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62 lines
1.9 KiB
Markdown
62 lines
1.9 KiB
Markdown
2 years ago
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# Window (lv_win)
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## Overview
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The Window is container-like object built from a header with title and buttons and a content area.
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## Parts and Styles
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The Window is built from other widgets so you can check their documentation for details:
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- Background: [lv_obj](/widgets/obj)
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- Header on the background: [lv_obj](/widgets/obj)
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- Title on the header: [lv_label](/widgets/core/label)
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- Buttons on the header: [lv_btn](/widgets/core/btn)
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- Content area on the background: [lv_obj](/widgets/obj)
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## Usage
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### Create a Window
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`lv_win_create(parent, header_height)` creates a Window with an empty header.
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### Title and buttons
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Any number of texts (but typically only one) can be added to the header with `lv_win_add_title(win, "The title")`.
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Control buttons can be added to the window's header with `lv_win_add_btn(win, icon, btn_width)`. `icon` can be any image source, and `btn_width` is the width of the button.
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The title and the buttons will be added in the order the functions are called. So adding a button, a text and two other buttons will result in a button on the left, a title, and 2 buttons on the right.
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The width of the title is set to take all the remaining space on the header. In other words: it pushes to the right all the buttons that are added after the title.
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## Get the parts
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`lv_win_get_header(win)` returns a pointer to the header, `lv_win_get_content(win)` returns a pointer to the content container to which the content of the window can be added.
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## Events
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No special events are sent by the windows, however events can be added manually to the return value of `lv_win_add_btn`.
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Learn more about [Events](/overview/event).
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## Keys
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No *Keys* are handled by the window.
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Learn more about [Keys](/overview/indev).
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## Example
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```eval_rst
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.. include:: ../../../examples/widgets/win/index.rst
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```
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## API
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```eval_rst
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.. doxygenfile:: lv_win.h
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:project: lvgl
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```
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