Custom Scroll Bar
Custom Scroll Bar: the base type from which Control Bars are derived
Scroll Bar
Scroll Bar for Text Box or Memo. Can be none, horizontal, vertical or both. May appear automatically when the text goes outside the window.
Scroll codes may be line up or down, page up or down, track the mouse, top of panel, bottom of panel, or end scroll.
Custom Group Box
Custom Group Box: the base type from which Group Box and related components are derived.
Group Box
Group Box. Allows a number of objects to be grouped physically and conceptually on the form; they can be moved around together and have certain properties in common.
They share the same scope for several variables, which are hidden from objects outside the group.
They can interact with one another, for example radio buttons will be mutually exclusive within the group.
ComboBox Style
ComboBox Style: may be Simple, a Drop-Down or a drop-down list, or some version drawn by the Owner
Custom Combo Box
Custom Combination Box: the base class from which Combo Box is derived.
Combo Box
Combo box. A simple combination of text box for free text entry, and a drop-down list allowing one of several options to be chosen.
Custom List Box
Custom List Box: the base type from which List Box is derived.
List Box
List Box: a simple drop-down list from which a choice is made
Custom Edit
Custom Edit: the base type from which Edit Box is derived.
Max Length
Max Length: maximum length allowed for text string
Modified
Modified: has the text been modified since creation?
Password Character
Password Character: the character which appears in the Edit box replacing and masking the actual character typed. Typically used in password input, to prevent the typed characters from being seen by passers-by or casual observers (or even malicious observers!)
Sel Length
Sel Length: the length (in characters) of the text that has been selected for editing
Sel Start
Sel Start: the index of the character from which selection (for editing) begins
Sel Text
Sel Text: the text of the actual string that has been selected for editing
Text
Text: the character string contained in the Edit Box
Custom Memo
Custom Memo: the base type from which Memo is derived
Create
Create the Custom memo widget
Destroy
Destroy the CustomMemo widget when you have finished with it
Lines
Lines: an array of strings (representing single lines of characters) which contains the textual material held or being entered in the Memo.
Word Wrap
Word Wrap: a logical flag to show whether or not word-wrap is enabled, ie if a word nears the end of a line and is going to be too long for the line, it is wrapped down to the next line
Edit Box
Edit Box: for entry or display of a single line of text.
Inherits most of its properties from TCustomEdit
Action
Action: the task to be performed when the component is activated by a mouse movement or key press.
This should point to a user-defined procedure or function or an item on an action list.
Align
Align: Is used to align a Control component to a border of a parent control.
Anchors
Anchors: keep the edges of a control component a defined distance from certain borders of the parent control.
Constraints
Constraints: Sets the minimum and maximum sizes for a control.

If a control is resized the new dimensions are always within the ranges given here.

You should take care when setting these options that they do not conflict with the Anchors and Align settings.
Char Case
Character Case: the default character case (Upper or Lower case) to be used in the Edit Box. Can, of course, be over-ridden by use of the [shift] key.
Enabled
Enabled: flag to determine whether or not the control is able to be used
On Change - Action
On Change - Action to be taken when any of the properties of the control change (especially the textual content).
User-defined Procedure
On Change Bounds - Action
On Change Bounds - Action to be taken if any of the bounds of the control are changed.
User-defined Procedure.
On Click - Action
On Click - Action to be taken when the mouse button is clicked with the cursor over this control. User-defined Procedure
On Entry - Action
On Entry - Action to be taken when the mouse cursor or text cursor enters the bounds of this control. User-defined Procedure
On Exit - Action
On Exit - Action to be taken when the mouse or text cursor leaves this control or when focus is relinquished. User-defined Procedure
On Key Down - Action
On Key Down - Action to be taken if a key is down while focus is in this control. Subtly different from On Key Pressed - for example the key might already have been down when focus entered this control, whereas On Key Pressed requires the key to become pressed while focus is in the control.
User-defined Procedure
On Key Press - Action
On Key Press - Action to be taken if a key becomes pressed while focus is in this control. Subtly different from On Key Down, which simply responds to a key being down, whether or not it was already down when focus was given to this control. On Key Press requires that a key becomes pressed while focus in in this control.
User-defined Procedure
On Key Up - Action
On Key Up - Action to be taken if a key is up (ie not pressed) while focus is in this control.
User-defined Procedure
On Mouse Down - Action
On Mouse Down - Action to be taken if the mouse button is down while focus is in this control.
User-defined Procedure
On Mouse Move - Action
On Mouse Move - Action to be taken if the mouse cursor moves while focus is in this control.
User-defined Procedure
On Mouse Up - Action
On Mouse Up - Action to be taken if the mouse button is up (not pressed) while focus is in this control.
User -defined Procedure
On Resize - Action
On Resize - Action to be taken when the control is resized. Might include re-alignment of text or selection of a different font size etc.
User-defined Procedure
Password Character
Password Character - defines which character should appear in the edit box when a password is being typed.
A security feature to prevent casual onlookers fom seeing the password that is being entered.
Most often an asterisk * but could be any user-selected character.
Popup Menu
Popup Menu - a menu that appears when the right mouse button is clicked over this control
Read Only
Read Only - a flag that signifies that users can view the contents of this control but are not allowed to modify it.
Show Hint
Show Hint - allows a small box containing helpful text to be displayed while the mouse cursor 'hovers' over the control
Text
Text - the actual character string that represents the contents of the control. May be edited if ReadOnly property is not set
Visible
Visible - determines whether or not the control can be seen
Memo Box
Memo box: for entry or display of multiple lines of text.
Inherits most of its properties from TCustomMemo
Lines
Lines: an array of strings (representing single lines of characters) which contains the textual material held or being entered in the Memo.
Max Length
Max Length: the maximum permitted length for the textual material in the memo
Word Wrap
Word Wrap: a logical flag to show whether or not word-wrap is enabled, ie if a word nears the end of a line and is going to be too long for the line, it is wrapped down to the next line
Custom Label
Custom label: the base type from which Label is derived.
Label
Label: a brief text label to be placed in the Form near any object that needs to be identified.
Can also be used for displaying text messages, eg
...
Label.Caption := 'Please select one of these options';
...

