diff --git a/cmd/zenity/main.go b/cmd/zenity/main.go
index 8008832..774343c 100644
--- a/cmd/zenity/main.go
+++ b/cmd/zenity/main.go
@@ -15,6 +15,7 @@ import (
 	"path/filepath"
 	"runtime"
 	"runtime/debug"
+	"strconv"
 	"strings"
 	"syscall"
 	"time"
@@ -51,6 +52,7 @@ var (
 	text          string
 	icon          string
 	windowIcon    string
+	attach        string
 	multiple      bool
 	defaultCancel bool
 
@@ -209,6 +211,8 @@ func setupFlags() {
 	flag.Func("extra-button", "Add an extra `button`", setExtraButton)
 	flag.StringVar(&text, "text", "", "Set the dialog `text`")
 	flag.StringVar(&windowIcon, "window-icon", "", "Set the window `icon` (error, info, question, warning)")
+	flag.StringVar(&attach, "attach", "", "Set the parent `window` to attach to")
+	flag.Bool("modal", true, "Set the modal hint")
 	flag.BoolVar(&multiple, "multiple", false, "Allow multiple items to be selected")
 	flag.BoolVar(&defaultCancel, "default-cancel", false, "Give Cancel button focus by default")
 
@@ -443,6 +447,14 @@ func loadFlags() []zenity.Option {
 		opts = append(opts, zenity.WindowIcon(ingestPath(windowIcon)))
 	}
 
+	if attach != "" {
+		if i, err := strconv.ParseUint(attach, 0, 64); err != nil {
+			opts = append(opts, zenity.Attach(attach))
+		} else {
+			opts = append(opts, zenity.Attach(i))
+		}
+	}
+
 	// Message options
 
 	if noWrap {
diff --git a/color_darwin.go b/color_darwin.go
index a63e856..810d2d1 100644
--- a/color_darwin.go
+++ b/color_darwin.go
@@ -8,7 +8,9 @@ import (
 
 func selectColor(opts options) (color.Color, error) {
 	var data zenutil.Color
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
diff --git a/entry_darwin.go b/entry_darwin.go
index 53a69a8..5d4dddd 100644
--- a/entry_darwin.go
+++ b/entry_darwin.go
@@ -14,7 +14,9 @@ func entry(text string, opts options) (string, error) {
 	data.Options.Answer = &opts.entryText
 	data.Options.Hidden = opts.hideText
 	data.Options.Timeout = zenutil.Timeout
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 	switch i := opts.icon.(type) {
diff --git a/file_darwin.go b/file_darwin.go
index 62a2cbb..e8d5c64 100644
--- a/file_darwin.go
+++ b/file_darwin.go
@@ -7,7 +7,9 @@ func selectFile(opts options) (string, error) {
 	data.Options.Prompt = opts.title
 	data.Options.Invisibles = opts.showHidden
 	data.Options.Location, _ = splitDirAndName(opts.filename)
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
@@ -29,7 +31,9 @@ func selectFileMultiple(opts options) ([]string, error) {
 	data.Options.Location, _ = splitDirAndName(opts.filename)
 	data.Options.Multiple = true
 	data.Separator = zenutil.Separator
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
@@ -49,7 +53,9 @@ func selectFileSave(opts options) (string, error) {
 	data.Options.Prompt = opts.title
 	data.Options.Invisibles = opts.showHidden
 	data.Options.Location, data.Options.Name = splitDirAndName(opts.filename)
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
diff --git a/go.mod b/go.mod
index 6440e03..357a5e5 100644
--- a/go.mod
+++ b/go.mod
@@ -8,8 +8,8 @@ require (
 	github.com/ncruces/go-strftime v0.1.8
 	github.com/randall77/makefat v0.0.0-20210315173500-7ddd0e42c844
 	go.uber.org/goleak v1.1.12 // test
-	golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9
-	golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba
+	golang.org/x/image v0.0.0-20220601225756-64ec528b34cd
+	golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a
 )
 
