Member name	Value	Description
ExportFlags_GenWorldFile	1	Generate a world file
ExportFlags_GenPRJFile	2	Generate a projection (PRJ) file
ExportFlags_GenTABFile	4	Generate a MapInfo TAB file
ExportFlags_Grayscale	8	Generate a grayscale image (raster only)
ExportFlags_Palette	16	Generate a paletted image (raster only)
ExportFlags_HideProgress	32	Don't show export progress
ExportFlags_JPGinTIFF	64	Create a JPG compressed GeoTIFF file (Export_GeoTIFF format only)
ExportFlags_FillSmallGaps	128	Fill small gaps in data when exporting elevation data
ExportFlags_AllowLossy	256	Allow lossy export to GMG
ExportFlags_16BitSamples	512	Use signed 16-bit integer elevation values (Export_BIL and Export_Erdas_Elevation formats only)
ExportFlags_UseLZW	1024	Use LZW compression for GeoTIFF file (Export_GeoTIFF format only)
ExportFlags_NoTransparent	2048	Don't mark background pixels transparent for PNG file (Export_PNG format only)
ExportFlags_AddAlpha	4096	Add an alpha channel to formats that support it (need for Export_GeoTIFF [24-bit only], enabled by default for Export_PNG)
ExportFlags_SeparateVectorLayers	8192	Draw each vector separately rather than drawing all at once when exporting vector data
ExportFlags_HidePartialLabels	16384	Don't draw any labels that are only partially within the export box
ExportFlags_ExportSlopeValues	32768	Export slope values rather than elevation values (Export_FloatGrid only)
ExportFlags_ExportSlopeDirValues	65536	Export slope direction values rather than elevation values (Export_FloatGrid only)
ExportFlags_UseEsriHdrFormat	131072	Export ESRI format HDR for Export_BIL format
ExportFlags_BigEndian	262144	Save big endian elevation samples for Export_BIL format
ExportFlags_ForceSquareSamples	524288	Force square samples in the export. The provided pixel dimensions will be altered to get close, then the provided bounds will grow in one direction to make this happen
ExportFlags_NoCompression	1048576	Disable compression (Export_GeoTIFF format only)
ExportFlags_UseRGBIfTooManyColors	2097152	Use 24-bit RGB image rather than palette if more than 256 unique colors are in output
ExportFlags_SkipEmpty	4194304	Abort if empty
ExportFlags_GenAuxXmlFile	8388608	Generate an ESRI .aux.xml file with the projection in it
ExportFlags_UseDeflate	16777216	Use Deflate/Zip compression for GeoTIFF file (Export_GeoTIFF format only)
ExportFlags_ExcludeVectorLayers	33554432	Should we exclude any vector layers from the export?
ExportFlags_IncludeMapLayout	67108864	Should we include enabled map layout elements like distance scale, elevation legend, legend, etc.?
ExportFlags_BestRasterLayers	268435456	Only draw the best raster layers for this zoom scale
ExportFlags_BestRasterLayersHiRes	805306368	Same as ExportFlags_BestRasterLayers, only it shows higher resolution layers a bit sooner
ExportFlags_LowResRasterLayers	536870912	Only draw the lowest resolution raster layers
ExportFlags_HiResRasterLayers	1073741824	Only draw the highest resolution raster layers
ExportFlags_BestRasterChart	1342177280	Only draw the best raster chart (this is tuned for marine chart display)
GM_ExportFlags_RasterMask	4026531840	Mask for raster draw options

Reference

GlobalMapper Namespace