AN3128 datasheet(49/105 Pages) STMICROELECTRONICS

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AN3128

Multi-input embedded GUI library firmware

Doc ID 16918 Rev 5

49/105

4.1.28

RefreshPage API global function

Table 33 describes the RefreshPage 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 );

/* Modify the label in a "Label Object" */

Set_Label(&page1, "pageLabel", "Graphic Lib New")

RefreshPage(&page1);

Table 33.

RefreshPage API function

Name

Description

Function name

RefreshPage

Function prototype

void RefreshPage (GL_Page_TypeDef* pPage)

Behavior description

Refresh the page if the status of any object was changed.

Input parameter {x}

*pPage: pointer to page structure

Output parameter {x}

None

Return value

None

Required preconditions None

Called functions

No API/HAL layer functions

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