The alignment property specifies that the text, icon, or bitmap can be aligned either left, right, or centered. On some platforms, the alignment for push buttons, toggle buttons, and cascade buttons cannot be set and is ignored. The possible values are as follows:

Left alignment

Right alignment

Center alignment

The backgroundColor property is the name of the RGB color for the background of the part.

The borderWidth property is the width of the border, specified in pixels, that surrounds the part on all four sides. A width of zero means that a border does not show.

On some platforms, the border width is limited to 1 pixel and any nonzero value is set to 1.

The converter property is an object that manages the conversion of other objects to and from their display format for certain visual parts, such as a Text part.

The disabledGraphicsDescriptor property is an icon, bitmap, or image used to indicate that the part is disabled. The labelType property must be an icon, bitmap, or image or the disabledGraphicsDescriptor property is ignored.

For more information on the dragDropSpec attribute, refer to Using the dragDropSpec attribute

The enabled property specifies whether or not the part is available for selection. If true, the part's contents are available for selection.

The fontName property is the name of the font to use for the text displayed in the part.

The foregroundColor property is the name of the RGB color for the foreground of the part.

The framingSpec property represents the values specified for the edge specifications of the part. The edge specifications determine the width, height, and position of the part.

The graphicsDescriptor property is an icon, bitmap, or image that is used instead of text for the label. The labelType property must be XmPIXMAP or the graphicsDescriptor property is ignored.

The helpFile property is the name of the help file associated with the part.

The helpKeysId property is the ID of the keys help associated with the part. The ID can be a string or an integer value.

The ID must exist in the help file associated with the part.

The helpTitle property is the title of the help window associated with the part.

The helpTopicId property is the ID of the help topic associated with the part. The ID can be a string or an integer value.

The ID must exist in the help file associated with the part.

The labelMarginBottom property is the amount of space between the label and the bottom margin.

The labelMarginHeight property is the amount of space between the label and the bottom edge of the top shadow and the top edge of the bottom shadow.

The labelMarginLeft property is the amount of space between the label and the left margin.

The labelMarginRight property is the amount of space between the right margin and the label of the part.

The labelMarginTop property is the amount of space between the label and the top margin.

The labelMarginWidth property is the amount of blank space between the label and the right edge of the left shadow and the left edge of the right shadow.

The labelType property specifies the type of label you want. The possible values are as follows:

The string defined by labelString is displayed.

The graphic defined by graphicsDescriptor is displayed.

The mnemonic property is a character that the user can type to select an item.

A mnemonic character is displayed with an underscore (_) and is usually used for buttons belonging to menus.

The object property is the data that the part represents. If the part represents non-string data, use this property; otherwise use the labelString or string property.

For example, you can use the object property with a converter to display the label of a button.

The partName property specifies the name you want to use to describe the part. For nonvisual parts, this text appears under the icon for the part on the free-form surface.

The name of the part can consist of alphanumeric characters, and must be different from those of all other parts on the layout surface.

If you do not specify a part name, VA Smalltalk generates a unique name based on the class name of the part.

The recomputeSize property specifies whether the part always attempts to exactly fit in the space provided a new text string, icon, or bitmap. If the recomputeSize property is set to true, when the label changes, the part changes size to include the new label.

The tabGroup property specifies whether or not the part is included as a tab stop so users can use the Tab and Backtab keys to access the part.

The tabSpacing property specifies the number of spaces you want to use when the user presses the Tab key.

The traversalOn property specifies whether users can access the part using the cursor movement keys. If the part is specified as a tab stop by using the tabGroup property, users also can use the Tab and Backtab keys to access the part.