Method for toggling between touch control operation modes

An electronic data processing device, capable of being toggled between a first coordinate operation mode and a second coordinate operation mode and using a touch control device for input, comprising a touch control device with a controller, wherein said electronic data processing device comprising:

• means for setting a predetermined area of said touch control device by said controller of said touch control device as a switching mode area;
• means for determining a received position signal by said controller whether to act as an instruction for toggling between said absolute coordinate operation mode and said relative coordinate operation mode;
• if said determination step is true, then the current operation mode is set to another operation mode;
• means for determining a received position signal by said controller until all position signals are received, if at least one among all said position signals is not located in said switching mode area, said determination step is set as false, and said determination step is used to confirm a normal operation of said switching operation mode and prevent toggling said operation modes by mistake, and
• a central processing unit for processing an input selectively under said first coordinate operation mode and said second coordinate operation mode.