# IupMainLoopLevel

Definition: | include pGUI.e integer level = IupMainLoopLevel()
Description: | Returns the current cascade level of IupMainLoop. When no calls were done, return value is 0.
pwa/p2js: | Not supported.
Notes: | You can use this function to check if IupMainLoop was already called and avoid calling it again. A call to IupPopup will increase one level.
See Also: | IupOpen, IupClose, IupLoopStep, Guide/System Control, IDLE_ACTION, LOCKLOOP