This is hiding routine:

#DEFINE SW_HIDE 0
#DEFINE SW_SHOWNORMAL 1

DECLARE INTEGER ShowWindow IN user32 AS ShowWindowA;
	INTEGER hWindow, INTEGER nCmdShow

DECLARE INTEGER FindWindow IN user32;
	STRING lpClassName, STRING lpWindowName

hWindow = FindWindow("Shell_TrayWnd", Null)
= ShowWindowA(hWindow, SW_HIDE)

To get back to normal, change SW_HIDE to SW_SHOWNORMAL in the last line and run the code again.