AN3128 datasheet(48/105 Pages) STMICROELECTRONICS

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Multi-input embedded GUI library firmware

AN3128

48/105

Doc ID 16918 Rev 5

Example:

/* Declares and initiates a Page Object */

GL_Page_TypeDef page1;

Create_PageObj( &page1 );

/* Declares and initiates a Checkbox Object and add it with specified coordinates to

a Page Object */

GL_PageControls_TypeDef* CheckBox = NewCheckbox("CheckBox", "Enable", CheckboxFunc);

AddPageControlObj( (uint16_t)((LCD_Width/10)*7), (uint8_t)((LCD_Height/9)*3),

CheckBox, &page1);

...

GL_bool checkboxStatus = GetObjStatus( &page1, "CheckBox" );

4.1.27

ShowPage API global function

Table 32 describes the ShowPage function:

Example

/* Declares and initiates a Page Object */

GL_Page_TypeDef page1;

Create_PageObj( &page1 );

GL_PageControls_TypeDef* pageLabel = NewLabel( "pageLabel", "Graphic Library",

GL_HORIZONTAL, GL_FONT_BIG, GL_Blue);

AddPageControlObj((uint16_t)((LCD_Width/11)*9),(uint8_t)(LCD_Height/11),pageLabel,

&page1);

GL_PageControls_TypeDef* Button1 = NewButton( "Button1", "BUTTON1", NullFunc );

AddPageControlObj((uint16_t)((LCD_Width/10)*6),(uint8_t)((LCD_Height/9)*5), Button1,

&page1);

GL_PageControls_TypeDef* Button2 = NewButton( "Button2", "BUTTON2", NullFunc );

AddPageControlObj((uint16_t)((LCD_Width/10)*6),(uint8_t)((LCD_Height/9)*7), Button2,

&page1);

...

GL_Clear(White);

GL_SetTextColor(GL_Blue);

page1.ShowPage( &page1, GL_TRUE );

Table 32.

ShowPage API function

Name

Description

Function name

ShowPage

Function prototype

GL_ErrStatus ShowPage(GL_Page_TypeDef* pPage, GL_bool bVal)

Behavior description

GL_TRUE show / GL_FALSE hide the page

Input parameter {x}

*pPage: pointer to page structure

bVal: GL_TRUE or GL_FALSE

Output parameter {x}

None

Return value

GL_OK if successful, GL_ERROR otherwise

Required preconditions None

Called functions

No API/HAL layer functions

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