Method
Pango.Layout.xy_to_index
Declaration [src]
gboolean
pango_layout_xy_to_index (
PangoLayout* layout,
int x,
int y,
int* index_,
int* trailing
)
Description [src]
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_line_x_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
.
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 |
|
Direction: out | |
The called function takes ownership of the data, and is responsible for freeing it | |
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 leading edge of the grapheme. |
|
Direction: out | |
The called function takes ownership of the data, and is responsible for freeing it |