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.