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SourceVuESP-IDF Framework and Examplesi2c_oled samplelv_img_buf_set_px_alpha()

lv_img_buf_set_px_alpha() function

Set the alpha value of a pixel of an image. The color won't be affected

Syntax

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Summary

Declaration

Definition

from lv_img_buf.h:200

void lv_img_buf_set_px_alpha(lv_img_dsc_t * dsc, lv_coord_t x, lv_coord_t y, lv_opa_t opa);

Implemented in lv_img_buf.c:181

Arguments

Argument

Description

dsc

pointer to an image descriptor

x

x coordinate of the point to set

y

x coordinate of the point to set

opa

the desired opacity

Examples

References

from examples