AN3128 datasheet(41/105 Pages) STMICROELECTRONICS

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AN3128

Multi-input embedded GUI library firmware

Doc ID 16918 Rev 5

41/105

AddComboOption (ComboBoxGrp1->objPTR, "Option1", ComboboxFunc);

AddComboOption (ComboBoxGrp1->objPTR, "Option2", ComboboxFunc);

AddComboOption (ComboBoxGrp1->objPTR, "Option3", ComboboxFunc);

AddPageControlObj((uint16_t)((LCD_Width/10)*7),(uint16_t)(LCD_Height/2),ComboBoxGrp1,

&page1);

/* Modify the label in a "Label Object by the active combobox option label" */

Set_Label( &page1, "pageLabel", GetComboOptionLabel(&page1, "ComboBoxGrp1") );

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

final application can use to interact with.

4.1.19

SetComboOptionLabel API global function

Table 24 describes the SetComboOptionLabel function:

Example:

/* Declares and initiates a Page Object */

GL_Page_TypeDef page1;

Create_PageObj( &page1 );

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

Page Object */

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);

/* Declares and initiates a Combobox object */

GL_PageControls_TypeDef* ComboBoxGrp1 = NewComboBoxGrp("ComboBoxGrp1");

AddComboOption (ComboBoxGrp1->objPTR, "Option1", ComboboxFunc);

AddComboOption (ComboBoxGrp1->objPTR, "Option2", ComboboxFunc);

AddComboOption (ComboBoxGrp1->objPTR, "Option3", ComboboxFunc);

AddPageControlObj((uint16_t)((LCD_Width/10)*7),(uint16_t)(LCD_Height/2),ComboBoxGrp1,

&page1);

...

/* Modifying the active combobox option label" */

SetComboOptionLabel(&page1, "ComboBoxGrp1", "NewLabel");

Table 24.

SetComboOptionLabel API function

Name

Description

Function name

SetComboOptionLabel

Function prototype

GL_ErrStatus SetComboOptionLabel(GL_Page_TypeDef* pPage, char*

objName, char* Label)

Behavior description

Set the Label for the active ComboOption

Input parameter {x}

*pPage: pointer to page structure

objName: name of the object

Label: new Label for the active ComboOption 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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