG_SAVE_BRK_G3_2D | BTR with Group 3 2D compression |
| IG_SAVE_CAL | CAL |
| IG_SAVE_CGM | CGM |
| IG_SAVE_CLP | CLP |
| IG_SAVE_DCM | DICOM |
| IG_SAVE_DCX | Paintbrush |
| IG_SAVE_DWF | DWF |
| IG_SAVE_DWG | DWG |
| IG_SAVE_DXF | DXF |
| IG_SAVE_EPS_G3 | Encapsulated postscript with Group 3 compression |
| IG_SAVE_EPS_G4 | Encapsulated postscript with Group 4 compression |
| IG_SAVE_EPS_JPG | Encapsulated postscript with JPG compression |
| IG_SAVE_EPS_UNCOMP | Encapsulated postscript uncompressed |
| IG_SAVE_EXIF_JPEG | Exchangeable image file format |
| IG_SAVE_EXIF_TIFF | Exchangeable image file format (EXIF-TIFF) |
| IG_SAVE_FPX_JPG | FlashPix with JPEG compression |
| IG_SAVE_FPX_NOCHANGE | FlashPix with the current compression |
| IG_SAVE_FPX_SINCOLOR | FlashPix with the single color compression |
| IG_SAVE_FPX_UNCOMP | FlashPix uncompressed |
| IG_SAVE_GIF | GIF |
| IG_SAVE_ICA_G3 | IBM IOCA with Group 3 compression |
| IG_SAVE_ICA_G4 | IBM IOCA with Group 4 compression |
| IG_SAVE_ICA_IBM_MMR | IBM IOCA with IBM MMR compression |
| IG_SAVE_ICO | windows icon |
| IG_SAVE_IFF | Interchange uncompressed |
| IG_SAVE_IFF_RLE | Interchange with RLE compression |
| IG_SAVE_IMT | IMT |
| IG_SAVE_JB2 | Reserved for future use. |
| IG_SAVE_JBIG | JBIG |
| IG_SAVE_JPEG2K | JPEG2000 |
| IG_SAVE_JPG | JPEG File Interchange |
| IG_SAVE_JPX | JPX |
| IG_SAVE_LURADOC | This value has been deprecated and will be removed from the public API in a future release. |
| IG_SAVE_LURAJP2 | This value has been deprecated and will be removed from the public API in a future release. |
| IG_SAVE_LURAWAVE | This value has been deprecated and will be removed from the public API in a future release. |
| IG_SAVE_MOD_G3 | IBM MO:DCA with Group 3 compression |
| IG_SAVE_MOD_G4 | IBM MO:DCA with Group 4 compression |
| IG_SAVE_MOD_IBM_MMR | IBM MO:DCA with MMR compression |
| IG_SAVE_NCR | NCR uncompressed |
| IG_SAVE_NCR_G4 | NCR with Group 4 compression |
| IG_SAVE_PBM_ASCII | PBM converted to ASCII text |
| IG_SAVE_PBM_RAW | PBM binary row format |
| IG_SAVE_PCT | Mac Pict |
| IG_SAVE_PCX | PC Paintbrush File Format |
| IG_SAVE_PDF_DEFLATE | Adobe PDF with Deflate compression |
| IG_SAVE_PDF_G3 | Adobe PDF with Group 3 compression |
| IG_SAVE_PDF_G3_2D | Adobe PDF with Group3 2D compression |
| IG_SAVE_PDF_G4 | Adobe PDF with Group 4 compression |
| IG_SAVE_PDF_JPG | Adobe PDF with JPEG compression |
| IG_SAVE_PDF_LZW | Adobe PDF with LZW compression |
| IG_SAVE_PDF_RLE | Adobe PDF with RLE compression |
| IG_SAVE_PDF_UNCOMP | Adobe PDF uncompressed |
| IG_SAVE_PJPEG | Not supported |
| IG_SAVE_PNG | Portable network graphics |
| IG_SAVE_PS_DEFLATE | Postscript with Deflate compression |
| IG_SAVE_PS_G3 | Postscript with Group 3 compression |
| IG_SAVE_PS_G3_2D | Postscript with Group3 2D compression |
| IG_SAVE_PS_G4 | Postscript with Group 4 compression |
| IG_SAVE_PS_JPG | Postscript with JPEG compression |
| IG_SAVE_PS_LZW | Postscript with LZW compression |
| IG_SAVE_PS_RLE | Postscript with RLE compression |
| IG_SAVE_PS_UNCOMP | Postscript uncompressed |
| IG_SAVE_PSB | Adobe PSB |
| IG_SAVE_PSB_PACKED | Adobe PSB with packed bits compression |
| IG_SAVE_PSD | Adobe PSD |
| IG_SAVE_PSD_PACKED | Adobe PSD with packed bits compression |
| IG_SAVE_RAS | RAS |
| IG_SAVE_RAW_G3 | RAW with Group 3 compression |
| IG_SAVE_RAW_G32D | RAW with Group 3 2D compression |
| IG_SAVE_RAW_G4 | RAW with Group 4 compression |
| IG_SAVE_RAW_LZW | RAW with LZW compression |
| IG_SAVE_RAW_RLE | RAW with RLE compression |
| IG_SAVE_SCI_ST | Scitex CT format |
| IG_SAVE_SGI | SGI |
| IG_SAVE_SGI_RLE | SGI with RLE compression |
| IG_SAVE_SVG | SVG |
| IG_SAVE_TGA | TGA |
| IG_SAVE_TGA_RLE | TGA with RLE compression |
| IG_SAVE_TIF_G3 | Tagged Image File Format with Group 3 compression |
| IG_SAVE_TIF_G3_2D | Tagged Image File Format with Group 3 2D compression |
| IG_SAVE_TIF_G4 | Tagged Image File Format with Group 4 compression |
| IG_SAVE_TIF_HUFFMAN | Tagged Image File Format with Huffman compression |
| IG_SAVE_TIF_JPG | Tagged Image File Format with JPEG compression |
| IG_SAVE_TIF_LZW | Tagged Image File Format with LZW compression |
| IG_SAVE_TIF_PACKED | Tagged Image File Format with Packed Bits compression |
| IG_SAVE_TIF_UNCOMP | Tagged Image File Format uncompressed |
| IG_SAVE_U3D | U3D |
| IG_SAVE_UNKNOWN | Unknown format |
| IG_SAVE_WBMP | Wireless Bitmap File Format |
| IG_SAVE_WL16 | Not supported |
| IG_SAVE_WLT | Not supported |
| IG_SAVE_WMF | Windows MetaFile |
| IG_SAVE_XBM | XBM |
| IG_SAVE_XPM | XPM |
| IG_SAVE_XPS | XPS (XML Paper Specification) |
| IG_SAVE_XWD | XWD |