Checks to see if a mouse drag starting at (start_x
, start_y
) and ending at (current_x
,
current_y
) has passed the GTK+ drag threshold, and thus should trigger the beginning of a drag-and-drop operation.
this |
a Widget |
start_x |
X coordinate of start of drag |
start_y |
Y coordinate of start of drag |
current_x |
current X coordinate |
current_y |
current Y coordinate |
true if the drag threshold has been passed. |