From bwmetz at att.com  Fri Sep  1 01:40:00 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Thu, 31 Aug 2006 18:40:00 -0500
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
In-Reply-To: <44F76A87.15751.277F60@localhost>
Message-ID: <01D5341D04A2E64AB9B3457690473367026312FD@OCCLUST01EVS1.ugd.att.com>

>From your code snippet I fail to see where you're defining "im".  I'm
assuming the value of im is the same as your VB value "Picture1.hDC".
Is that a constant from the PinPoint.Plate object?  If so, perhaps it's
not defined.  From first glance the error looks valid.

Bobby

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org]On Behalf Of Reiner M. Stoss
Sent: Thursday, August 31, 2006 2:03 PM
To: tkinter-discuss at python.org
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?


Folks, I have a problem.

I have a scriptable software that works with
images in FITS format (astronomical images).
It can generate Windows device-independent bitmaps (DIB)
and paint them as picture into any device context including
Picture controls in Visual Basic, etc.

Here is VB sample code that works for me:

---
Private Sub Command1_Click() 

Set p = CreateObject("PinPoint.Plate") 
p.AttachFITS
"M:\Images\LaSagra\20060828\012128+170000-sagra21-S001-R001.fts" 
Set m = p.NewPlateDIB() 
m.Create 1, 1, 1, 1 
m.Render 60000, 0 
m.PaintPicture Picture1.hDC 
p.DetachFITS 

End Sub 
---

The PaintPicture method sends the picture into
the PictureBox Picture1.

Now how to do the same in Python/Tkinter?
I have something as this:

---
p = win32com.client.dynamic.Dispatch('PinPoint.Plate') 
p.AttachFITS('M:/Images/LaSagra/20060828/012128+170000-sagra21-S001-R001
.fts') 
m = p.NewPlateDIB() 
m.Create(1, 1, 1, 1) 
m.Render(60000, 0) 
m.PaintPicture(im) 
#Here some Tkinter lines like root = Tk() etc.
def expose(event): 
    dib = ImageWin.Dib(im) 
    dib.expose(ImageWin.HDC(left_frame.winfo_id())) 

left_frame.bind("", expose) 
p.DetachFITS() 
---

But it crashes with this message:

---
Traceback (most recent call last):
  File "L:\pin.py", line 91, in ?
    m.PaintPicture(im)
NameError: name 'im' is not defined
---

Clearly the problem is the argument I provide when
I call PaintPicture(). So how to get the picture painted
by PaintPicture() into a Tkinter frame?

Thanks,
Reiner


_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From fredrik at pythonware.com  Fri Sep  1 11:23:19 2006
From: fredrik at pythonware.com (Fredrik Lundh)
Date: Fri, 1 Sep 2006 11:23:19 +0200
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
References: <44F76A87.15751.277F60@localhost>
Message-ID: <ed8u67$gjt$1@sea.gmane.org>

Reiner M. Stoss wrote:

> The PaintPicture method sends the picture into
> the PictureBox Picture1.
>
> Now how to do the same in Python/Tkinter?
> I have something as this:
>
> ---
> p = win32com.client.dynamic.Dispatch('PinPoint.Plate')
> p.AttachFITS('M:/Images/LaSagra/20060828/012128+170000-sagra21-S001-R001.fts')
> m = p.NewPlateDIB()
> m.Create(1, 1, 1, 1)
> m.Render(60000, 0)
> m.PaintPicture(im)

is PaintPicture rendering into a HDC?

can you get it to render to an ordinary bitmap?

</F> 




From rstoss at online.de  Fri Sep  1 11:30:49 2006
From: rstoss at online.de (Reiner M. Stoss)
Date: Fri, 01 Sep 2006 11:30:49 +0200
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
In-Reply-To: <01D5341D04A2E64AB9B3457690473367026312FD@OCCLUST01EVS1.ugd.att.com>
References: <44F76A87.15751.277F60@localhost>
Message-ID: <44F819E9.21860.3A9B36@localhost>

> From your code snippet I fail to see where you're defining "im".  I'm
> assuming the value of im is the same as your VB value "Picture1.hDC".
> Is that a constant from the PinPoint.Plate object?  If so, perhaps it's
> not defined.  From first glance the error looks valid.

Of course the error is valid, but how to avoid it? :-)
Yes, I have not defined "im". That's excatly the point.
I do not know how do define it.
Picture1 is a PictureBox in VB and the PaintPicture
method of PinPoint then sends the picture into this
PictureBox.
But I need to do it in Python/Tkinter so how to tell
the PaintPicture to send the picture into a Tkinter frame?

