• Data Types
  • ACCEL
  • ACCELTABLE
  • APIRET
  • APSZ
  • ARCPARAMS
  • AREABUNDLE
  • ATOM
  • BITMAPARRAYFILEHEADER
  • BITMAPARRAYFILEHEADER2
  • BITMAPFILEHEADER
  • BITMAPFILEHEADER2
  • BITMAPINFO
  • BITMAPINFO2
  • BITMAPINFOHEADER
  • BITMAPINFOHEADER2
  • BIT8
  • BIT16
  • BIT32
  • BOOL
  • BOOKPAGEINFO
  • BOOKTEXT
  • BTNCDATA
  • BYTE
  • CATCHBUF
  • CDATE
  • CHAR
  • CHARBUNDLE
  • CLASSINFO
  • CNRDRAGINFO
  • CNRDRAGINIT
  • CNRDRAWITEMINFO
  • CNREDITDATA
  • CNRINFO
  • CNRLAZYDRAGINFO
  • COLOR
  • CONVCONTEXT
  • CREATESTRUCT
  • CSBITMAPDATA
  • CTIME
  • CTLCOLOR
  • Control-Data
  • CURSORINFO
  • DDEINIT
  • DDESTRUCT
  • DELETENOTIFY
  • DESKTOP
  • DEVOPENSTRUC
  • DLGTEMPLATE
  • DLGTITEM
  • DRAGIMAGE
  • DRAGINFO
  • DRAGITEM
  • DRAGTRANSFER
  • DRIVDATA
  • ENTRYFDATA
  • ERRINFO
  • ERRORID
  • ESCMODE
  • ESCSETMODE
  • FACENAMEDESC
  • FATTRS
  • FFDESCS
  • FIELDINFO
  • FIELDINFOINSERT
  • FILEDLG
  • FIXED
  • FONTDLG
  • FONTMETRICS
  • FRAMECDATA
  • GETPORTFROMQ
  • GRADIENTL
  • GRIDINFO
  • GRIDSQUARE
  • HAB
  • HACCEL
  • HAPP
  • HATOMTBL
  • HBITMAP
  • HCINFO
  • HDC
  • HDDF
  • HELPINIT
  • HELPSUBTABLE
  • HELPTABLE
  • HENUM
  • HEV
  • HINI
  • HLIB
  • HMF
  • HMODULE
  • HMQ
  • HMTX
  • HMUX
  • HOBJECT
  • HPOINTER
  • HPROGRAM
  • HPS
  • HRGN
  • HSAVEWP
  • HSEM
  • HSPL
  • HSTR
  • HSWITCH
  • HWND
  • ICONINFO
  • IMAGEBUNDLE
  • IPT
  • LBOXINFO
  • LHANDLE
  • LINEBUNDLE
  • LONG
  • MARKERBUNDLE
  • MATRIXLF
  • MB2D
  • MB2INFO
  • MENUITEM
  • MINIRECORDCORE
  • MLE_SEARCHDATA
  • MLECTLDATA
  • MLEMARGSTRUCT
  • MPARAM
  • MQINFO
  • MRESULT
  • NOTEBOOKBUTTON
  • NOTIFYDELTA
  • NOTIFYRECORDEMPHASIS
  • NOTIFYRECORDENTER
  • NOTIFYSCROLL
  • OBJCLASS
  • MLEOVERFLOW
  • OWNERBACKGROUND
  • OWNERITEM
  • PAGEINFO
  • PAGESELECTNOTIFY
  • PANOSE
  • PARAM
  • PCH
  • PCSZ
  • PDEVOPENDATA
  • PFN
  • PFNWP
  • PID
  • PIX
  • PKERNPAIRS
  • POINTERINFO
  • POINTL
  • POINTS
  • PORTFROMQ
  • PQMOPENDATA
  • PRDINFO3
  • PRDRIVINFO
  • PRESPARAMS
  • PRFHOOKPARMS
  • PRFPROFILE
  • PRINTDEST
  • PRINTERINFO
  • PRJINFO2
  • PRJINFO3
  • PRJINFO4
  • PROGCATEGORY
  • PROGDETAILS
  • PROGRAMENTRY
  • PROGTYPE
  • PRPORTINFO
  • PRPORTINFO1
  • PRPORTINFO2
  • PRQINFO3
  • PRQINFO6
  • PRQPROCINFO
  • PSZ
  • PVOID
  • PWPOINT
  • QMJOBINFO
  • QMSG
  • QUERYRECFROMRECT
  • QUERYRECORDRECT
  • RECORDCORE
  • RECORDINSERT
  • RECTL
  • RENDERFILE
  • RGB
  • RGB2
  • RGNRECT
  • SBCDATA
  • SEARCHSTRING
  • SEGOFF
  • SHORT
  • SIZEF
  • SIZEL
  • SLDCDATA
  • SMHSTRUCT
  • SPBCDATA
  • SPLERR
  • STR8
  • STR16
  • STR32
  • STR64
  • STYLECHANGE
  • SWBLOCK
  • SWCNTRL
  • SWENTRY
  • SWP
  • TID
  • TRACKINFO
  • TREEITEMDESC
  • TREEMOVE
  • UCHAR
  • ULONG
  • USERBUTTON
  • USHORT
  • VIDEOMODEINFO
  • VIOFONTCELLSIZE
  • VIOSIZECOUNT
  • VOID
  • VSCDATA
  • VSDRAGINFO
  • VSDRAGINIT
  • VSTEXT
  • WNDPARAMS
  • WPOINT
  • WRECT
  • XYWINSIZE
• Errors
  • Error Number and Name
  • Error Name and Explanation
• Atom Tables
  • About Atom Tables
    • System Atom Table
    • Private Atom Tables
    • Atom Types
      • String Atoms
      • Integer Atoms
    • Atom Creation and Usage Count
    • Atom Deletion
    • Atom Queries
    • Atom String Formats
  • Using Atom Tables
    • Creating Unique Window-Message Atoms
    • Creating DDE Formats and a Unique Clipboard Format
• Button Controls
  • About Button Controls
    • Button Types
      • Push Buttons
      • Radio Buttons
      • Check Boxes
      • Three-State Check Boxes
      • Application-defined Buttons
    • Button Styles
