CheckBox

A checkbox is a labelled box which by default is either on (checkmark is visible) or off (no checkmark).

Optionally (when the CHK_3STATE style flag is set) it can have a third state, called the mixed or undetermined state. Often this is used as a “Does Not Apply” state.

Window Styles

This class supports the following styles:

• CHK_2STATE: Create a 2-state checkbox. This is the default.
• CHK_3STATE: Create a 3-state checkbox. Not implemented in OS2 and wxGTK built against GTK+ 1.2.
• CHK_ALLOW_3RD_STATE_FOR_USER: By default a user can’t set a 3-state checkbox to the third state. It can only be done from code. Using this flags allows the user to set the checkbox to the third state by clicking.
• ALIGN_RIGHT: Makes the text appear on the left of the checkbox.

Events Emitted by this Class

Handlers bound for the following event types will receive a CommandEvent parameter.

• EVT_CHECKBOX: Process a wxEVT_COMMAND_CHECKBOX_CLICKED event, when the checkbox is clicked.

See also

RadioButton, CommandEvent

Inheritance Diagram

Inheritance diagram for class CheckBox

Control Appearance

wxMSW

wxMAC

wxGTK

Methods Summary

__init__	Default constructor.
Create	Creates the checkbox for two-step construction.
Get3StateValue	Gets the state of a 3-state checkbox.
GetValue	Gets the state of a 2-state checkbox.
Is3State	Returns whether or not the checkbox is a 3-state checkbox.
Is3rdStateAllowedForUser	Returns whether or not the user can set the checkbox to the third state.
IsChecked	This is just a maybe more readable synonym for GetValue : just as the latter, it returns True if the checkbox is checked and False otherwise.
Set3StateValue	Sets the checkbox to the given state.
SetValue	Sets the checkbox to the given state.

Properties Summary

ThreeStateValue	See Get3StateValue and Set3StateValue
Value	See GetValue and SetValue

Class API

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class CheckBox(Control)

A checkbox is a labelled box which by default is either on (checkmark is visible) or off (no checkmark).

Possible constructors:

CheckBox()

CheckBox(parent, id=ID_ANY, label='', pos=DefaultPosition,
         size=DefaultSize, style=0, validator=DefaultValidator,
         name=CheckBoxNameStr)

Methods

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__init__(self, *args, **kw)

Overloaded Implementations:

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__init__ (self)

Default constructor.

See also

Create , Validator

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__init__ (self, parent, id=ID_ANY, label=’‘, pos=DefaultPosition, size=DefaultSize, style=0, validator=DefaultValidator, name=CheckBoxNameStr)

Constructor, creating and showing a checkbox.

Parameters:

• parent (Window) – Parent window. Must not be None.
• id (int) – Checkbox identifier. The value ID_ANY indicates a default value.
• label (string) – Text to be displayed next to the checkbox.
• pos (Point) – Checkbox position. If DefaultPosition is specified then a default position is chosen.
• size (Size) – Checkbox size. If DefaultSize is specified then a default size is chosen.
• style (long) – Window style. See CheckBox.
• validator (Validator) – Window validator.
• name (string) – Window name.

See also

Create , Validator

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Create(self, parent, id=ID_ANY, label='', pos=DefaultPosition, size=DefaultSize, style=0, validator=DefaultValidator, name=CheckBoxNameStr)

Creates the checkbox for two-step construction.

See CheckBox for details.

Parameters:

• parent (Window) –
• id (int) –
• label (string) –
• pos (Point) –
• size (Size) –
• style (long) –
• validator (Validator) –
• name (string) –

Return type:

bool

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Get3StateValue(self)

Gets the state of a 3-state checkbox.

Asserts when the function is used with a 2-state checkbox.

Return type: CheckBoxState

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GetValue(self)

Gets the state of a 2-state checkbox.

Return type:bool Returns:Returns True if it is checked, False otherwise.

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Is3State(self)

Returns whether or not the checkbox is a 3-state checkbox.

Return type:bool Returns:True if this checkbox is a 3-state checkbox, False if it’s a 2-state checkbox.

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Is3rdStateAllowedForUser(self)

Returns whether or not the user can set the checkbox to the third state.

Return type:bool Returns:True if the user can set the third state of this checkbox, False if it can only be set programmatically or if it’s a 2-state checkbox.

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IsChecked(self)

This is just a maybe more readable synonym for GetValue : just as the latter, it returns True if the checkbox is checked and False otherwise.

Return type:bool

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Set3StateValue(self, state)

Sets the checkbox to the given state.

This does not cause a wxEVT_COMMAND_CHECKBOX_CLICKED event to get emitted.

Asserts when the checkbox is a 2-state checkbox and setting the state to CHK_UNDETERMINED.

Parameters:state (CheckBoxState) –

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SetValue(self, state)

Sets the checkbox to the given state.

This does not cause a wxEVT_COMMAND_CHECKBOX_CLICKED event to get emitted.

Parameters:state (bool) – If True, the check is on, otherwise it is off.

Properties

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ThreeStateValue

See Get3StateValue and Set3StateValue

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Value

See GetValue and SetValue