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Controls · Visual control
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Label

Present a caption or status without inviting the user to edit it.

39 properties12 events0 methods

Use it in a Form#

The name belongs in txtName.Text; the result belongs in lblGreeting.Caption. A Click handler is the bridge between them. Trimming before testing length rejects whitespace-only input. The details window has its own public DisplayName field: set that value before calling Show so its Shown handler can render it.

Add Label to its intended parent and name it lblGreeting for this example:

PropertyExample value
Caption"Enter your name and click Greet."

Use the full lesson for the owner’s initialization code and its complete layout.

Properties#

Contract defaults are shown below. Where a new control has a different Designer starting value, that value is listed separately.

Left

DoubleDefault: 0

Horizontal position in device-independent points, relative to the parent container.

Range: -100000 to 100000.

Top

DoubleDefault: 0

Vertical position in device-independent points, relative to the parent container.

Range: -100000 to 100000.

Width

DoubleDefault: 120

Control width in device-independent points.

Range: 0 to 100000.

Designer starting value: 180.

Height

DoubleDefault: 32

Control height in device-independent points.

Range: 0 to 100000.

MinWidth

DoubleDefault: 0

Minimum control width in device-independent points; 0 lets the parent layout choose.

Range: 0 to 100000.

MinHeight

DoubleDefault: 0

Minimum control height in device-independent points; 0 lets the parent layout choose.

Range: 0 to 100000.

MaxWidth

DoubleDefault: 100000

Maximum control width in device-independent points.

Range: 0 to 100000.

MaxHeight

DoubleDefault: 100000

Maximum control height in device-independent points.

Range: 0 to 100000.

TabIndex

LongDefault: 0

Keyboard navigation order within the parent container; lower values come first.

Range: 0 to 100000.

ZIndex

LongDefault: 0

Stacking order among sibling controls; larger values appear in front. Equal values preserve document order.

Range: -100000 to 100000.

Anchor

StringDefault: "Left,Top"Not in InspectorNot serialized

Edges kept at their authored distance when the parent resizes. Use a comma-separated combination of Left, Top, Right and Bottom; Dock overrides the effective anchor without deleting it.

Dock

StringDefault: "None"

Automatic placement within the parent: None, Left, Top, Right, Bottom or Fill. Dock overrides effective Anchor layout without deleting the stored anchors.

Visible

BooleanDefault: True

Whether the control is shown in the running application.

Enabled

BooleanDefault: True

Whether the control accepts user interaction in the running application.

HitTestVisible

BooleanDefault: True

Whether the running control participates in pointer hit testing. The control remains selectable in the Designer.

AllowDrop

BooleanDefault: False

Whether this running control accepts application drag-and-drop operations; Designer movement is separate.

DragMode

LongDefault: 0

VB control drag: 0 Manual (code starts a drag with the Drag method) or 1 Automatic (a left-button press starts a drag, and the control raises no Click, MouseDown or MouseUp for that press).

Range: 0 to 1.

DragIcon

StringDefault: ""

Case-insensitive name of a declared project image resource shown under the pointer while this control is dragged; empty shows a grey outline of the control.

Caption

StringDefault: ""

Text displayed by the control.

Designer starting value: "Label".

WordWrap

BooleanDefault: False

Wraps the caption within the Label width; false keeps a single line.

TextTrimming

StringDefault: "None"

Overflow behavior for an unwrapped caption: None, CharacterEllipsis or WordEllipsis.

TextAlignment

StringDefault: "Left"

Horizontal caption alignment: Left, Center or Right.

Font

StringDefault: ""

Font as Family|Size or Family|Size|Regular/Bold|Normal/Italic, size 6–96 DIP. Empty uses the theme font; System uses the theme family.

ForeColor

StringDefault: ""

Text color as #RRGGBB. Empty uses the current macOS theme color.

BackColor

StringDefault: ""

Background color as #RRGGBB. Empty uses the current macOS theme color.

Margin

StringDefault: "0"

External spacing as one non-negative DIP value or Left,Top,Right,Bottom.

Cursor

StringDefault: "Default"

Pointer shown over the control: Default, Arrow, Hand, IBeam, Cross, Wait, Help, SizeAll, SizeNS, SizeWE, SizeNWSE, SizeNESW or NotAllowed.

Opacity

DoubleDefault: 1

Visual opacity from 0 (transparent) to 1 (opaque).

Range: 0 to 1.

DesignLocked

BooleanDefault: FalseDesigner only

Prevents movement and resizing in the Designer without changing runtime interaction.

AccessibleDescription

StringDefault: ""

Additional help text announced by assistive technology.

AutomationId

StringDefault: ""

Stable automation identifier; empty uses the component Name.

Alignment

StringDefault: "Left"

Canonical horizontal caption alignment: Left, Center or Right. TextAlignment remains a compatibility alias.

AccessibleName

StringDefault: ""

Name announced by assistive technology. Empty uses the stable control Name.

AccessibleRole

StringDefault: "Auto"

Accessibility role override. Auto preserves the native semantic role; explicit values use the corresponding platform automation role.

