From e03e9df1899a45af14e36b0cab352c21a92c36ae Mon Sep 17 00:00:00 2001
From: Nuno Cruces <ncruces@users.noreply.github.com>
Date: Wed, 15 Sep 2021 13:54:35 +0100
Subject: [PATCH] Unsafe rules.

---
 file_windows.go | 6 ++----
 msg_windows.go  | 8 +++-----
 util_windows.go | 1 +
 3 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/file_windows.go b/file_windows.go
index d80a950..fa0e526 100644
--- a/file_windows.go
+++ b/file_windows.go
@@ -3,7 +3,6 @@ package zenity
 import (
 	"path/filepath"
 	"reflect"
-	"runtime"
 	"syscall"
 	"unicode/utf16"
 	"unsafe"
@@ -315,9 +314,8 @@ func browseForFolder(opts options) (string, []string, error) {
 		args.Title = syscall.StringToUTF16Ptr(*opts.title)
 	}
 	if opts.filename != "" {
-		args.LParam = strptr(opts.filename)
+		args.LParam = syscall.StringToUTF16Ptr(opts.filename)
 		args.CallbackFunc = syscall.NewCallback(browseForFolderCallback)
-		defer runtime.KeepAlive(opts.filename)
 	}
 
 	if opts.ctx != nil {
@@ -420,7 +418,7 @@ type _BROWSEINFO struct {
 	Title        *uint16
 	Flags        uint32
 	CallbackFunc uintptr
-	LParam       uintptr
+	LParam       *uint16
 	Image        int32
 }
 
diff --git a/msg_windows.go b/msg_windows.go
index 6df6ad5..13bce39 100644
--- a/msg_windows.go
+++ b/msg_windows.go
@@ -2,7 +2,6 @@ package zenity
 
 import (
 	"context"
-	"runtime"
 	"syscall"
 	"unsafe"
 )
@@ -53,13 +52,12 @@ func message(kind messageKind, text string, opts options) error {
 		defer unhook()
 	}
 
-	var title uintptr
+	var title *uint16
 	if opts.title != nil {
-		title = strptr(*opts.title)
-		defer runtime.KeepAlive(*opts.title)
+		title = syscall.StringToUTF16Ptr(*opts.title)
 	}
 
-	s, _, err := messageBox.Call(0, strptr(text), title, flags)
+	s, _, err := messageBox.Call(0, strptr(text), uintptr(unsafe.Pointer(title)), flags)
 
 	if opts.ctx != nil && opts.ctx.Err() != nil {
 		return opts.ctx.Err()
diff --git a/util_windows.go b/util_windows.go
index 95b78f3..3625280 100644
--- a/util_windows.go
+++ b/util_windows.go
@@ -525,6 +525,7 @@ func uuid(s string) uintptr {
 
 type _COMObject struct{}
 
+//go:uintptrescapes
 func (o *_COMObject) Call(trap uintptr, a ...uintptr) (r1, r2 uintptr, lastErr error) {
 	switch nargs := uintptr(len(a)); nargs {
 	case 0: