new
Creates an array of @initial_size tab stops.
Tab stops are specified in pixel units if @positions_in_pixels is true, otherwise in Pango units. All stops are initially at position 0.
Return
the newly allocated PangoTabArray, which should be freed with method@Pango.TabArray.free.
Parameters
initialSize
Initial number of tab stops to allocate, can be 0
positionsInPixels
whether positions are in pixel units