diff --git a/vlib/clipboard/clipboard_darwin.c.v b/vlib/clipboard/clipboard_darwin.c.v
index 168c2378ae..b2ac704533 100644
--- a/vlib/clipboard/clipboard_darwin.c.v
+++ b/vlib/clipboard/clipboard_darwin.c.v
@@ -4,6 +4,7 @@ module clipboard
 #include <Cocoa/Cocoa.h>
 #flag -framework Cocoa
 #include "@VROOT/vlib/clipboard/clipboard_darwin.m"
+
 pub struct Clipboard {
 	pb             voidptr
 	last_cb_serial i64
@@ -24,22 +25,22 @@ fn new_clipboard() &Clipboard {
 	return cb
 }
 
-fn (cb &Clipboard) check_availability() bool {
+pub fn (cb &Clipboard) check_availability() bool {
 	return cb.pb != C.NULL
 }
 
-fn (mut cb Clipboard) clear() {
+pub fn (mut cb Clipboard) clear() {
 	cb.foo = 0
 	cb.set_text('')
 	//#[cb->pb clearContents];
 }
 
-fn (mut cb Clipboard) free() {
+pub fn (mut cb Clipboard) free() {
 	cb.foo = 0
 	// nothing to free
 }
 
-fn (cb &Clipboard) has_ownership() bool {
+pub fn (cb &Clipboard) has_ownership() bool {
 	if cb.last_cb_serial == 0 {
 		return false
 	}
@@ -49,11 +50,11 @@ fn (cb &Clipboard) has_ownership() bool {
 
 fn C.OSAtomicCompareAndSwapLong()
 
-fn (mut cb Clipboard) set_text(text string) bool {
+pub fn (mut cb Clipboard) set_text(text string) bool {
 	return C.darwin_set_pasteboard_text(cb.pb, text)
 }
 
-fn (mut cb Clipboard) get_text() string {
+pub fn (mut cb Clipboard) get_text() string {
 	cb.foo = 0
 	if isnil(cb.pb) {
 		return ''
diff --git a/vlib/clipboard/clipboard_windows.c.v b/vlib/clipboard/clipboard_windows.c.v
index 35a17423c1..b1f696d7bd 100644
--- a/vlib/clipboard/clipboard_windows.c.v
+++ b/vlib/clipboard/clipboard_windows.c.v
@@ -104,15 +104,15 @@ fn new_clipboard() &Clipboard {
 	return cb
 }
 
-fn (cb &Clipboard) check_availability() bool {
+pub fn (cb &Clipboard) check_availability() bool {
 	return cb.hwnd != C.HWND(C.NULL)
 }
 
-fn (cb &Clipboard) has_ownership() bool {
+pub fn (cb &Clipboard) has_ownership() bool {
 	return C.GetClipboardOwner() == cb.hwnd
 }
 
-fn (mut cb Clipboard) clear() {
+pub fn (mut cb Clipboard) clear() {
 	if !cb.get_clipboard_lock() {
 		return
 	}
@@ -121,7 +121,7 @@ fn (mut cb Clipboard) clear() {
 	cb.foo = 0
 }
 
-fn (mut cb Clipboard) free() {
+pub fn (mut cb Clipboard) free() {
 	C.DestroyWindow(cb.hwnd)
 	cb.foo = 0
 }
@@ -143,7 +143,7 @@ fn to_wide(text string) C.HGLOBAL {
 	return buf
 }
 
-fn (mut cb Clipboard) set_text(text string) bool {
+pub fn (mut cb Clipboard) set_text(text string) bool {
 	cb.foo = 0
 	buf := to_wide(text)
 	if !cb.get_clipboard_lock() {
@@ -164,7 +164,7 @@ fn (mut cb Clipboard) set_text(text string) bool {
 	return true
 }
 
-fn (mut cb Clipboard) get_text() string {
+pub fn (mut cb Clipboard) get_text() string {
 	cb.foo = 0
 	if !cb.get_clipboard_lock() {
 		return ''
diff --git a/vlib/clipboard/dummy/dummy_clipboard.v b/vlib/clipboard/dummy/dummy_clipboard.v
index cd3314396e..a3f4f35362 100644
--- a/vlib/clipboard/dummy/dummy_clipboard.v
+++ b/vlib/clipboard/dummy/dummy_clipboard.v
@@ -19,30 +19,30 @@ pub fn new_primary() &Clipboard {
 	return &Clipboard{}
 }
 
-fn (mut cb Clipboard) set_text(text string) bool {
+pub fn (mut cb Clipboard) set_text(text string) bool {
 	cb.text = text
 	cb.is_owner = true
 	cb.got_text = true
 	return true
 }
 
-fn (mut cb Clipboard) get_text() string {
+pub fn (mut cb Clipboard) get_text() string {
 	return cb.text
 }
 
-fn (mut cb Clipboard) clear() {
+pub fn (mut cb Clipboard) clear() {
 	cb.text = ''
 	cb.is_owner = false
 }
 
-fn (mut cb Clipboard) free() {
+pub fn (mut cb Clipboard) free() {
 }
 
-fn (cb &Clipboard) has_ownership() bool {
+pub fn (cb &Clipboard) has_ownership() bool {
 	return cb.is_owner
 }
 
-fn (cb &Clipboard) check_availability() bool {
+pub fn (cb &Clipboard) check_availability() bool {
 	// This is a dummy clipboard implementation,
 	// which can be always used, although it does not do much...
 	return true
diff --git a/vlib/clipboard/x11/clipboard.c.v b/vlib/clipboard/x11/clipboard.c.v
index c8a439d0af..bd00fbef26 100644
--- a/vlib/clipboard/x11/clipboard.c.v
+++ b/vlib/clipboard/x11/clipboard.c.v
@@ -198,18 +198,18 @@ fn new_x11_clipboard(selection AtomType) &Clipboard {
 	return cb
 }
 
-fn (cb &Clipboard) check_availability() bool {
+pub fn (cb &Clipboard) check_availability() bool {
 	return cb.display != C.NULL
 }
 
-fn (mut cb Clipboard) free() {
+pub fn (mut cb Clipboard) free() {
 	C.XDestroyWindow(cb.display, cb.window)
 	cb.window = C.Window(C.None)
 	// FIX ME: program hangs when closing display
 	// XCloseDisplay(cb.display)
 }
 
-fn (mut cb Clipboard) clear() {
+pub fn (mut cb Clipboard) clear() {
 	cb.mutex.@lock()
 	C.XSetSelectionOwner(cb.display, cb.selection, C.Window(C.None), C.CurrentTime)
 	C.XFlush(cb.display)
@@ -218,7 +218,7 @@ fn (mut cb Clipboard) clear() {
 	cb.mutex.unlock()
 }
 
-fn (cb &Clipboard) has_ownership() bool {
+pub fn (cb &Clipboard) has_ownership() bool {
 	return cb.is_owner
 }
 
@@ -243,7 +243,7 @@ pub fn (mut cb Clipboard) set_text(text string) bool {
 	return cb.is_owner
 }
 
-fn (mut cb Clipboard) get_text() string {
+pub fn (mut cb Clipboard) get_text() string {
 	if cb.window == C.Window(C.None) {
 		return ''
 	}