22.2.6 lcd_set_alpha

Set the required layer alpha value.

static int32_t lcd_set_alpha(
    uint8_t layer,
    uint8_t val
)

This function set the required layer alpha value.

Parameters

layer

Type: uint8_t

Index of layer, 0 for base layer.

val

Type: uint8_t

Alpha value to be used. 255 for transparent and 0 for opaque.

Returns

Type: int32_t

Set status.