PgLayout.xyToIndex

Converts from X and Y position within a layout to the byte index to the character at that logical position. If the Y position is not inside the layout, the closest position is chosen (the position will be clamped inside the layout). If the X position is not within the layout, then the start or the end of the line is chosen as described for pango_layout_xy_to_index(). If either the X or Y positions were not inside the layout, then the function returns %FALSE; on an exact hit, it returns %TRUE.

class PgLayout
bool
xyToIndex
(
int x
,
int y
,
out int index
,
out int trailing
)

Parameters

x int

the X offset (in Pango units) from the left edge of the layout.

y int

the Y offset (in Pango units) from the top edge of the layout

index int

location to store calculated byte index

trailing int

location to store a integer indicating where in the grapheme the user clicked. It will either be zero, or the number of characters in the grapheme. 0 represents the trailing edge of the grapheme.

Return: %TRUE if the coordinates were inside text, %FALSE otherwise.

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