SptMergeRect() | TFT & EPD Graphic Library 2

Syntax

SptMergeRect(bBufferS As bTftLibParameter1, wOriginX As wTftLibParameter1, wOriginY As wTftLibParameter2, wWidth As wTftLibParameter3, wHeight As wTftLibParameter4, bBufferD As bTftLibParameter2, wDestOrgX As wTftLibParameter5, wDestOrgY As wTftLibParameter6, bTransparent As bTftLibParameter3, wAlphaColor As wTftLibParameter7), Byte

Overview

Copies a rectangular region from the source buffer and blends/overlays it onto a specified location in the destination buffer, with optional transparency.

Parameters

Parameter	Description
bBufferS	Source buffer
wOriginX	X-coordinate of the bottom-left corner of the source region
wOriginY	Y-coordinate of the bottom-left corner of the source region
wWidth	Width of the region to copy
wHeight	Height of the region to copy
bBufferD	Destination buffer
wDestOrgX	X-coordinate of the bottom-left corner in the destination buffer
wDestOrgY	Y-coordinate of the bottom-left corner in the destination buffer
bTransparent	Transparency mode: 0 = Normal copy (no transparency) 1 = Transparent copy (skip pixels matching the alpha color)
wAlphaColor	Color value treated as transparent when transparency is enabled

Return value

Value	Meaning
0	Success
1	Invalid source buffer
2	Invalid destination buffer
3	Destination area too small
4	Source selection exceeds buffer bounds

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