「App:Library:LVGL:docs:Overview:Objects」の版間の差分
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| + | = Objects = | ||
| + | In LVGL the basic building blocks of a user interface are the objects, also called ''Widgets''. For example a Button, Label, Image, List, Chart or Text area. | ||
| + | |||
| + | You can see all the Object types here. | ||
| + | |||
| + | All objects are referenced using an <code>lv_obj_t</code> pointer as a handle. This pointer can later be used to set or get the attributes of the object. | ||
| + | |||
| + | == Attributes == | ||
| + | |||
| + | === Basic attributes === | ||
| + | All object types share some basic attributes: | ||
| + | |||
| + | * Position | ||
| + | * Size | ||
| + | * Parent | ||
| + | * Styles | ||
| + | * Event handlers | ||
| + | * Etc | ||
| + | |||
| + | You can set/get these attributes with <code>lv_obj_set_...</code> and <code>lv_obj_get_...</code> functions. For example: | ||
| + | /*Set basic object attributes*/ | ||
| + | lv_obj_set_size(btn1, 100, 50); /*Set a button's size*/ | ||
| + | lv_obj_set_pos(btn1, 20,30); /*Set a button's position*/ | ||
| + | To see all the available functions visit the Base object's documentation. | ||
2022年6月22日 (水) 23:00時点における版
https://docs.lvgl.io/8.2/overview/object.html
| 英文 | 自動翻訳 |
|---|---|
Objects
In LVGL the basic building blocks of a user interface are the objects, also called Widgets. For example a Button, Label, Image, List, Chart or Text area.
You can see all the Object types here.
All objects are referenced using an lv_obj_t pointer as a handle. This pointer can later be used to set or get the attributes of the object.
Attributes
Basic attributes
All object types share some basic attributes:
- Position
- Size
- Parent
- Styles
- Event handlers
- Etc
You can set/get these attributes with lv_obj_set_... and lv_obj_get_... functions. For example:
/*Set basic object attributes*/ lv_obj_set_size(btn1, 100, 50); /*Set a button's size*/ lv_obj_set_pos(btn1, 20,30); /*Set a button's position*/
To see all the available functions visit the Base object's documentation.
