This function removes all the variables, buttons and separators previously added to a tweak bar.

The tweak bar from which to remove all variables.

• 1 if variables were successfully removed.
• 0 if an error occurred (call TwGetLastError to retrieve the error).

TwRemoveVar, TwAddVarRW, TwAddVarRO, TwAddVarCB, TwAddButton, TwAddSeparator