ToolTipText

StringDefault: ""

Help text shown when the pointer rests over the running control; empty disables the tooltip.

Tag

StringDefault: ""

Application-defined text associated with this control; McBasic™ does not interpret it.

AutoSize

BooleanDefault: False

At run time, sizes the Label to its Caption whenever the Caption, Font or WordWrap changes. With WordWrap the width is kept and the height grows. The designer keeps the authored frame.

BorderStyle

StringDefault: "None"

None or Solid (a thin gray frame). VB6 FixedSingle is Solid.

Index

LongDefault: -1Read only in BASICDesigner Index row

Position of this control in its control array, 0 to 32767. Several controls share one name only when every one of them has an Index. Absent from the layout, and -1 in code, when the control is not in an array.

Designer values: 0 to 32767. Clear the dedicated Index row for a non-array control; BASIC then reads -1.

Events and parameters#

Replace control with the object’s Name when creating a handler. ByRef arguments may be changed by your handler; ByVal arguments report an input value.

Click

Occurs when the user presses and releases the left mouse button inside the control.

Signature — see the complete lesson for an implementation
Private Sub control_Click()

No parameters.

DragEnter

Occurs when runtime drag data enters this control; set Effect to Copy, Move, Link or None.

Signature — see the complete lesson for an implementation
Private Sub control_DragEnter(ByVal Data As DragData, ByRef Effect As DragEffect, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
DataDragDataByVal
EffectDragEffectByRef
XDoubleByVal
YDoubleByVal

DragOver

Occurs while runtime drag data moves over this control; Effect may be updated for the current position.

Signature — see the complete lesson for an implementation
Private Sub control_DragOver(ByVal Data As DragData, ByRef Effect As DragEffect, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
DataDragDataByVal
EffectDragEffectByRef
XDoubleByVal
YDoubleByVal

DragOver

Occurs while a control dragged inside the app (DragMode or the Drag method) moves over this control: State is 0 when it enters, 2 while it moves over and 1 when it leaves; Source is the dragged control and X, Y are local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_DragOver(ByVal Source As Control, ByVal X As Single, ByVal Y As Single, ByVal State As Integer)
ParameterTypeDirection
SourceControlByVal
XSingleByVal
YSingleByVal
StateIntegerByVal

DragLeave

Occurs when runtime drag data leaves this control without a drop.

Signature — see the complete lesson for an implementation
Private Sub control_DragLeave()

No parameters.

Drop

Occurs when runtime drag data is dropped on this control with a stable McBasic™ effect and local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_Drop(ByVal Data As DragData, ByVal Effect As DragEffect, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
DataDragDataByVal
EffectDragEffectByVal
XDoubleByVal
YDoubleByVal

DragDrop

Occurs when a control dragged inside the app (DragMode or the Drag method) is released over this control; Source is the dragged control and X, Y are local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_DragDrop(ByVal Source As Control, ByVal X As Single, ByVal Y As Single)
ParameterTypeDirection
SourceControlByVal
XSingleByVal
YSingleByVal

MouseDown

Occurs when a pointing-device button is pressed over this control; Button is stable McBasic™ identity and X/Y are control-local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_MouseDown(ByVal Button As MouseButton, ByVal Shift As KeyModifiers, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
ButtonMouseButtonByVal
ShiftKeyModifiersByVal
XDoubleByVal
YDoubleByVal

MouseUp

Occurs when a pointing-device button is released for this control; Button is stable McBasic™ identity and X/Y are control-local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_MouseUp(ByVal Button As MouseButton, ByVal Shift As KeyModifiers, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
ButtonMouseButtonByVal
ShiftKeyModifiersByVal
XDoubleByVal
YDoubleByVal

MouseMove

Occurs when the pointer moves over the logical McBasic™ control; Button contains the currently held buttons and X/Y are local DIP coordinates.

Signature — see the complete lesson for an implementation
Private Sub control_MouseMove(ByVal Button As MouseButtons, ByVal Shift As KeyModifiers, ByVal X As Double, ByVal Y As Double)
ParameterTypeDirection
ButtonMouseButtonsByVal
ShiftKeyModifiersByVal
XDoubleByVal
YDoubleByVal

MouseEnter

Occurs once when the pointer enters the effective bounds of the logical McBasic™ control.

Signature — see the complete lesson for an implementation
Private Sub control_MouseEnter()

No parameters.

MouseLeave

Occurs once when the pointer leaves the effective bounds of the logical McBasic™ control.

Signature — see the complete lesson for an implementation
Private Sub control_MouseLeave()

No parameters.

DoubleClick

Occurs when native system timing recognizes a primary-button double activation on the same logical McBasic™ control.

Signature — see the complete lesson for an implementation
Private Sub control_DoubleClick()

No parameters.

Methods#

No methods are declared in this component’s built-in metadata. Use its documented properties and events; do not infer APIs from a similarly named control in another framework.

Source baseline 20f4bfed6b · Build manifest