retry when shellnotifyicon fails (#3710)

* add retry mechanism for create shell notification icon

* add retry mechanism for create shell notification icon

* adjust delay and attempts

* added changelog

* Use application fatal handler instead of panic

---------

Co-authored-by: Lea Anthony <lea.anthony@gmail.com>

mkdocs-website/docs/en/changelog.md

@@ -24,6 +24,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Fixed
 - [windows] Fixed syso icon file generation bug by [atterpac](https://github.com/atterpac) in [#3675](https://github.com/wailsapp/wails/pull/3675)
 - [linux] Fix to run natively in wayland incorporated from [#1811](https://github.com/wailsapp/wails/pull/1811) in [#3614](https://github.com/wailsapp/wails/pull/3614) by [@stendler](https://github.com/stendler)
+- [windows] Fixed system tray startup panic in [#3693](https://github.com/wailsapp/wails/issues/3693) by [@DeltaLaboratory](https://github.com/DeltaLaboratory)
 
 ## v3.0.0-alpha.6 - 2024-07-30
 

v3/pkg/application/systemtray_windows.go

@@ -5,11 +5,13 @@ package application
 import (
 	"fmt"
 	"syscall"
+	"time"
 	"unsafe"
 
 	"github.com/wailsapp/wails/v3/pkg/icons"
 
 	"github.com/samber/lo"
+
 	"github.com/wailsapp/wails/v3/pkg/events"
 	"github.com/wailsapp/wails/v3/pkg/w32"
 )
@@ -174,8 +176,16 @@ func (s *windowsSystemTray) run() {
 	}
 	nid.CbSize = uint32(unsafe.Sizeof(nid))
 
-	if !w32.ShellNotifyIcon(w32.NIM_ADD, &nid) {
-		panic(syscall.GetLastError())
+	for retries := range 6 {
+		if !w32.ShellNotifyIcon(w32.NIM_ADD, &nid) {
+			if retries == 5 {
+				globalApplication.fatal("Failed to register system tray icon: %v", syscall.GetLastError())
+			}
+
+			time.Sleep(500 * time.Millisecond)
+			continue
+		}
+		break
 	}
 
 	nid.UVersion = w32.NOTIFYICON_VERSION