diff --git a/Backend.go b/Backend.go
index 95968f79..c880bcff 100644
--- a/Backend.go
+++ b/Backend.go
@@ -1,6 +1,8 @@
 package giu
 
 import (
+	"fmt"
+
 	"github.com/AllenDang/cimgui-go/backend"
 	"github.com/AllenDang/cimgui-go/backend/glfwbackend"
 )
@@ -8,13 +10,15 @@ import (
 // sometimes we need to tell what we mean ;-)
 // good example is:
 // FlagsNotResizable in giu,
-// but cimgui-go has only FlagsResizable. So SetFlags(Resizable, 0)
+// but cimgui-go has only FlagsResizable. So SetFlags(Resizable, 0).
 type flagValue[T ~int] struct {
 	flag  T
 	value int
 }
 
 // GIUBackend is an abstraction layer between cimgui-go's Backends.
+//
+//nolint:revive // this name is OK
 type GIUBackend backend.Backend[MasterWindowFlags]
 
 var _ GIUBackend = &GLFWBackend{}
@@ -25,23 +29,30 @@ type GLFWBackend struct {
 	*glfwbackend.GLFWBackend
 }
 
+// NewGLFWBackend creates a new instance of GLFWBackend.
 func NewGLFWBackend() *GLFWBackend {
 	return &GLFWBackend{
 		GLFWBackend: glfwbackend.NewGLFWBackend(),
 	}
 }
 
-func (b *GLFWBackend) SetInputMode(mode MasterWindowFlags, value MasterWindowFlags) {
+// SetInputMode implements backend.Backend interface.
+func (b *GLFWBackend) SetInputMode(mode, _ MasterWindowFlags) {
 	flag := b.parseFlag(mode)
 	b.GLFWBackend.SetInputMode(flag.flag, glfwbackend.GLFWWindowFlags(flag.value))
 }
 
+// SetSwapInterval implements backend.Backend interface.
 func (b *GLFWBackend) SetSwapInterval(interval MasterWindowFlags) error {
 	intervalV := b.parseFlag(interval).flag
-	b.GLFWBackend.SetSwapInterval(intervalV)
+	if err := b.GLFWBackend.SetSwapInterval(intervalV); err != nil {
+		return fmt.Errorf("giu.GLFWBackend got error while SwapInterval: %w", err)
+	}
+
 	return nil
 }
 
+// SetWindowFlags implements backend.Backend interface.
 func (b *GLFWBackend) SetWindowFlags(flags MasterWindowFlags, _ int) {
 	flag := b.parseFlag(flags)
 	b.GLFWBackend.SetWindowFlags(flag.flag, flag.value)
diff --git a/MasterWindow.go b/MasterWindow.go
index bbe9d4cb..0d9974b2 100644
--- a/MasterWindow.go
+++ b/MasterWindow.go
@@ -100,6 +100,7 @@ func NewMasterWindow(title string, width, height int, flags MasterWindowFlags) *
 	currentBackend.SetBeforeRenderHook(mw.beforeRender)
 	currentBackend.SetAfterRenderHook(mw.afterRender)
 	currentBackend.SetBeforeDestroyContextHook(mw.beforeDestroy)
+
 	for f := MasterWindowFlagsNotResizable; f <= MasterWindowFlagsHidden; f <<= 1 {
 		if f&flags != 0 {
 			currentBackend.SetWindowFlags(f, 0) // 0 because it is not used anyway (flag values are determined by giu