General File Access
APP_USER_DIR: Provide access to the application user directory.
APP_USER_DIR_QUERY: Locate existing application user directories.
DIALOG_PICKFILE: Create a native file-selection dialog.
FILE_BASENAME: Return the final segment of a file path.
FILE_CHMOD: Change file or directory access permissions.
FILE_COPY: Copy files or directories to a new location.
FILE_DELETE: Remove files or empty directories.
FILE_DIRNAME: Return the directory name of a file path.
FILE_EXPAND_PATH: Return a fully-qualified path.
FILE_INFO: Return status information about a file.
FILE_LINES: Return the number of lines of text in a file.
FILE_LINK: Create Unix file links.
FILE_MKDIR: Create a new directory or directories.
FILE_MOVE: Rename files or directories.
FILE_POLL_INPUT: Block processing until it detects that a read operation will succeed.
FILE_READLINK: Return the path pointed to by a Unix symbolic link.
FILE_SAME: Determine if two different file names refer to the same file.
FILE_SEARCH: Return the names of all files matching an input path.
FILE_TEST: Test a file or directory for existence and other attributes.
FILE_WHICH: Return the first file found by searching a specified path.
FILEPATH: Return the full path to a file in the IDL distribution.
FSTAT: Return information about a specified file unit.
PATH_SEP: Return the file path separator character for the current operating system.
Compressed File Formats
FILE_GZIP: Compress a file or files using the GZIP format.
FILE_GUNZIP: Uncompress a file or files using the GZIP format.
FILE_TAR: Create a TAR file from files and directories.
FILE_UNTAR: Untar a TAR file containing multiple files and directories.
FILE_ZIP: Create a ZIP file from files and directories.
FILE_UNZIP: Unzip a ZIP file containing multiple files and directories.
ZLIB_COMPRESS: Compress an in-memory array to a ZLIB stream.
ZLIB_UNCOMPRESS: Uncompress a ZLIB stream into an array.
Image Data Formats
Note: Also see Query Routines.
DIALOG_READ_IMAGE: Present a dialog for reading image files.
DIALOG_WRITE_IMAGE: Present a dialog for writing image files.
GET_DXF_OBJECTS: Return an object containing graphics from a DXF file.
IDLffDICOM: An object that reads a DICOM part 10 file.
IDLffJPEG2000: An object that reads or writes JPEG2000 files.
IDLffMJPEG2000: Create and play Motion JPEG2000 files.
IDLffMrSID: Query and load image data from a MrSID image file.
IDLffVideoWrite: Write images and audio to a video file.
READ_BMP: Read Microsoft Windows bitmap files (.BMP).
READ_DICOM: Read DICOM image files.
READ_GIF: Read GIF files.
READ_IMAGE: Read an image from a file.
READ_INTERFILE: Read Interfile (v3.3) files.
READ_JPEG: Read JPEG files.
READ_JPEG2000: Read JPEG 2000 files.
READ_MRSID: Read MrSID files.
READ_PICT: Read Mac PICT (version 2) files.
READ_PNG: Read Portable Network Graphics (PNG) files.
READ_PPM: Read PGM (gray scale) or PPM files.
READ_SRF: Read Sun Raster Format files.
READ_TIFF: Read TIFF files.
READ_VIDEO: Read video/audio files.
READ_X11_BITMAP: Read X11 bitmap files.
READ_XWD: Read X Windows Dump files.
WRITE_BMP: Write Microsoft Windows bitmap files (.BMP).
WRITE_GIF: Write GIF files.
WRITE_IMAGE: Write an image and its color table to a file.
WRITE_JPEG: Write JPEG files.
WRITE_JPEG2000: Write JPEG 2000 files.
WRITE_NRIF: Write NCAR Raster Interchange Format rasterfiles.
WRITE_PICT: Write Mac PICT (version 2) files.
WRITE_PNG: Write Portable Network Graphics (PNG) files.
WRITE_PPM: Write PPM (true-color) or PGM (gray scale) files.
WRITE_SRF: Write Sun Raster File (SRF) files.
WRITE_TIFF: Write TIFF files.
WRITE_VIDEO: Write video and audio files.
HDF, NetCDF, and CDF Formats
H5_BROWSER: Open a dialog to view an HDF5 file.
H5_PARSE: Return an IDL structure or ordered hash containing object information and data from an HDF5 file.