    • Default Button Behavior
    • Button Notification Messages
    • Button States
    • Custom Buttons
  • Using Button Controls
    • Using Buttons in a Dialog Window
    • Using Buttons in a Client Window
    • Creating Buttons with Icons and Icon/Text Combinations
• Clipboards
  • About the Clipboard
    • Shared Memory and the Clipboard
    • Clipboard Operations
      • Cut and Copy Operations
      • Paste Operation
    • Standard Clipboard-Data Formats
    • Private Clipboard-Data Formats
      • Format Identification Number
      • Display Formats
    • Delayed Rendering
    • Clipboard Viewer
    • Clipboard Owner
  • Using the Clipboard
    • Putting Data on the Clipboard
    • Retrieving Data from the Clipboard
    • Viewing Data on the Clipboard
• Combination Box
  • About Combination-Box Controls
    • Combination-Box Styles
    • Combination-Box Notification Codes
  • Using Combination-Box Controls
• Container Controls
  • About Container Controls
    • Container Control Functionality
    • Container Items
    • Container Views
      • Icon View
      • Name View
        • Non-Flowed Name View
        • Flowed Name View
      • Text View
        • Non-Flowed Text View
        • Flowed Text View
      • Tree View
        • Tree Icon View and Tree Text View
        • Tree Name View
      • Details View
        • Determining the Width of a Column in a Details View
        • Split Bar Support for the Details View
  • Using Container Controls
    • Creating a Container
    • Allocating Memory for Container Records
    • Allocating Memory for Container Columns
    • Inserting Container Records
    • Removing Container Records
    • Setting the Container Control Focus
    • Using Container Views
    • Changing a Container View
    • Creating a Grid for Icons
  • Graphical User Interface Support for Container Controls
    • Scrolling
    • Dynamic Scrolling
    • Selecting Container Items
      • Selection Types
      • Selection Techniques
      • Selection Mechanisms
    • Providing Emphasis
    • Using Direct Manipulation
  • Enhancing Container Controls Performance and Effectiveness
    • Positioning Container Items
      • Scrollable Workspace Areas
      • Workspace and Work Area Origins
    • Specifying Space between Container Items
    • Providing Source Emphasis
    • Providing Target Emphasis
    • Specifying Deltas for Large Amounts of Data
    • Direct Editing of Text in a Container
    • Searching for Exact Text String Matches
    • Specifying Container Titles
    • Specifying Fonts and Colors
    • Drawing Container Items and Painting Backgrounds
    • Filtering Container Items
    • Optimizing Container Memory Usage
      • Allocating Memory for when Using MINIRECORDCORE
      • Sharing Records among Multiple Containers
      • Invalidating Records Shared by Multiple Containers
      • Freeing Records Shared by Multiple Containers
  • Sample Code for Container Controls
    • Container Application Sample Code
• Control Windows
  • About Control Windows
  • Using Control Windows
    • Using Control Windows in a Dialog Window
    • Using Control Windows in a Non-Dialog Window
    • Creating a Custom Control Window
• Cursors
  • About Cursors
    • Cursor Creation and Destruction
      • Position and Size
      • Other Cursor Characteristics
    • Cursor Visibility
  • Using Cursors
    • Creating and Destroying a Cursor
• Dialog Windows
  • About Dialog Windows
    • Modal and Modeless Dialog Windows
    • Dialog Items
    • Dialog-Item Groups
    • Message Boxes
      • Standard Message Boxes
      • Enhanced Message Boxes
    • Minimizing Dialog Windows
