BackStyle Property [Access 2003 VBA Language Reference]
You can use the BackStyle property to specify whether a control will be transparent. Read/write Byte.
expression Required. An expression that returns one of the objects in the Applies To list.
The BackStyle property uses the following settings.
|Normal||1||(Default for all controls except option group) The control has its interior color set by the BackColor property.|
|Transparent||0||(Default for option group) The control is transparent. The color of the form or report behind the control is visible.|
You can set the default for this property by using a control's default control style or the DefaultControl property in Visual Basic.
If the Transparent button on the Back Color button palette is selected, the BackStyle property is set to Transparent; otherwise the BackStyle property is set to Normal.