HDF_PARSE: Return an ordered hash containing object information and data from an HDF4 file.
HDF Routines: Hierarchical Data Format routines.
HDF5 Routines: Hierarchical Data Format routines (version 5).
HDF_BROWSER: Open a dialog to view an HDF, HDF-EOS, or NetCDF file.
EOS Routines: HDF-EOS (Hierarchical Data Format-Earth Observing System) routines.
HDF_READ: Extract HDF, HDF-EOS, and NetCDF data and metadata into an output structure.
NetCDF Routines: Network Common Data Format routines.
CDF Routines: Common Data Format routines.
GRIB Formats
GRIB Routines: Read and write GRIdded Binary (GRIB) 1 and GRIB 2 files.
Video Input/Output
Classes
IDLffVideoRead: Open and read video and audio files.
IDLffVideoWrite: Create a video and audio file.
Functions
QUERY_VIDEO: Obtains information about a video/audio file.
READ_VIDEO: Read video/audio files.
WRITE_VIDEO: Create video/audio files.
Other Data Formats
ASCII_TEMPLATE: A dialog that generates templates for reading ASCII files.
ASDF_PARSE: Read data from an ASDF (Advanced Scientific Data Format) file.
ASDF_WRITE: Write data out to an ASDF (Advanced Scientific Data Format) file.
BINARY_TEMPLATE: A dialog that generates templates for reading binary files.
JSON_PARSE: Convert a JSON (JavaScript Object Notation) string.
JSON_SERIALIZE: Convert a HASH or LIST into a JSON (JavaScript Object Notation) string.
IDLffShape: Contains geometry, connectivity and attributes for graphics primitives accessed from ESRI Shapefiles.
IDLffXMLDOM Classes* - Classes that provide support for IDL’s XML Document Object Model (DOM).
IDLffXMLSAX: Represents an XML SAX level 2 parser.
IDLgrVRML: Save the contents of an Object Graphics hierarchy into a VRML file.
READ_ASCII: Read data from an ASCII file.
READ_BINARY: Read data from a binary file.
READ_CSV: Read data from an comma-delimited text file.
READ_SYLK: Read data from a Symbolic Link file.
READ_WAV: Read audio stream from a WAV file.
READ_WAVE: Read a Wavefront Advanced Visualizer file.
WRITE_CSV: Write a comma-separated-values file.
WRITE_SYLK: Write a SYLK (Symbolic Link) file.
WRITE_WAV: Write an audio stream to a WAV file.
WRITE_WAVE: Write a Wavefront Advanced Visualizer file.
YAML_PARSE: Convert a YAML (YAML Ain't Markup Language) string or file.
YAML_SERIALIZE: Convert a HASH, LIST, or IDL variable into a YAML string.
General Input/Output
ASSOC: Associate an array structure with a file.
CLIPBOARD: Provide access to the system clipboard.
CLOSE: Close the specified file.
COPY_LUN: Copy data between two open files.
EOF: Test a file for the end-of-file condition.
FLUSH: Flush file unit buffers.
FOLDERWATCH: Monitors folders for changes and invokes a user-defined callback when a change occurs.
FREE_LUN: Free previously-reserved file units.
GET_KBRD: Get one input character.
GET_LUN: Reserve a logical unit number (file unit).
IOCTL: Perform special functions on UNIX files.
OPENR: Open a file for reading.
OPENU: Open a file for updating.
OPENW: Open a file for writing.
POINT_LUN: Set or get the current file pointer position.
PRINT: Write formatted output to the screen.
PRINTF: Write formatted output to a file.
READ: Read formatted input from the keyboard.
READF: Read formatted input from a file.
READS: Read formatted input from a string variable.
READU: Read unformatted binary data from a file.
SEM_CREATE: Create a semaphore in the current process.
SEM_DELETE: Destroy a semaphore.
SEM_LOCK: Attempt to gain the lock on an existing semaphore.
SEM_RELEASE: Release the lock on a semaphore.
SHMMAP: Map shared memory or local disk files into the memory address space.
SHMUNMAP: Remove a shared memory segment.
SHMVAR: Create an IDL array variable that uses shared memory.
SKIP_LUN: Read data in an open file and move the file pointer.
SOCKET: Open a client-side TCP/IP socket as an IDL file unit.
TRUNCATE_LUN: Truncate an open file at the current file pointer location.
WRITEU: Write unformatted binary data to a file.