    • Dialog Data Structures
    • Dialog Resources
  • Using Message Boxes and Dialog Windows
    • Creating a Standard Message Box
      • Creating a System-Modal Standard Message Box
      • Creating an Enhanced Message Box
    • Using a Dialog Window
      • Creating a Dialog Template
      • Creating a Modal Dialog Window
      • Creating a Modeless Dialog Window
      • Initializing a Dialog Window
      • Adding a Menu in a Dialog Window
      • Creating a Dialog Procedure
      • Manipulating Dialog Items
• Direct Manipulation
  • About Direct Manipulation
    • Application-Defined Drag Operations
    • Rendering Mechanism and Format
      • Non-Standard Rendering Mechanisms
    • Responsibilities of a Source Application
    • Responsibilites of a Target Application
      • Messages Sent to a Target Application
      • Response to Messages Sent to a Target Application
    • Two-Object Drag Operation
    • Conversation after the Drop
    • Canceling a Drag Operation
    • About Pickup and Drop
      • Data Structure Handling
      • Message Handling
  • About Rendering Mechanisms
    • OS/2 File Rendering Mechanism
      • Mechanism Name
      • Messages
      • Native Mechanism Actions
      • Preventing a Target from Rendering an Item
      • Requesting the Source to Render the Item
      • Allocating and Freeing a DRAGTRANSFER Data Structure
      • Operation Specifics
      • Non-Native Mechanism Actions
      • Naming Conventions
      • Types
    • Print Rendering Mechanism
      • Mechanism Name
      • Messages
      • Native Mechanism Actions
      • Naming Conventions
    • Dynamic Data Exchange (DDE) Rendering Mechanism
      • Mechanism Name
      • Messages
      • Native Mechanism Actions
      • Operation Specifics
      • Non-Native Mechanism Actions
      • Naming Conventions
      • Types
    • Application-Defined Rendering Mechanisms
      • Mechanism Name
      • Native Mechanism Actions
      • Naming Conventions
      • Performance Considerations
  • Using Direct Manipulation
    • Allocating Memory for the Drag Operation
    • Initializing DRAGITEM Data Structure
      • Type
      • True Type
      • Rendering Mechanism and Format
      • Native Rendering Mechanism and Format
      • Suggested Name at Target
      • Container Name
      • Source Name
      • Sample Code for Initializing DRAGITEM Data Structure
    • Initializing DRAGIMAGE Data Structure
    • Starting the Drag Operation
    • Responding to the DM_DRAGOVER Message
      • Providing Target Emphasis
      • Providing Customized Images
    • Responding to the DM_DRAGLEAVE Message
    • Responding to the DM_DROP Message
    • Exchanging Data
      • Performance Considerations
    • Using Pickup and Drop
  • Graphical User Interface Support for Direct Manipulation
    • Keyboard Augmentation
  • Sample Code for Direct Manipulation
    • Source Application Sample Code
    • Target Application Sample Code
• Drawing in Windows
  • About Window-Drawing Functions
    • Points
    • Rectangles
  • Using Window-Drawing Functions
    • Working with Points and Rectangles
      • Determining the Dimensions of a Rectangle
      • Filling a Rectangle
    • Scrolling the Contents of a Window
    • Drawing a Bit Map
    • Drawing Text
• Dynamic Data Exchange
  • About Dynamic Data Exchange
    • Client and Server Interaction
    • DDE System Example
    • Applications, Topics, and Items
    • The System Topic
    • DDE Initiation
    • Shared-Memory Object
    • Transaction Status Flags
    • Transaction and Response Messages
      • Request and Poke Transactions
