wailsapp
wails2.8 window11 上打开对话框选择确认或则取消都会crash
Description
基于最简单的样例，只要打开对话框，无论选择确认还是取消都会crash package main
import ( "context"
"github.com/wailsapp/wails/v2/pkg/runtime"
)
// App struct type App struct { ctx context.Context }
// NewApp creates a new App application struct func NewApp() *App { return &App{} }
// startup is called when the app starts. The context is saved // so we can call the runtime methods func (a *App) startup(ctx context.Context) { a.ctx = ctx }
// Greet returns a greeting for the given name func (a App) Greet(name string) string { filePath, err := runtime.SaveFileDialog(a.ctx, runtime.SaveDialogOptions{ Filters: []runtime.FileFilter{{Pattern: ".*"}}, DefaultFilename: "myproject", Title: "Save", }) if err != nil { return err.Error() }
return filePath
} 上面就是最简单的代码，错误提示如下 To develop in the browser and call your bound Go methods from Javascript, navigate to: http://localhost:34115 2024/06/12 09:44:06 The parameter is incorrect. [0612/094406.974:ERROR:window_impl.cc(121)] Failed to unregister class Chrome_WidgetWin_0. Error = 0
该问题不必现，出现后重启电脑大概率能消失，过一段时间又出现了
To Reproduce
1、运行上面最简单的demo
2、Click Greet
3、click 取消
4、crash
2024/06/12 09:53:12 The parameter is incorrect.
[0612/095312.565:ERROR:window_impl.cc(121)] Failed to unregister class Chrome_WidgetWin_0. Error = 0
Expected behaviour
正常运行
Screenshots
Attempted Fixes
重启电脑，大概率能恢复
System Details
> wails docker
Wails CLI v2.8.2
Available commands:
build Builds the application
dev Runs the application in development mode
doctor Diagnose your environment
init Initialises a new Wails project
update Update the Wails CLI
show Shows various information
generate Code Generation Tools
version The Wails CLI version
Flags:
-help
Get help on the 'wails' command.
♥ If Wails is useful to you or your company, please consider sponsoring the project:
https://github.com/sponsors/leaanthony
webview 版本：
EdgeWebView\Application\125.0.2535.92
windows 版本：
OS 名称: Microsoft Windows 11 企业版
OS 版本: 10.0.22631 暂缺 Build 22631
OS 制造商: Microsoft Corporation
OS 配置: 成员工作站
OS 构建类型: Multiprocessor Free
Additional context
跟踪代码发现是 v2\internal\go-common-file-dialog\cfd\vtblCommonFunc.go 中的 iModalWindowVtbl.show 方法crash的 func (vtbl *iModalWindowVtbl) show(objPtr unsafe.Pointer, hwnd uintptr) error { fmt.Println("iModalWindowVtbl>>>>>>>>>>>>>111111", vtbl.Show, objPtr, hwnd) fmt.Printf("Function address: %x\n", vtbl.Show) fmt.Println("iModalWindowVtbl>>>>>>>>>>>>>111111") ret, _, _ := syscall.Syscall(vtbl.Show, 1, uintptr(objPtr), hwnd, 0) fmt.Println("iModalWindowVtbl>>>>>>>>>>>>>22222") return hresultToError(ret) }
输出的结果如下：
iModalWindowVtbl>>>>>>>>>>>>>111111 140703621641488 0x2016af66958 3346448 Function address: 7ff81d62f510 iModalWindowVtbl>>>>>>>>>>>>>111111 2024/06/12 11:45:27 The parameter is incorrect. [0612/114527.816:ERROR:window_impl.cc(121)] Failed to unregister class Chrome_WidgetWin_0. Error = 0
3.0 依然有此问题
下面代码改成直接调用 windows api 就没有问题 package main
import ( "context" "fmt" "syscall" "unsafe" )
// App struct type App struct { ctx context.Context }
var ( modComdlg32 = syscall.NewLazyDLL("comdlg32.dll") procGetSaveFileName = modComdlg32.NewProc("GetSaveFileNameW")
modKernel32 = syscall.NewLazyDLL("kernel32.dll")
procGetLastError = modKernel32.NewProc("GetLastError")
)
const ( OFN_FILEMUSTEXIST = 0x00001000 OFN_PATHMUSTEXIST = 0x00000800 OFN_OVERWRITEPROMPT = 0x00000002 )
type OPENFILENAME struct { lStructSize uint32 hwndOwner uintptr hInstance uintptr lpstrFilter *uint16 lpstrCustomFilter *uint16 nMaxCustFilter uint32 nFilterIndex uint32 lpstrFile *uint16 nMaxFile uint32 lpstrFileTitle *uint16 nMaxFileTitle uint32 lpstrInitialDir *uint16 lpstrTitle *uint16 Flags uint32 nFileOffset uint16 nFileExtension uint16 lpstrDefExt *uint16 lCustData uintptr lpfnHook uintptr lpTemplateName *uint16 pvReserved uintptr dwReserved uint32 FlagsEx uint32 }
// NewApp creates a new App application struct func NewApp() *App { return &App{} }
// startup is called when the app starts. The context is saved // so we can call the runtime methods func (a *App) startup(ctx context.Context) { a.ctx = ctx }
// Greet returns a greeting for the given name func (a *App) Greet(name string) string { var ofn OPENFILENAME file := make([]uint16, 260) ofn.lStructSize = uint32(unsafe.Sizeof(ofn)) ofn.lpstrFile = &file[0] ofn.nMaxFile = uint32(len(file)) ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_OVERWRITEPROMPT
ret, _, err := procGetSaveFileName.Call(uintptr(unsafe.Pointer(&ofn)))
if ret == 0 {
fmt.Printf("Error: %v\n", err)
errorCode, _, _ := procGetLastError.Call()
fmt.Printf("CommDlgExtendedError: %d\n", errorCode)
} else {
fmt.Printf("Selected file: %s\n", syscall.UTF16ToString(file))
}
return syscall.UTF16ToString(file)
}