or the message may be changed dynamically, eg

var Lies: boolean;
...
if (Lies=true) then Label.caption := 'Lies are true'
else Label.caption := 'Lies are false';
...
Align
Align: Is used to align a Control component to a border of a parent control.
Anchors
Anchors: keep the edges of a control component a defined distance from certain borders of the parent control.
Caption
Caption - the text string that represents the contents of the label
Constraints
Constraints: Sets the minimum and maximum sizes for a control.

If a control is resized the new dimensions are always within the ranges given here.

You should take care when setting these options that they do not conflict with the Anchors and Align settings.
On Change Bounds
On Change Bounds - Action to be taken if any of the bounds of the control are changed.
User-defined Procedure.
On Click
On Click - Action to be taken when the mouse button is clicked with the cursor over this control. User-defined Procedure
On Double-click
On Double-click - Action to be taken when the mouse button is double-clicked with the cursor over this control.
User-defined Procedure
On Mouse Down - Action
On Mouse Down - Action to be taken if the mouse button is down while focus is in this control.
User-defined Procedure
On Mouse Entry
On Mouse Entry - Action to be taken when the mouse cursor enters the bounds of this control. User-defined Procedure
On Mouse Leaving
On Mouse Leaving - Action to be taken when the mouse cursor leaves the boundaries of this control. User-defined Procedure.
On Mouse Movement - Action
On Mouse Movement - Action to be taken if the mouse cursor moves while within the bounds of this control. User-defined Procedure
On Mouse Up
On Mouse Up - Action to be taken if the mouse button is up while the cursor is over this control.
Implies that the mouse button was previously down and has been released. The case where the cursor enters the control but the mouse button has not yet been pressed is covered by OnMouseEnter.
User-defined Procedure
On Resize - Action
On Resize - Action to be taken when the control is resized. Might include re-alignment of text or selection of a different font size etc. User-defined Procedure
Visible
Visible - determines whether or not the control can be seen
Word Wrap
Word Wrap: a logical flag to show whether or not word-wrap is enabled, ie if a word is near the end of a line and is going to be too long for the line, it is wrapped down to the next line
Button Control
Button Control: Base Type for the Button (including Radio Button) and Check Box types ;

processes the detection of clicks and changes, and the checked/unchecked state of the component.

A rectangular button, whose shape can be specified, and which usually has an informative caption.
It is designed to be pressed or selected by the mouse cursor, and usually initiates some activity with the OnClick Event.

Properties can include [Checked], [Click] (mouse clicks on button) and the actions to be taken on a change in a property.
Typically, clicking on the box will cause the box to be checked (or unchecked if it is already checked) as well as initiating any other action associated with the box.
The programmer is responsible for ensuring that the appropriate actions and changes in checked status are performed.
Check Box State
Check Box State: a set of constants defining the possible states of a Check Box -

Checked, meaning it has been selected;

Unchecked meaning irt has not been selected or has been deselected;

Grayed meaning it has been rendered inoperative or unable to be selected and appears grey or faintly visible on the Form
The check box has no check mark, indicating that the user has not selected the option.
The check box has a check mark in it, indicating that the user has selected the option.
The check box has a check mark in it, but it is grayed.
TCustomCheckBox is the ancestor of all check-box components.
Custom Check Box: The base (abstract) class from which the TCheckBox is derived. Check boxes present the user with options that can be selected (checked) or deselected (unchecked).
Determines whether the check box can be in a "grayed" state.
If AllowGrayed is set to True, the check box has three possible states: checked, unchecked and grayed. If AllowGrayed is set to False, the check box has only two possible states: checked and unchecked.
Indicates whether the check box is selected, deselected or grayed.
See TCheckBoxState for possible values of State.
Determines if the user can tab to a control.
Use the TabStop to allow or disallow access to the control using the Tab key.

