Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12345]

▼Pmatlab
▼Pgams
▼Pcontrol
►Pengine
CConfiguration	Allows execution of jobs on a specific GAMS Engine instance
CJob	Manages the execution of a GAMS program given by GAMS model source for GAMS Engine
CJobBuilder	A builder of engine.Job
CRunParameters	Run parameters for engine.Job
►Pglobals
CArchType	GAMS enumerated type of architecture
CDebugLevel	Define GAMS Debug Level of different values and string representations
CEquType	Equation SubType
CModelStat	Model Solution Status
COSType	GAMS enumerated type of operating system
CSetType	Set SubType
CSolveStat	Solver termination condition
CSymbolUpdateType	GAMS Symbol update type
CUpdateAction	What field to update
CVarType	Variable SubType
►Poptions
CAction	GAMS processing request
CAppendExpand	Expand file append option
CAppendOut	Output file append option
CAsyncSolLst	Print solution listing when asynchronous solve (Grid or Threads) is used
CCaptureModelInstance	Switch to capture all model instances within a run
CCharSet	Character set flag
CCheckErrorLevel	Check errorLevel automatically after executing external program
CDFormat	Date format
CDigit	Switch default for "$on/offDigit"
CDumpOpt	Writes preprocessed input to the file input.dmp
CDumpParms	GAMS parameter logging
CECImplicitLoad	Allow implicit loading of symbols from embedded code or not
CECLogLine	Show log line about embedded code initialization and execution or not
CEmpty	Switch default for "$on/offEmpty"
CErrMsg	Placing of compilation error messages
CExecMode	Limits on external programs that are allowed to be executed
CFDOpt	Options for finite differences
CFileCase	Casing of file names and paths (put, gdx, ref, $include, etc.)
CFiltered	Switch between filtered and domain-checked read from GDX
CForceWork	Force GAMS to process a save file created with a newer GAMS version or with execution errors
CFreeEmbeddedPython	Free external resources at the end of each embedded Python code blocks
CgdxCompress	Compression of generated GDX file
CgdxConvert	Version of GDX files generated (for backward compatibility)
CgdxUels	Unload labels or UELs to GDX either squeezed or full
CHoldFixed	Treat fixed variables as constants
CHoldFixedAsync	Allow HoldFixed for models solved asynchronously as well
CImplicitAssign	Switch default for "$on/offImplicitAssign"
CInteractiveSolver	Allow solver to interact via command line input
CIntVarUp	Set mode for default upper bounds on integer variables
CKeep	Controls keeping or deletion of process directory and scratch files
CListing	Switch default for "$on/offListing"
CLogLine	Amount of line tracing to the log file
CLstCase	Output case option for LST file
CLstTitleLeftAligned	Write title of LST file all left aligned
CMemoryManager	Allows to try an experimental memory manager
CMIIMode	Model Instance Mode
CNoNewVarEqu	Triggers a compilation error when new equations or variable symbols are introduced
COn115	Generate errors for unknown unique element in an equation
CPageContr	Output file page control option
CPrefixLoadPath	Prepend GAMS system directory to library load path
CPreviousWork	Indicator for writing workfile with previous workfile version
CProcTreeMemMonitor	Monitor the memory used by the GAMS process tree
CPutNR	Numeric round format for put files
CReferenceLineNo	Controls the line numbers written to a reference file
CReplace	Switch between merge and replace when reading from GDX into non-empty symbol
CSavePoint	Save solver point in GDX file
CShowOSMemory	Show the memory usage reported by the Operating System instead of the internal counting
CSolPrint	Solution report print option
CSolveLink	Solver link option
CSolveOpt	Multiple solve management
CStepSum	Summary of computing resources used by job steps
CstrictSingleton	Error if assignment to singleton set has multiple elements
CStringChk	String substitution options
CSuffixAlgebraVars	Switch default for "$on/offSuffixAlgebraVars"
CSuffixDLVars	Switch default for "$on/offSuffixDLVars"
CSuppress	Compiler listing option
CSys10	Changes rpower to ipower when the exponent is constant and within 1e-12 of an integer
CSys11	Dynamic resorting if indices in assignment/data statements are not in natural order
CSysOut	Solver Status file reporting option
CTFormat	Time format
CTraceOpt	Trace file format option
CZeroResRep	Report underflow as a warning when abs(results) LE ZeroRes and result set to zero
►Putils
CIterator	Symbol / SymbolRecord Iterator
CAbstractRunParameters	Can be used to store parameters for running a job
CCheckpoint	Captures the state of a Job after the Job.run method has been carried out
CDatabase	Communicates data between the Matlab world and the GAMS world
CDatabaseDomainViolation	Stores a domain violation information for each symbol in a Database instance
CEquation	Representation of an equation symbol in GAMS
CEquationRecord	Representation of a single record of a Equation instance
CGlobals	Constants used by the GAMS Matlab API
CJob	Manages the execution of a GAMS program given by GAMS model source
CModelInstance	Modifying a model instance and solving the resulting problem in the most efficient way
CModelInstanceOpt	The ModelInstanceOpt can be used to customize the ModelInstance.solve routine
CModifier	Input to ModelInstance.instantiate
COptions	Manages GAMS options
CParameter	Representation of a parameter symbol in GAMS
CParameterRecord	Representation of a single record of a Parameter instance
CPrintStream	Print stream to write to stdout or file
CRunParameters	Run parameters for Job
CSet	Representation of a set symbol in GAMS
CSetRecord	Representation of a single record of a Set instance
CSymbol	Representation of a symbol in GAMS
CSymbolDomainViolation	Domain violation information for a Symbol instance
CSymbolRecord	Representation of a single record of a Symbol instance
CVariable	Representation of a variable symbol in GAMS
CVariableRecord	Representation of a single record of a Variable instance
CWorkspace	Base class in the GAMS package
CWorkspaceInfo	Input parameter for the Workspace constructor