The Layout Manager Definitions
When you choose a layout, a layout manager DEFINE_COM statement is automatically created in the source of your container:
Define_Com Class(#PRIM_FWLM) Name(#FWLM_1) Direction(TopToBottom)
The class and the name of the layout manager depend on its type:
|
Type |
Name |
|
Attachment layout manager |
#ATLM_n |
|
Grid layout manager |
#GDLM_n |
|
Flow layout manager |
#FWLM_n |
|
Split layout manager |
#SPLM_n |
For every component added to a layout, a layout item is added to keep the component attached to a specified place in its parent container's layout. So when you add components to a container with a layout manager, a layout item definition that determines the position of the component is also added:
DEFINE_COM CLASS(#PRIM_PHBN) NAME(#PHBN_1) CAPTION('Top') DISPLAYPOSITION(1) LEFT(0) PARENT(#COM_OWNER) TABPOSITION(1) TOP(0) WIDTH(492)
DEFINE_COM CLASS(#PRIM_ATLI) NAME(#ATLI_1) ATTACHMENT(Top) MANAGE(#PHBN_1) MARGINBOTTOM(5) PARENT(#ATLM_1)
The layout items themselves are named in the same way as the layout managers:
|
Type |
Class and Name |
|
Attachment layout manager item |
#ATLI_n |
|
Grid layout manger item |
#GDLI_n |
|
Flow layout manager item |
#FWLI_n |
|
Split layout manager item |
#SPLI_n |