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:

PtBalloonCallback_t

Balloon callback structure

PtCallback_t

Regular callback structure

PtCallbackInfo_t

Specific callback information

PtHotkeyCallback_t

Hotkey handler structure

PtRawCallback_t

Event handler structure

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