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

[detail level 1234567]

▼NGwk
▶NControls
▶NInternal
CColorButton
▶NLayout
CCalcPosition
CCenter
CTable
CTableRow
CTile
▶NProperty
CBase
CCheckbox
CColorSelector
CComboBox
CFile
CFolder
CText
CBase	This is the base class for all Gwork controls
CBaseScrollBar
CButton
CCanvas
CCheckBox
CCheckBoxWithLabel
CCollapsibleCategory
CCollapsibleList
CColorLerpBox
CColorPicker
CColorSlider
CComboBox
CCrossSplitter
CDockBase
CDockedTabControl
CFieldLabel
CFilePicker
CFolderPicker
CGroupBox
CHorizontalScrollBar
CHorizontalSlider
CHSVColorPicker
CImagePanel
CLabel	A control that contains a text item
CLabelClickable
CLabeledRadioButton
CListBox
CMenu
CMenuDivider
CMenuItem
CMenuStrip
CNumericUpDown
CNumericUpDownButton_Down
CNumericUpDownButton_Up
CPageControl
CPasswordTextBox
CProgressBar
CProperties
CPropertyRow
CPropertyTree
CPropertyTreeNode
CRadioButton
CRadioButtonController
CRectangle
CResizableControl
▶CRichLabel
CDividedText
CScrollControl
CSlider
CSplitterBar
CSplitterHorizontal
CSplitterVertical
CStatusBar
CTabButton
CTabControl
CTabStrip
CTabTitleBar
CTextBox
CTextBoxMultiline
CTextBoxNumeric
CToolBarButton
CToolBarStrip
CTreeControl
CTreeNode
CVerticalScrollBar
CVerticalSlider
CWindowCanvas
CWindowCloseButton
CWindowControl
CWindowMaximizeButton
CWindowMinimizeButton
▶NControlsInternal
CColorDisplay
CDragger
CHighlight
CModal
CResizer
CScrollBarBar
CScrollBarButton
CSliderBar
CText
▶NDragAndDrop
CPackage
▶NEvent
▶CCaller	Event callback management
CHandlerInstance
CHandler	A class wanting to receive events must be derived from this
CInformation
CPacket
▶NHook
CBaseHook
▶NInput
CAllegro
▶CGLFW3
CKeyEvent
CMouseEvent
CIrrlicht
CNull
CSDL2
CSFML
CWindows	Translate Windows system messages into Gwork events
▶NPlatform
CRelativeToExecutablePaths
▶NRenderer
CAllegro	Renderer for Allegro5
CAllegroResourceLoader	Default resource loader for Allegro5
CBase	Base class for all renderer implementations
▶CDirectX11	Renderer for DirectX11
CVertexBuffer
CVertexFormat
CDirectX11ResourceLoader
▶CDirectX9	Renderer for DirectX9
CVertexFormat
CICacheToTexture
CIrrlicht
CIrrlichtResourceLoader
CNull	Null renderer that does not render!
▶COpenGL	Renderer for OpenGL
CVertex
COpenGL_DebugFont
COpenGLCore	Renderer for OpenGL Core Profile
COpenGLResourceLoader	Default resource loader for Allegro5
CPixelBuffer	Simple 2D pixel buffer
CSDL2	Renderer for SDL2
CSDL2ResourceLoader	Default resource loader for SDL2
CSFML2	Renderer for SFML2
CSFML2ResourceLoader	Default resource loader for SFML2
CSoftware	Renders to a buffer without needing external dependencies
CSoftwareResourceLoader	Default resource loader for software renderer
▶NSkin
▶NTexturing
▶CBordered
CSubRect
CSingle	Handle drawing a single textured rectangle
CActive_t.Colors.Tab.Active
CBase
CBase.Colors
CButton_t.Colors.Button
CCategory_t.Colors.Category
CInactive_t.Colors.Tab.Inactive
CLabel_t.Colors.Label
CLine_t.Colors.Category.Line
CLineAlt_t.Colors.Category.LineAlt
CProperties_t.Colors.Properties
CSimple
CTab_t.Colors.Tab
▶CTexturedBase
▶CTextures_t
CCategoryList_t
▶CCheckbox_t
CActive_t
CDisabled_t
▶CInput_t
CButton_t
▶CComboBox_t
CButton_t
CListBox_t
▶CSlider_t
CH_t
CV_t
▶CUpDown_t
CDown_t
CUp_t
CMenu_t
CPanel_t
CProgressBar_t
▶CRadioButton_t
CActive_t
CDisabled_t
▶CScroller_t
CButton_t
▶CTab_t
CBottom_t
CLeft_t
CRight_t
CTop_t
CTextBox_t
CTree_t
CWindow_t
CTree_t.Colors.Tree
CWindow_t.Colors.Window
CColor
CColor.__unnamed__
CColor.__unnamed__.__unnamed__
CControlList
CFont
CHSV
CIInputEventListener
CMargin
CPoint
CRect
CResourceLoader
CResourcePaths
CTEasyList
CTexture
CUserDataStorage
CWindowProvider
CTestAPI
CTestCategory	Tab page into which test category goes
CTestFrame	Frame into which all tests go
CTestUnit	Individual test. All tests derive from this