| 摘要 |
A method of performing touch operation on a graphical object on a touch sensitive display of a multi-object touch handheld device is provided. The method comprises detecting the presence of at least two touch input objects; determining one of the touch input objects as pointing at a center of operation; determining a type of operation; and performing the type of operation on the graphical object at the center of operation. A handheld device with at least one processor and at least one type of memory is also provided. The handheld device further comprises touch sensitive display capable of showing at least one graphical object and sensing at least two touch input objects; means for determining the presence of the touch input objects touching the touch sensitive display; and means for determining a center of operation.
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