Global Data Structures

The Photon API defines various data types and structures:

If you're using the Photon Application Builder (PhAB), the appropriate header files are automatically included in your application.
If you're not using PhAB, include <Pt.h>.

This chapter describes the data structures listed below:

The following datatypes are described in the Photon Library Reference:

ApInfo_t: PhAB information structure
PgColor_t: Composite color value
PgColorHSV_t: Hue-Saturation-Value color value
PhArea_t: Position and dimensions of a rectangular area
PhClipboardHdr: Clipboard header structure
PhDim_t: Dimensions of an area
PhEvent_t: An event
PhEventRegion_t: Emitter and collector of an event
PhImage_t: Data and characteristics of an image
PhPoint_t: Coordinates of a single point
PhRect_t: Coordinates of a rectangle
PhRegion_t: A region
PhRegionDataHdr_t: Data that's attached to a region
PhTile_t: A list of rectangles
PhWindowEvent_t: A window action
PtArg_t: Argument structure used for getting and setting widget resources
PtDndFetch_t: Structure that defines data types a widget accepts from a drag-and-drop event
PtFDProc_t: Type for defining a file-descriptor function
PtInputCallbackProc_t: Type for defining a input callback function
PtSignalProc_t: Type for defining a signal-handling function
PtWorkProc_t: Type for defining a work procedure function