Method
PangoLayoutxy_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-
Type:
intThe X offset (in Pango units) from the left edge of the layout.
y-
Type:
intThe Y offset (in Pango units) from the top edge of the layout.
index_-
Type:
int*Location to store calculated byte index.
The argument will be set by the function. trailing-
Type:
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.
The argument will be set by the function.