AN3128 datasheet(47/105 Pages) STMICROELECTRONICS

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AN3128

Multi-input embedded GUI library firmware

Doc ID 16918 Rev 5

47/105

Example:

/* Declares and initiates a Page Object */

GL_Page_TypeDef page1;

Create_PageObj( &page1 );

/* Declares and initiates a GraphChart Object and add it to a Page Object */

MyGraphChart = NewGraphChart("MyGraphChart", "Hours", "Watt", points, 24, GL_TRUE);

AddPageControlObj( 0, 0, MyGraphChart, &page1 );

...

MyGraphChartPoints={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24};

SetGraphChartPoints( &page1, "MyGraphChart", MyGraphChartPoints, 24 );

Figure 14, 15, 16, show, in detail, the GraphChart object properties and methods which the

final application can use to interact with.

4.1.26

GetObjStatus API global function

Table 31 describes the GetObjStatus function:

Input parameter {x}

*pPage: pointer to page structure

objName: name of the object

data_points[]: the array of points to be plotted on the LCD

n_points: number of points to be plotted

Output parameter {x}

None

Return value

GL_OK if successful, GL_ERROR otherwise

Required preconditions

None

Called functions

No API/HAL layer functions

Table 30.

SetGraphChartPoints API function (continued)

Name

Description

Table 31.

GetObjStatus API function

Name

Description

Function name

GetObjStatus

Function prototype

GL_bool GetObjStatus(GL_Page_TypeDef* pThis, char* objName)

Behavior description

Return the status of the object:

– GL_FALSE: the object is not Hit

– GL_TRUE: the object has been Hit

– NULL: represents that there are no objects with that name (objName).

Input parameter {x}

*pPage: pointer to page structure

objName: name of the object

Output parameter {x}

None

Return value

GL_FALSE, GL_TRUE, or NULL in case no object is defined

Required preconditions None

Called functions

No API/HAL layer functions

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