Display control device comprising processing unit for drawing pointer and control system

摘要

The prompt responsiveness and operability of pointer display and pointer control is ensured. A display control device has: a first information processing terminal drawing a pointer corresponding to each of input operation devices on a pointer screen on the basis of an operation quantity input from each of the input operation devices; a second information processing terminal drawing a working state of an application on an application screen in accordance with the input instruction information input from each of the input operation devices; and an image synthesis unit that creates a synthesized image by superimposing each of the two screens on the other and that outputs the image to a display device.

主权项

1. A display control system connected to a plurality of input operation units via a network and adapted for moving a pointer displayed on a display unit on the basis of an operation quantity input from the input operation units and changing a working state of an application displayed on the display unit in accordance with input instruction information input from the input operation units, the display control system comprising:
a first processing unit having a first computer and a pointer screen corresponding to a display region of the display unit, the first processing unit drawing the pointer corresponding to each of the input operation units on the pointer screen on the basis of the operation quantity input from each of the input operation units; a second processing unit having a second computer different from the first computer and an application screen corresponding to the display region of the display unit, the second processing unit drawing the working state of the application on the application screen in accordance with the input instruction information input from each of the input operation units; and an image synthesis unit that creates a synthesized image in which the pointer screen on which the pointer is drawn and the application screen on which the working state of the application is drawn are superimposed on each other and that outputs the synthesized image to the display unit, wherein: the first processing unit has a dominating-right table in which identification information of the input operation unit and identification information of the application for which the input operation unit has a dominating right are associated with each other; when the input instruction information about the application is received from the input operation unit, whether the input operation unit has the dominating right of the application or not is determined by referencing the dominating-right table, and, if the input operation unit has the dominating right, the identification information of the input operation unit, the identification information of the application, and the input instruction information about the application are associated with each other and are output to the second processing unit; and the input instruction information is converted to a data format and an interface specification of a window system used by the application when the pointer is on a window of the application, and the input instruction information is ignored when the pointer is not on the window of the application.