Ionutz Borcoman wrote:
Hi,
The reference says:
"To make the cursor invisible, use gtk.gdk.Cursor() to create a cursor with no pixels in it."
When I try to use it, I get an error:
>>> import gtk >>> gtk.pygtk_version (2, 4, 1) >>> c = gtk.gdk.Cursor() Traceback (most recent call last): File "<stdin>", line 1, in ? TypeError: Usage: gtk.gdk.Cursor(cursor_type) gtk.gdk.Cursor(display, cursor_type) gtk.gdk.Cursor(display, pixbuf, x, y) gtk.gdk.Cusrsor(source, mask, fg, bg, x, y) >>>
Any idea on what's wrong? Is this not supported in 2.4.1? Is it a bug?
TIA,
Try:
pix = gtk.gdk.Pixmap(window, 1, 1, 1) color = gtk.gdk.Color() cursor = gtk.gdk.Cursor(pix, pix, color, color, 0, 0)
John
Thanks, it should probably work, but I've already changed my code to:
def create_empty_cursor():
pix_data = """/* XPM */
static char * invisible_xpm[] = {
"1 1 1 1",
" c None",
" "};"""
color = gtk.gdk.Color()
pix = gtk.gdk.pixmap_create_from_data(None,
pix_data, 1, 1, 1, color, color)
return gtk.gdk.Cursor(pix, pix, color, color, 0, 0)This way I don't need the window anymore and I can create the cursor before showing the widget (in my __init__).
I guess this should go in the standard pygtk, that is, a call to gtk.gdk.Cursor() with no arguments should return this cursor. As I said before, I belive hiding the cursor is a common enough operation, so it should deserve a simpler solution.
If not, your or my solution should go in the FAQ under "How do I hide the cursor?":
How do I hide the cursor? -------------------------
1. Create an invisible cursor with:
pix_data = """/* XPM */
static char * invisible_xpm[] = {
"1 1 1 1",
" c None",
" "};"""
color = gtk.gdk.Color()
pix = gtk.gdk.pixmap_create_from_data(None,
pix_data, 1, 1, 1, color, color)
invisble_cursor = gtk.gdk.Cursor(pix, pix, color, color, 0, 0)2. When you need to hide the cursor in 'some_gtk_widget', set it to the invisble one:
some_gtk_widget.window.set_cursor(invisble_cursor)
3. To show again the cursor, set it to the old cursor or to the default one:
# set the cursor to the default one some_gtk_widget.window.set_cursor(None)
Cheers,
-- Ionutz Borcoman http://borco.net/
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