      • Advise and Unadvise Transactions
      • Execute Transaction
    • DDE Termination
    • Unique Data Formats
    • Synchronization Rules
    • Language-Sensitive DDE Applications
  • Using Dynamic Data Exchange
    • Initiating a DDE Conversation
    • Creating a Shared-Memory Object for DDE
    • Sending a Positive Acknowledgment
    • Sending a Negative Acknowledgment
    • Performing a One-Time Data Transfer
    • Establishing a Permanent Data Link
    • Terminating a Permanant Link
    • Executing Commands in a Remote Application
    • Terminating a DDE Conversation
  • Sample Code for Dynamic Data Exchange
    • Client Application Sample Code
    • Server Application Sample Code
• Entry-Field Controls
  • About Entry Fields
    • Entry-Field Styles
    • Entry-Field Notification Codes
    • Default Entry-Field Behavior
    • Entry-Field Text Editing
    • Entry-Field Control Copy and Paste Operations
    • Entry-Field Text Retrieval
  • Using Entry-Field Controls
    • Creating an Entry Field in a Dialog Window
    • Creating an Entry Field in a Client Window
    • Changing the Default Size of an Entry Field
    • Retrieving Text From an Entry Field
• File Dialog Controls
  • About File Dialog Controls
    • Customizing the File Dialog
  • Using File Dialog Controls
    • Creating a File Dialog
    • Creating an Open Dialog
    • Creating a SaveAs Dialog
  • Graphical User Interface Support for File Dialog Controls
    • Name Field
    • File List Box
    • Directory List Box
    • Drive Field
    • Type Field
    • Standard Push Button and Default Action
    • Subclassing the Default File Dialog Procedure
• Font Dialog Controls
  • About Font Dialog Controls
    • Customizing the Font Dialog
  • Using Font Dialog Controls
    • Creating a Font Dialog
  • Graphical User Interface Support for Font Dialog Controls
    • Name Field
    • Style Field
    • Size Field
    • Emphasis Group Box
    • Preview Area
    • Filter Check Box
    • Standard Push Button and Default Action
    • Subclassing the Default Font Dialog Procedure
• Frame Windows
  • About Frame Windows
    • Main Window
      • Frame Controls
      • Client Window
      • Additional Frame-Window Items
      • Frame-Control Identifiers
    • Frame-Window Creation
      • Frame Window Controls and Styles
      • Frame-Window Resources
    • Frame-Window Class Data
    • Frame-Window Data
    • Frame-Window Operation
    • Nonstandard Frame Windows
    • Default Frame-Window Behavior
  • Using Frame Windows
    • Creating a Main Window
    • Retrieving a Frame Handle
• Hooks
  • About Hooks
    • Hook Lists
    • Hook Chains
    • Hook Types
      • HK_CHECKMSGFILTER - Check Message Filter Hook
      • HK_CODEPAGECHANGE - Code Page Changed Hook
      • HK_DESTROYWINDOW - Destroy Window Hook
      • HK_FINDWORD - Find Word Hook
      • HK_FLUSHBUF - Flush Buffer Hook
      • HK_HELP - Help Hook
      • HK_INPUT - Input Hook
      • HK_JOURNALPLAYBACK - Journal Playback Hook
      • HK_JOURNALRECORD - Journal Record Hook
      • HK_LOADER - Loader Hook
      • HK_LOCKUP - Lockup Hook
      • HK_MSGCONTROL - Message Control Hook
      • HK_MSGFILTER - Message Filter Hook
      • HK_MSGINPUT - Message Input Hook
      • HK_PLIST_ENTRY - Program List Call Hook
      • HK_PLIST_EXIT - Program List Exit Hook
      • HK_REGISTERUSERMSG - Register User Message Hook
      • HK_SENDMSG - Send Message Hook
      • HK_WINDOWDC - Device Context Hook
  • Using Hooks
    • Installing Hook Functions
    • Releasing Hook Functions
      • Freeing Memory
    • Recording and Playing Back Input Events
  • Sample Code for Hooks
