diff --git a/api/wingui/cli.go b/api/wingui/cli.go
index 511f562..4d22242 100644
--- a/api/wingui/cli.go
+++ b/api/wingui/cli.go
@@ -423,22 +423,22 @@ func (c *Cli) ScreenShot(frmt string) (ret []byte, err error) {
 	return ret, err
 }
 
-func (c *Cli) ScreenDsInternal(fmt string) error {
+func (c *Cli) ScreenDsInternal() error {
 	err := c.HttpCli().JsonGet("/ipc/wingui/screen/dsinternal", nil)
 	return err
 }
 
-func (c *Cli) ScreenDsExternal(fmt string) error {
+func (c *Cli) ScreenDsExternal() error {
 	err := c.HttpCli().JsonGet("/ipc/wingui/screen/dsexternal", nil)
 	return err
 }
 
-func (c *Cli) ScreenDsClone(fmt string) error {
+func (c *Cli) ScreenDsClone() error {
 	err := c.HttpCli().JsonGet("/ipc/wingui/screen/dsclone", nil)
 	return err
 }
 
-func (c *Cli) ScreenDsExtend(fmt string) error {
+func (c *Cli) ScreenDsExtend() error {
 	err := c.HttpCli().JsonGet("/ipc/wingui/screen/dsextend", nil)
 	return err
 }