[in] Boolean that specifies whether the internal display counter is to be incremented or decremented. If bShow is TRUE, the display count is incremented by one. If bShow is FALSE, the display count is decremented by one.
This function sets an internal display counter that determines whether the cursor should be displayed. The cursor is displayed only if the display count is greater than or equal to 0. If a mouse is installed, the initial display count is 0. If no mouse is installed, the display count is –1.