# Vault 7: Projects

This publication series is about specific projects related to the Vault 7 main publication.

### Protego

# MLA -- Graphics Library

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Syntax
GFX_STATUS GFX_GOL_ScrollBarDraw(void * pObject);
Returns
GFX_STATUS_SUCCESS - When the object rendering is finished. GFX_STATUS_FAILURE - When the object rendering is
not yet finished. Application needs to call this rendering function again to continue the rendering.
Description
This function renders the object on the screen based on the current state of the object. Location of the object is determined
by the left, top, right and bottom parameters. The colors used are dependent on the state of the object. The font used is
determined by the style scheme set.
The text on the face of the GFX_GOL_SCROLLBAR is drawn on top of the bitmap. Text alignment based on the alignment
parameter set on the object.
When rendering objects of the same type, each object must be rendered completely before the rendering of the next object
is started. This is to avoid incomplete object rendering.
Normally, application will just call GFX_GOL_ObjectListDraw() to allow the Graphics Library to manage all object rendering.
See GFX_GOL_ObjectListDraw() for more information on object rendering.
Preconditions
Object must exist in memory.
Example
None.
Parameters
Parameters Description
pObject Pointer to the object.
Function
GFX_STATUS GFX_GOL_ScrollBarDraw(void *pObject)
1.6.2.1.11.5 GFX_GOL_ScrollBarPageGet Function
This function returns the page size of the object.
File
gfx_gol_scroll_bar.h
Syntax
uint16_t GFX_GOL_ScrollBarPageGet(GFX_GOL_SCROLLBAR * pObject);
Returns
The page size of the object.
Description
This function returns the page size of the object. Page size defines the delta change of the thumb position when incremented
via GFX_GOL_ScrollBarPositionIncrement() or decremented via GFX_GOL_ScrollBarPositionDecrement(). Page size
minimum value is 1. Maximum value is range/2.
Preconditions
Object must exist in memory.
Example
uint16_t page;
GFX_GOL_SCROLLBAR *pScrollBar;
1.6 Library Interface MLA - Graphics Library Help Graphics Object Layer
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