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Version: v20 R4 BETA

Form Size

4D lets you set the size of both the form and the window. These properties are interdependent and your application interface results from their interaction.

Size options depend on the value of the Size based on option.


Size based on

  • Automatic Size: The size of the form will be that necessary to display all the objects, to which will be added the margin values (in pixels) entered in the Hor Margin and Vert Margin fields.

    You can choose this option when you want to use active objects placed in an offscreen area (i.e., outside the bounding rectangle of the window) with an automatic size window. Thanks to this option, the presence of these objects will not modify the size of the window.

  • Set Size: The size of the form will be based on what you enter (in pixels) in the Width and Height fields.

  • <object name>: The size of the form will be based on the position of the selected form object. For example, if you choose an object that is placed in the bottom-right part of the area to be displayed, the form size will consist of a rectangle whose upper left corner will be the origin of the form and the lower right corner will correspond to that of the selected object, plus any margin values.

For output forms, only the Hor margin or Width fields are available.

JSON Grammar

NameData TypePossible Values
formSizeAnchorstringName of object to use to defined the size of the form

Height

Height of the form (in pixels) when the form size is Set size.

JSON Grammar

NameData TypePossible Values
heightnumberinteger value

Hor. Margin

Value to add (in pixels) to the right margin of the form when the form size is Automatic size or \<object name>

This value also determines the right-hand margins of forms used in the Label editor.

JSON Grammar

NameData TypePossible Values
rightMarginnumberinteger value

Vert. Margin

Value to add (in pixels) to the bottom margin of the form when the form size is Automatic size or \<object name>.

This value also determines the top margins of forms used in the Label editor.

JSON Grammar

NameData TypePossible Values
bottomMarginnumberinteger value

Width

Width of the form (in pixels) when the form size is Set size.

JSON Grammar

NameData TypePossible Values
widthnumberinteger value