A control method for an information apparatus having a touch panel display and being connected to a network, one or more target devices being controlled over the network, the control method causing a computer of the information apparatus to: display a display screen on the touch panel display , the display screen representing a floor plan of a building; display device icons representing the one or more target devices on the display screen representing the floor plan , the device icons including an icon representing an electric curtain device that is capable of opening or closing a curtain through a remote operation; and display an operation screen including a curtain image representing the curtain of the electric curtain device , on the display screen representing the floor plan , when selection of the icon representing the electric curtain device , among the one or more target devices , is sensed; wherein when a pinch-out operation is sensed on the curtain image included in the operation screen to output a first open control command to the network, display of the curtain image included in the operation screen is varied from a first image, in which the curtain of the electric curtain device is closed, to a second image, in which the curtain of the electric curtain device is opened, the curtain image included in the operation screen being opened for a width matching an operation width of the pinch-out operation; characterized in that : the control method further causing the computer of the information apparatus to: output the first open control command to the network at the time when the pinch-out operation is sensed on the curtain image included in the operation screen , the first open control command being for opening the curtain of the electric curtain device corresponding to the selected icon . display a display screen on the touch panel display , the display screen representing a floor plan of a building; display device icons representing the one or more target devices on the display screen representing the floor plan , the device icons including an icon representing an electric curtain device that is capable of opening or closing a curtain through a remote operation; and display an operation screen including a curtain image representing the curtain of the electric curtain device , on the display screen representing the floor plan , when selection of the icon representing the electric curtain device , among the one or more target devices , is sensed; wherein when a pinch-out operation is sensed on the curtain image included in the operation screen to output a first open control command to the network, display of the curtain image included in the operation screen is varied from a first image, in which the curtain of the electric curtain device is closed, to a second image, in which the curtain of the electric curtain device is opened, the curtain image included in the operation screen being opened for a width matching an operation width of the pinch-out operation; characterized in that : the control method further causing the computer of the information apparatus to: output the first open control command to the network at the time when the pinch-out operation is sensed on the curtain image included in the operation screen , the first open control command being for opening the curtain of the electric curtain device corresponding to the selected icon . <EOS>