If the TabStop is True, the control is in the tab order. If TabStop is False, the control is not in the tab order and the user can't press the Tab key to move to the control.
Check Box
Check Box: a small box which can contain a check mark to indicate that it has been selected by a mouse click. May be associated with a Caption that describes its function.
Toggles between being checked and unchecked on successive clicks of the mouse, and usually initiates some action associated with OnChecked.
Action
Action: the task to be performed when the component is activated by a mouse movement or key press.
This should point to a user-defined procedure or function or an item on an action list.
Align
Align: Is used to align a Control component to a border of a parent control.
Allow Grayed
Allow Grayed: a flag to show whether the box is allowed to be Greyed out,
ie it is still visible, but appears faint and cannot be selected or activated with the mouse cursor or keyboard
Anchors
Anchors: keep the edges of a control component a defined distance from certain borders of the parent control.
Caption
Caption: a brief description appearing near the check box, usually stating the function of the box or what action will be taken if it becomes checked.
Checked
Checked - shows whether or not the box has been checked (ie selected)
Constraints
Constraints: Sets the minimum and maximum sizes for a control.
If a control is resized the new dimensions are always within the ranges given here.
You should take care when setting these options that they do not conflict with the Anchors and Align settings.
Enabled
Enabled: flag to determine whether or not the control is able to be used
Hint
Hint: a short piece of pop-up text that appears if the mouse-cursor hovers over the check box;
it should give further details of the function of the box
On Change
On Change - Action to be taken when any of the properties of the control change.
User-defined Procedure
On Change Bounds
On Change Bounds - Action to be taken if any of the bounds of the control are changed.
User-defined Procedure.
On Click - Action
On Click - Action to be taken when the mouse button is clicked with the cursor over this control.
User-defined Procedure
On Entry - Action
On Entry - Action to be taken when the mouse cursor or text cursor enters the bounds of this control. User-defined Procedure
On Exit - Action to be taken when the mouse or text cursor leaves this control or when focus is relinquished.
User-defined Procedure
On Mouse Down - Action
On Mouse Down - Action to be taken if the mouse button is down while focus is in this control.
User-defined Procedure
On Mouse Move - Action
On Mouse Move - Action to be taken if the mouse cursor moves while focus is in this control.
User-defined Procedure
On Mouse Up - Action
On Mouse Up - Action to be taken if the mouse button is up (not pressed) while focus is in this control.
User -defined Procedure
On Resize - Action
On Resize - Action to be taken when the control is resized. Might include selection of a different font size etc.
User-defined Procedure
Popup Menu
Popup Menu - a menu that appears when the right mouse button is clicked over this control
Show Hint
Show Hint: a flag to show whether or not the hint is to be shown when the mouse cursor hovers over the box.
Visible
Visible - determines whether or not the control can be seen
Toggle Box
Toggle Box: a labelled box capable of being checked (when it becomes recessed) or unchecked (when it is raised).
The 'state' property can be tested for cbUnchecked or cbChecked and actions can be associated with mouse clicks or other movements
Radio Button
Radio Button: a button which works in conjunction with other Radio Buttons in a mutually exclusive manner - if one button of a group is selected, none of the others in that group can be selected.
Several radio buttons are usually grouped together in a Group Box or Radio Group. When a button is selected, the actions associated with that button are initiated.
Custom Static Text
Custom Static Text: the base type from which Static Text is derived.
Static Text
Static Text: a box to display a Constant Text String
Align
Align: Is used to align a Static Text box to a border of a parent control.
Anchors
Anchors: keep the edges of a static text box a defined distance from certain borders of the parent control.
Caption
Caption: the text that actually appears with the Static Text Box
Constraints
Constraints: Sets the minimum and maximum sizes for a control.
If a control is resized the new dimensions are always within the ranges given here.
You should take care when setting these options that they do not conflict with the Anchors and Align settings.
Enabled
Enabled: flag to determine whether or not the control is able to be used
Popup Menu
Popup Menu - a menu that appears when the right mouse button is clicked over this control
Show Hint
Show Hint - allows a small box containing helpful text to be displayed while the mouse cursor 'hovers' over the control
Visible
Visible - determines whether or not the control can be seen
On Click - Action
On Click - Action to be taken when the mouse button is clicked with the cursor over this control. User-defined Procedure
On Double-click - Action
On Double-click - Action to be taken when the mouse button is double-clicked while the cursor is over the control. User-defined Procedure
On Mouse Down - Action
On Mouse Down - Action to be taken when the mouse button is down while the cursor is over this control. User-defined Procedure
On Mouse Movement - Action
On Mouse Movement - Action to be taken if the mouse cursor moves within the bounds of this control. User-defined Procedure
On Mouse Up - Action
On Mouse Up - Action to be taken if the mouse button is up while the cursor is over this control.
Implies that the mouse button was previously down and has been released. The case where the cursor enters the control but the mouse button has not yet been pressed is covered by OnMouseEnter.
User-defined Procedure
On Mouse Entry - Action
On Mouse Entry - Action to be taken when the mouse cursor enters the bounds of this control. User-defined Procedure
On Mouse Leaving - Action
On Mouse Leaving - Action to be taken when the mouse cursor leaves the boundaries of this control. User-defined Procedure.
On Resize - Action
On Resize - Action to be taken when the control is resized. Might include re-alignment of text or selection of a different font size etc. User-defined Procedure