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fix(doc): wrong code for Displays transparency (#5607)

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2024-02-06 11:55:29 +01:00
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parent ad81f1f8cc
commit 2dc9c37eb2
1 changed files with 4 additions and 4 deletions
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8
docs/overview/display.rst
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@@ -118,11 +118,11 @@ In summary, to enable transparent screens and displays for OSD menu-like
UIs:
- Set the screen's ``bg_opa`` to transparent:
:cpp:expr:`lv_obj_set_style_bg_opa(lv_screen_active(), LV_OPA_TRANSP, 0)`
:cpp:expr:`lv_obj_set_style_bg_opa(lv_screen_active(), LV_OPA_TRANSP, LV_PART_MAIN)`
- Set the bottom layer's ``bg_opa`` to transparent:
:cpp:expr:`lv_obj_set_style_bg_opa(lv_screen_active(), LV_OPA_TRANSP, 0)`
- Set the screen's bg_opa to 0:
:cpp:expr:`lv_obj_set_style_bg_opa(lv_layer_bottom(), LV_OPA_TRANSP, 0)`
:cpp:expr:`lv_obj_set_style_bg_opa(lv_layer_bottom(), LV_OPA_TRANSP, LV_PART_MAIN)`
- Set the screen's ``bg_opa`` to 0:
:cpp:expr:`lv_obj_set_style_bg_opa(lv_screen_active(), LV_OPA_0, LV_PART_MAIN)`
- Set a color format with alpha channel. E.g.
:cpp:expr:`lv_display_set_color_format(disp, LV_COLOR_FORMAT_ARGB8888)`