From 5e3b82eeabb2b06e9eaa7a57e168d69a1d7703c7 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Friedrich=20Gro=C3=9Fe?= <friedrich.grosse@gmail.com>
Date: Sun, 3 May 2020 19:38:20 +0200
Subject: [PATCH] Support glfw.TransparentFramebuffer window hint
---
CHANGELOG.md | 1 +
pixelgl/window.go | 7 +++++++
2 files changed, 8 insertions(+)
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4ed4ade..e236bbf 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
## [Unreleased]
- Gamepad API?
+- Add `WindowConfig.TransparentFramebuffer` option to support window transparency onto the background
## [v0.10.0-alpha] 2020-05-08
- Upgrade to GLFW 3.3! :tada:
diff --git a/pixelgl/window.go b/pixelgl/window.go
index 9472659..80bac3c 100644
--- a/pixelgl/window.go
+++ b/pixelgl/window.go
@@ -56,6 +56,12 @@ type WindowConfig struct {
// implement proper full screen windows.
AlwaysOnTop bool
+ // TransparentFramebuffer specifies whether the window framebuffer will be
+ // transparent. If enabled and supported by the system, the window
+ // framebuffer alpha channel will be used to combine the framebuffer with
+ // the background. This does not affect window decorations.
+ TransparentFramebuffer bool
+
// VSync (vertical synchronization) synchronizes Window's framerate with the framerate of
// the monitor.
VSync bool
@@ -112,6 +118,7 @@ func NewWindow(cfg WindowConfig) (*Window, error) {
glfw.WindowHint(glfw.Decorated, bool2int[!cfg.Undecorated])
glfw.WindowHint(glfw.Floating, bool2int[cfg.AlwaysOnTop])
glfw.WindowHint(glfw.AutoIconify, bool2int[!cfg.NoIconify])
+ glfw.WindowHint(glfw.TransparentFramebuffer, bool2int[cfg.TransparentFramebuffer])
var share *glfw.Window
if currWin != nil {
--
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