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.