View source for Format:Advanced OCP Art Studio internal structures

<div style="border: 1px solid rgb(228, 222, 222); margin: 0px 0px 5px; padding: 0.5em 1em; background-color: rgb(249, 249, 249);"><center>'''''This article originally came from Kevin Thackers' archive at [http://www.cpctech.org.uk http://www.cpctech.org.uk].'''''</center></div> 

= Advanced OCP Art Studio internal data structures  =

This document describes some of the internal structures used by [[The Advanced OCP Art Studio]]. Description of OCP Art Studio's resource data format: buttons, menu items etc are defined in this way: 

These data structures are collected into a list: 

{| border="1"
|-
! Offset 
! Length 
! Description
|-
| 0 
| 2 
| x position in pixels (0-639) (note 2)
|-
| 1 
| 1 
| Y position in lines (0-199)
|-
| 2 
| 2 
| width of element
|-
| 4 
| 1 
| height of element
|-
| 5 
| 2 
| &nbsp;??
|-
| 7 
| 2 
| address of function to call when clicked
|-
| 9 
| 1 
| &nbsp;?? if 0x02c draws horizontal lines in button
|-
| 10 
| 1 
| bit 7,6: if 0, no border is shown, if&nbsp;!=0 border is shown<br>bit 5,4:&nbsp;??<br>bit 3,2: foreground colour (border &amp; text)<br>bit 1,0: background colour (note 3)
|-
| 11 
| 1 
| &nbsp;??
|-
| 12 
| 1 
| bit 7,6: button type (bit 7=1, bit 6=1: toggle button)<br>bit 2: button state<br> 0x0c4 = toggle button 0x0a0 = tick/cross aligned to right side
|-
| 13 
| x 
| 0x0ff or ascii characters. Last char has bit 7 set. codes&gt;0x07f codes&lt;0 0x0c0 control code? control code 0x02: text with position 2 bytes x position, 1 byte y position text last char of last string has bit 7 set.
|}

#Horizontal coordinates are in the range 0-639. These define a "resolution" equivalent to CPC's mode 2. The vertical coordinates are in the range 0-199. 
#If this value is -1, then this indicates the end of the list. 
#If foreground and background are the same, then no button is displayed