4D v13.4

LISTBOX SET HEADERS HEIGHT

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4D v13.4
LISTBOX SET HEADERS HEIGHT

LISTBOX SET HEADERS HEIGHT 


 

LISTBOX SET HEADERS HEIGHT ( {* ;} object ; height {; unit} )  
Parameter Type   Description
Operator in If specified, object is an object name (string)
If omitted, object is a variable
object  Form object in Object Name (if * is specified) or
Variable (if * is omitted)
height  Longint in Row height
unit  Longint in Unit of height value:
0 or omitted = pixels, 1 = lines

The LISTBOX SET HEADERS HEIGHT command modifies by programming the height of the header row in the list box designated by the object and * parameters.

If you pass the optional * parameter, this indicates that the object parameter is an object name (a string). If you do not pass this parameter, this indicates that the object is a variable. In this case, you pass a variable reference instead of a string. 

You can designate either the list box or any header of the list box.

Pass the height to set in the height parameter. By default, if you omit the unit parameter, this height is expressed in pixels. To change the unit, you can pass one of the following constants (found in the List Box theme), in the unit parameter:

Constant Type Value Comment
Listbox lines Longint 1 Height designates a number of lines. 4D calculates the height of a line according to the font
Listbox pixels Longint 0 Height is a number of pixels (default).

Headers must respect the minimum height set by the system. This height is 24 pixels under Windows and 17 pixels under Mac OS. If you pass a lower value in the height parameter, the minimum height is applied.

Note: For more information about calculation row heights, refer to the Design Reference manual.

 
PROPERTIES 

Product: 4D
Theme: List Box
Number: 1143

 
INDEX

Alphabetical list of commands

 
HISTORY 

New
Created: 4D v13

 
SEE ALSO 

LISTBOX Get headers height