 require (
diff --git a/go.sum b/go.sum
index 9ab6230..1a948ca 100644
--- a/go.sum
+++ b/go.sum
@@ -24,8 +24,8 @@ go.uber.org/goleak v1.1.12 h1:gZAh5/EyT/HQwlpkCy6wTpqfH9H8Lz8zbm3dZh+OyzA=
 go.uber.org/goleak v1.1.12/go.mod h1:cwTWslyiVhfpKIDGSZEM2HlOvcqm+tG4zioyIeLoqMQ=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9 h1:LRtI4W37N+KFebI/qV0OFiLUv4GLOWeEW5hn/KEJvxE=
-golang.org/x/image v0.0.0-20220413100746-70e8d0d3baa9/go.mod h1:023OzeP/+EPmXeapQh35lcL3II3LrY8Ic+EFFKVhULM=
+golang.org/x/image v0.0.0-20220601225756-64ec528b34cd h1:9NbNcTg//wfC5JskFW4Z3sqwVnjmJKHxLAol1bW2qgw=
+golang.org/x/image v0.0.0-20220601225756-64ec528b34cd/go.mod h1:doUCurBvlfPMKfmIpRIywoHmhN3VyhnoFDbvIEWF4hY=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20210508222113-6edffad5e616 h1:VLliZ0d+/avPrXXH+OakdXhpJuEoBZuwh1m2j7U6Iug=
 golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
@@ -42,12 +42,12 @@ golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba h1:AyHWHCBVlIYI5rgEM3o+1PLd0sLPcIAoaUckGQMaWtw=
-golang.org/x/sys v0.0.0-20220502124256-b6088ccd6cba/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a h1:dGzPydgVsqGcTRVwiLJ1jVbufYwmzD3LfVPLKsKg+0k=
+golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
diff --git a/internal/zenutil/env.go b/internal/zenutil/env.go
index 4242b67..ecb8288 100644
--- a/internal/zenutil/env.go
+++ b/internal/zenutil/env.go
@@ -20,6 +20,9 @@ var (
 	DateParse  = func(s string) (time.Time, error) { return time.Parse("2006-01-02", s) }
 )
 
+// Remove after 1.18.
+type any = interface{}
+
 type stringErr string
 
 func (e stringErr) Error() string { return string(e) }
diff --git a/internal/zenutil/osa_generated.go b/internal/zenutil/osa_generated.go
index 705847a..d7b5c4f 100644
--- a/internal/zenutil/osa_generated.go
+++ b/internal/zenutil/osa_generated.go
@@ -8,7 +8,7 @@ import (
 	"text/template"
 )
 
-var scripts = template.Must(template.New("").Funcs(template.FuncMap{"json": func(v interface{}) (string, error) {
+var scripts = template.Must(template.New("").Funcs(template.FuncMap{"json": func(v any) (string, error) {
 	b, err := json.Marshal(v)
 	return string(b), err
 }}).Parse(`
@@ -22,16 +22,18 @@ $.exit(-1)}
 {'rgb('+res.map(x=>Math.round(x*255))+')'}
 {{- end}}
 {{define "common" -}}
-{var app=Application.currentApplication()
-app.includeStandardAdditions=true
-{{- if .WindowIcon}}
-ObjC.import('Cocoa')
+{{- if .Application}}
+var app=Application({{json .Application}})
+{{- else}}
+var app=Application.currentApplication()
+{{- end}}
+{{- if .WindowIcon}}{ObjC.import('Cocoa')
 let nsapp=$.NSApplication.sharedApplication
 let nsimg=$.NSImage.alloc.initWithContentsOfFile({{json .WindowIcon}})
 nsapp.setActivationPolicy($.NSApplicationActivationPolicyRegular)
-nsapp.setApplicationIconImage(nsimg)
-{{- end}}
-app.activate()}
+nsapp.setApplicationIconImage(nsimg)}{{- end}}
+app.includeStandardAdditions=true
+app.activate()
 {{- end}}
 {{define "date" -}}
 ObjC.import('Cocoa')
diff --git a/internal/zenutil/osa_generator.go b/internal/zenutil/osa_generator.go
index 5d7decb..b8c11bf 100644
--- a/internal/zenutil/osa_generator.go
+++ b/internal/zenutil/osa_generator.go
@@ -111,7 +111,7 @@ import (
 	"text/template"
 )
 