    • Hooks Application Sample Code
• Initialization Files
  • About Initialization Files
  • Using Initialization Files
    • Creating, Opening, and Closing Initialization Files
    • Reading and Writing Settings
    • Identifying the OS/2 Initialization Files
• Keyboard Accelerators
  • About Keyboard Accelerators
    • Accelerator Tables
    • Accelerator-Table Resources
    • Accelerator-Table Handles
    • Accelerator-Table Data Structures
    • Accelerator-Item Styles
  • Using Keyboard Accelerators
    • Creating an Accelerator-Table Resource
    • Including an Accelerator Table in a Frame Window
    • Modifying an Accelerator Table
• List-Box Controls
  • About List Boxes
  • Using List Boxes
    • Creating a List-Box Window
    • Using a List Box in a Dialog Window
    • Adding or Deleting an Item in a List Box
    • Responding to a User Selection in a List Box
    • Handling Multiple Selections
    • Creating an Owner-Drawn List Item
    • Default List-Box Behavior
• Menus
  • About Menus
    • Menu Bar and Pull-Down Menus
    • Pop-Up Menus
    • System Menu
    • Menu Items
      • The Help Item
      • Menu-Item Styles
      • Menu-Item Attributes
      • Menu-Item Structure
    • Menu Access
      • Mnemonics
      • Accelerators
  • Using Menus
    • Defining Menu Items in a Resource File
    • Including a Menu Bar in a Standard Window
    • Creating a Pop-up Menu
    • Adding a Menu to a Dialog Window
    • Accessing the System Menu
    • Responding to a User's Menu Choice
    • Setting and Querying Menu-Item Attributes
    • Adding and Deleting Menu Items
    • Creating a Custom Menu Item
• Messages and Message Queues
  • About Messages and Message Queues
    • Messages
    • Message Queues
    • Message Handling
      • Message Loops
      • Window Procedures
    • Posting and Sending Messages
    • Message Types
      • System-Defined Messages
      • Application-Defined Messages
      • Semaphore Messages
    • Message Priorities
    • Message Filtering
  • Using Messages
    • Creating a Message Queue and Message Loop
    • Examining the Message Queue
    • Posting a Message to a Window
    • Sending a Message to a Window
    • Broadcasting a Message
    • Using Message Macros
• Multiple-Line Entry Field Controls
  • About Multiple-Line Entry Field Controls
    • MLE Styles
    • MLE Notification Codes
    • MLE Text Editing
    • MLE Text Formatting
    • MLE Text Import and Export Operations
    • MLE Cut, Copy, and Paste Operations
    • MLE Search and Replace Operations
    • MLE Colors
  • Using Multiple-Line Entry Field Controls
    • Creating an MLE
    • Importing and Exporting MLE Text
      • Importing MLE Text
      • Exporting MLE Text
    • Searching MLE Text
• Mouse and Keyboard Input
  • About Mouse and Keyboard Input
    • System Message Queue
    • Window Activation
    • Keyboard Focus
    • Keyboard Messages
      • Message Flags
      • Key-Down or Key-Up Events
      • Repeat-Count Events
      • Character Codes
      • Virtual-Key Codes
      • Scan Codes
      • Accelerator-Table Entries
    • Mouse Messages
    • Capturing Mouse Input
      • Button Clicks
      • Mouse Movement
  • Using the Mouse and Keyboard
    • Determining the Active Status of a Frame Window
    • Checking for a Key-Up or Key-Down Event
    • Responding to a Character Message
    • Handling Virtual-Key Codes
    • Handling a Scan Code
• Mouse Pointers and Icons
  • About Mouse Pointers and Icons
    • Mouse-Pointer Hot Spot
    • Predefined Mouse Pointers
    • System Bit Maps
  • Using Mouse Pointers and Icons
    • Changing the Mouse Pointer