CAST II Game Engine

Unit BaseMsg

Description

Base messages unit

(C) 2003-2007 George "Mirage" Bakhtadze. www.casteng.com
The source code may be used under either MPL 1.1 or LGPL 2.1 license. See included license.txt file
Unit contains base message classes and message management classes

Classes, Interfaces and Objects

Name	Description
Class `TBaseItem`
Class `TCancelModeMsg`
Class `TCharInputMsg`
Class `TDataAdressChangeMsg`
Class `TDataModifyMsg`
Class `TForceQuitMsg`
Class `TInputMessage`
Class `TKeyboardMsg`
Class `TKeyClickMsg`
Class `TKeyDblClickMsg`
Class `TKeyDownMsg`
Class `TKeyUpMsg`
Class `TMessage`	Base class for all message classes
Class `TMessagePool`	Message pool class
Class `TMessageSubsystem`	Asynchronous messages queue implementation
Class `TMouseButtonMsg`
Class `TMouseClickMsg`
Class `TMouseDblClickMsg`
Class `TMouseDownMsg`
Class `TMouseMoveMsg`
Class `TMouseMsg`
Class `TMouseUpMsg`
Class `TNotificationMessage`
Class `TOptionsApplyMsg`
Class `TOptionsApplyNotifyMsg`
Class `TOptionsPreviewMsg`
Class `TOSMessage`
Class `TPauseMsg`
Class `TProgressMsg`
Class `TResumeMsg`
Class `TSubsystemMsg`
Class `TSystemMessage`
Class `TWindowActivateMsg`
Class `TWindowDeactivateMsg`
Class `TWindowMenuCommand`
Class `TWindowMinimizeMsg`
Class `TWindowMoveMsg`
Class `TWindowResizeMsg`

Types

Overview

CKeyboardMsg = of TKeyboardMsg;

CMessage = of TMessage;

CSubsystem = of TSubsystem;

PPool = ^TPool;

TMessageHandler = procedure(const Msg: TMessage) of object;

TMessages = array of TMessage;

TMessageString = ShortString;

TPool = record Store: Pointer; Size: Cardinal; end;

TSubsystem = TBaseItem;

Description

CKeyboardMsg = of TKeyboardMsg;

Reference to keyboard message class

CMessage = of TMessage;

Message class reference

CSubsystem = of TSubsystem;

Subsystem metaclass

PPool = ^TPool;

TMessageHandler = procedure(const Msg: TMessage) of object;

Message handler delegate

TMessages = array of TMessage;

Array of messages

TMessageString = ShortString;

Type to use as string type in messages. Do not use in messages types which needs finalization (such as dynamic arrays or long strings)

TPool = record Store: Pointer; Size: Cardinal; end;

Message pool data structure

TSubsystem = TBaseItem;

Base class for all subsystems

Subsystem is a set of routines which implements some specific function and can be connected/disconnected or replaced during runtime.
Subsystems are usually arranged in one or more classes/units

Enumerations

`TSubsystemAction`
Subsystem action type for `TSubsystemMsg` message
	`saConnect`	subsystem connected
	`saDisconnect`	subsystem disconnected

Constants

Overview

MessagePoolInitialCapacity = 256*256;

MessagesCapacityStep = 16;

Description

MessagePoolInitialCapacity = 256*256;

Initial capacity of messages pool in bytes

MessagesCapacityStep = 16;

Message pool grow step

Variables

Overview

MessagePool: TMessagePool;

Description

MessagePool: TMessagePool;