AN3128 datasheet(50/105 Pages) STMICROELECTRONICS

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Multi-input embedded GUI library firmware

AN3128

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Doc ID 16918 Rev 5

4.1.29

RefreshPageControl API global function

Table 34 describes the RefreshPageControl:

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")

RefreshPageControl(&page1, "pageLabel");

Table 34.

RefreshPage API function

Name

Description

Function name

RefreshPageControl

Function prototype

GL_ErrStatus RefreshPageControl (GL_Page_TypeDef* pPage, char*

objName)

Behavior description

Refresh the visualization of a page control object.

Input parameter {x}

*pPage: pointer to page structure

objName: name of the object

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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