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ComboBox (gb.qt4)

Implements a text box combined with a popup list box.

(The picture shows two comboboxes, the second being read-only).

This class inherits UserControl.

This class is creatable.

This class acts like a read-only array.

Properties
Background   Returns or sets the background color used by the control.
Border   Returns or sets if the control has a border.
ClearButton   Return or set if an editable ComboBox displays a clear button.
Count   Returns the number of elements in the popup list box.
Current   Returns the current selected item of the popup list box.
Index   Returns or sets the index of the current selected item of the popup list box.
Length   Returns the length of the text in the text box.
List   Returns or sets the popup list box contents from a string array.
MaxLength   Returns or sets the maximum permitted length of the text in the text box.
Opened   Return if the combo box popup is opened.
Password   Indicates if characters typed in the text box should be hidden and replaced by stars.
Placeholder   Return or set the placeholder text, i.e. the text displayed when the Text property is void.
Pos   Returns or sets the position of the cursor in the text box.
ReadOnly   Indicates if the combo-box is read-only, i.e. if its text box is editable or not.
Selected   Returns if some text is selected in the ComboBox.
Selection   Returns an object used for managing the selected text.
Sorted   Indicates if the popup list-box elements are sorted or not.
Text   Returns or sets the text of the text box.

Inherited properties
Action   Returns or sets the action string associated with the control.
Children   Returns a collection of each control included in the container.
ClientH   A synonymous for the ClientHeight property.
ClientHeight   Returns the height of the area containing the controls.
ClientW   A synonymous for the ClientWidth property.
ClientWidth   Returns the width of the area containing the controls.
ClientX   Returns the position of the left border of the area containing the controls.
ClientY   Returns the position of the top border of the area containing the controls.
Cursor   Use this property for assigning a custom cursor to a control.
Design   Indicates that the control is in design mode.
Direction   Return or set the control text direction.
Drop   Returns or sets if a control accepts drops.
Enabled   Indicates that the control is enabled.
Expand   Returns or sets if a control will expand if included in a container that arranges its contents.
Font   Returns or sets the font used to draw text in the control.
Foreground   Returns or sets the foreground color used by the control.
H   A synonymous for the Height property.
Handle   Returns the internal X11 window handle of the control.
HasFocus   Returns whether the control has the focus.
Height   Returns or sets the height of the control.
Hovered   Returns whether the mouse cursor is inside the control.
Id   A synonymous for the Handle property.
Ignore   Returns or sets if a control must be ignored when its parent arranges its children.
Left   Returns or sets the position of the left border of the control relative to its parent.
Mouse   Returns or sets the appearence of the cursor when it points inside the control.
Name   Returns or sets the name of the control.
Next   Returns the next control having the same parent.
NoTabFocus   Return or set if a control cannot be focused with the TAB key.
Parent   Returns the control container.
PopupMenu   Return or set the name of the menu that will be popped-up when the user presses the right mouse button or the keyboard MENU key.
Previous   Returns the previous control having the same parent.
Proxy   Return or set the "proxy" of a control.
ProxyFor   Return which control that control is a proxy for.
RightToLeft   Return if the control is right to left oriented.
ScreenX   Returns the position of the left border of the control in screen coordinates.
ScreenY   Returns the position of the top border of the control in screen coordinates.
Tag   Returns or sets the control tag.
Tooltip   Returns or sets the tooltip shown when the mouse stays on the control for a short time.
Top   Returns or sets the position of the top border of the control relative to its parent.
Tracking   Returns or sets if the control will receive MouseMove events.
Visible   Indicates if the control is visible or not.
W   A synonymous for the Width property.
Width   Returns or sets the width of the control.
Window   Returns the top-level window that contains the control.
X   Returns or sets the position of the left border of the control relative to its parent.
Y   Returns or sets the position of the top border of the control relative to its parent.

Methods
Add   Inserts an element in the popup list box.
Clear   Clears the combo box.
Close   Close the popup of the combo box if it is opened.
CursorAt   Returns the cursor screen position from a text position.
Find   Finds an element in the poup list box and returns its index, or -1 if the element cannot be found.
Insert   Inserts a string in the text box.
Popup   Opens the ComboBox popup menu.
Remove   Removes a element from the popup list box.
Select   Define the selected text.
SelectAll  
Unselect   Unselects the selected text of the ComboBox.

Inherited methods
Delete   Destroys the control.
Drag   Starts a drag & drop process.
FindChild   Finds the first child control pointed by the X and Y coordinates.
Grab   Grab the keyboard and the mouse so that all keyboard and mouse events are received by the control.
Hide   Hides the control.
Lower   Sends the control to the background of its parent.
Move   Moves and/or resizes the control.
MoveScaled   Moves and/or resizes the control.
Raise   Sends the control to the foreground of its parent.
Refresh   Trigger a redraw of the control.
Reparent   Changes the container of a control.
Resize   Resizes the control.
ResizeScaled   Resizes the control.
SetFocus   Gives the focus to the control.
Show   Shows the control.

Events
Activate   Raised when the RETURN key is hit in the text box.
Change   Raised when the text in the combo box is modified.
Click   Raised when an element is selected in the popup list box.
Cursor   This event is raised when the cursor of the editable combo box has moved.

Inherited events
Arrange   This event is raised when a container has just finished arranging its contents.
BeforeArrange   This event is raised just before a container arranges its contents.
DblClick   Raised when the user quickly clicks twice on the control.
Drag   This event is raised when the mouse enters the control during a drag & drop process.
DragLeave   This event is raised when the mouse leaves the control during a drag & drop operation.
DragMove   This event is raised while the mouse moves inside the control during a drag & drop process.
Drop   This event is raised when a drag is dropped in the control.
Enter   Raised when the mouse enters the control.
GotFocus   Raised when the control has got the focus.
KeyPress   Raised when a key is pressed while the control has the focus.
KeyRelease   Raised when a key is released while the control has the focus.
Leave   Raised when the mouse leaves the control.
LostFocus   Raised when the control has lost the focus.
Menu   Raised when the user clicks on the control with the right mouse button, or if it hits the MENU key.
MouseDown   Raised when a mouse button is pressed while the cursor is inside the control.
MouseDrag   This event is raised when a drag operation should be started.
MouseMove   Raised when the mouse moves inside the control while a mouse button is pressed.
MouseUp   Raised when a mouse button is depressed while the cursor is inside the control.
MouseWheel   This event is raised when the user moves or presses the mouse wheel while the mouse is inside the control.
NewChild   This event is raised when a new child Control has just been inserted into the container.