-var scripts = template.Must(template.New("").Funcs(template.FuncMap{"json": func(v interface{}) (string, error) {
+var scripts = template.Must(template.New("").Funcs(template.FuncMap{"json": func(v any) (string, error) {
 	b, err := json.Marshal(v)
 	return string(b), err
 }}).Parse(` + "`{{.}}`))\n"))
diff --git a/internal/zenutil/osascripts/common.gojs b/internal/zenutil/osascripts/common.gojs
index 2aa9e84..08928e8 100644
--- a/internal/zenutil/osascripts/common.gojs
+++ b/internal/zenutil/osascripts/common.gojs
@@ -1,14 +1,16 @@
-{
+{{- if .Application}}
+  var app = Application({{json .Application}})
+{{- else}}
   var app = Application.currentApplication()
-  app.includeStandardAdditions = true
+{{- end}}
 
-  {{- if .WindowIcon}}
-    ObjC.import('Cocoa')
-    let nsapp = $.NSApplication.sharedApplication
-    let nsimg = $.NSImage.alloc.initWithContentsOfFile({{json .WindowIcon}})
-    nsapp.setActivationPolicy($.NSApplicationActivationPolicyRegular)
-    nsapp.setApplicationIconImage(nsimg)
-  {{- end}}
+{{- if .WindowIcon}}{
+  ObjC.import('Cocoa')
+  let nsapp = $.NSApplication.sharedApplication
+  let nsimg = $.NSImage.alloc.initWithContentsOfFile({{json .WindowIcon}})
+  nsapp.setActivationPolicy($.NSApplicationActivationPolicyRegular)
+  nsapp.setApplicationIconImage(nsimg)
+}{{- end}}
 
-  app.activate()
-}
\ No newline at end of file
+app.includeStandardAdditions = true
+app.activate()
\ No newline at end of file
diff --git a/internal/zenutil/run_darwin.go b/internal/zenutil/run_darwin.go
index ece8dc5..65ad218 100644
--- a/internal/zenutil/run_darwin.go
+++ b/internal/zenutil/run_darwin.go
@@ -10,7 +10,7 @@ import (
 )
 
 // Run is internal.
-func Run(ctx context.Context, script string, data interface{}) ([]byte, error) {
+func Run(ctx context.Context, script string, data any) ([]byte, error) {
 	var buf bytes.Buffer
 	err := scripts.ExecuteTemplate(&buf, script, data)
 	if err != nil {
@@ -124,7 +124,8 @@ func RunProgress(ctx context.Context, max int, data Progress) (dlg *progressDial
 }
 
 type common struct {
-	WindowIcon string
+	Application any
+	WindowIcon  string
 }
 
 // Dialog is internal.
diff --git a/list_darwin.go b/list_darwin.go
index cd89708..f1a15d1 100644
--- a/list_darwin.go
+++ b/list_darwin.go
@@ -22,7 +22,9 @@ func list(text string, items []string, opts options) (string, error) {
 	data.Options.Cancel = opts.cancelLabel
 	data.Options.Default = opts.defaultItems
 	data.Options.Empty = !opts.disallowEmpty
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
diff --git a/msg_darwin.go b/msg_darwin.go
index 3e0edd2..d5980fa 100644
--- a/msg_darwin.go
+++ b/msg_darwin.go
@@ -10,7 +10,9 @@ func message(kind messageKind, text string, opts options) error {
 	var data zenutil.Dialog
 	data.Text = text
 	data.Options.Timeout = zenutil.Timeout
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 
diff --git a/pwd_darwin.go b/pwd_darwin.go
index cb5688c..6fcb03c 100644
--- a/pwd_darwin.go
+++ b/pwd_darwin.go
@@ -18,7 +18,9 @@ func password(opts options) (string, string, error) {
 	data.Separator = zenutil.Separator
 	data.Options.Title = opts.title
 	data.Options.Timeout = zenutil.Timeout
-	if i, ok := opts.windowIcon.(string); ok {
+	if opts.attach != nil {
+		data.Application = opts.attach
+	} else if i, ok := opts.windowIcon.(string); ok {
 		data.WindowIcon = i
 	}
 	switch i := opts.icon.(type) {