Again the code in VB:
---
Private Sub Command1_Click() 

Set p = CreateObject("PinPoint.Plate") 
p.AttachFITS "M:\Images\LaSagra\20060828\012128+170000-sagra21-S001-R001.fts" 
Set m = p.NewPlateDIB() 
m.Create 1, 1, 1, 1 
m.Render 60000, 0 
m.PaintPicture Picture1.hDC 
p.DetachFITS 

End Sub 
---

And the not working code in Python:
---
p = win32com.client.dynamic.Dispatch('PinPoint.Plate') 
p.AttachFITS('M:/Images/LaSagra/20060828/012128+170000-sagra21-S001-R001.fts') 
m = p.NewPlateDIB() 
m.Create(1, 1, 1, 1) 
m.Render(60000, 0) 
m.PaintPicture(im) 
#Here some Tkinter lines like root = Tk() etc.
def expose(event): 
    dib = ImageWin.Dib(im) 
    dib.expose(ImageWin.HDC(left_frame.winfo_id())) 

left_frame.bind("", expose) 
p.DetachFITS() 
---

Traceback (most recent call last):
  File "L:\pin.py", line 91, in ?
    m.PaintPicture(im)
NameError: name 'im' is not defined
---

I know how to send an image from a file to a Tkinter frame.
But in this case we talk about a DIB which is created/rendered/
painted by the methods of a software and this DIB should go
directly into the Tkinter frame.

Regards,
Reiner



From rstoss at online.de  Fri Sep  1 11:40:11 2006
From: rstoss at online.de (Reiner M. Stoss)
Date: Fri, 01 Sep 2006 11:40:11 +0200
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
In-Reply-To: <ed8u67$gjt$1@sea.gmane.org>
Message-ID: <44F81C1B.18829.433097@localhost>

Fredrik,

> is PaintPicture rendering into a HDC?
> 
> can you get it to render to an ordinary bitmap?

Here is the description of this method from the reference:

---
PlateDIB.PaintPicture() Method

Copy the DIB bitmap to another using BitBlt.

Syntax
PlateDIB.PaintPicture(DeviceContext)

The method syntax has these parts:

Part Description 
DeviceContext (Long) Handle to a GDI device context
containing the destination bitmap (HDC, Long)
Return (Nothing) Does not return a value. 

Remarks
Paints the bitmap in the PlateDIB object onto a bitmap
in some other Windows Graphics Device Interface device.
>From Visual Basic, you can paint into a Picture control.
For example, suppose you have a form with a Picture
control on it named picImage, and a PlateDIB object
that has been Create()ed and Render()ed named pdM104: 

pdM104.PaintPicture picImage.handle
---

I am new to Tkinter so this might be an easy
problem for an expert but it is above my knowledge.
I have lost already days with it :-(

I was even wondering what HDC means. I see in VB
that the PictureBox has a property called "HasDC"
and it works with "m.PaintPicture Picture1.hDC"
but I do not want to use VB at all and do all in
Python/Tkinter. So the VB code snippet was just intended
as a help to understanding the problem.

Cheers,
Reiner



From bwmetz at att.com  Fri Sep  1 19:05:24 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Fri, 1 Sep 2006 12:05:24 -0500
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
In-Reply-To: <44F81C1B.18829.433097@localhost>
Message-ID: <01D5341D04A2E64AB9B34576904733670263177F@OCCLUST01EVS1.ugd.att.com>

hDC is "handle to device context" in MS lingo.  I can't answer the use
of DCs in Tkinter, but I'm now very interested in Fredrik's response
having understood what you're doing after you second mail.  Wondering
too if the win32 GetDCex call might be used...just not sure how that'd
interface with tkinter.

Bobby

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org]On Behalf Of Reiner M. Stoss
Sent: Friday, September 01, 2006 2:40 AM
To: tkinter-discuss at python.org
Subject: Re: [Tkinter-discuss] How to get DIB into Tkinter frame?


Fredrik,

> is PaintPicture rendering into a HDC?
> 
> can you get it to render to an ordinary bitmap?

Here is the description of this method from the reference:

---
PlateDIB.PaintPicture() Method

Copy the DIB bitmap to another using BitBlt.

Syntax
PlateDIB.PaintPicture(DeviceContext)

The method syntax has these parts:

Part Description 
DeviceContext (Long) Handle to a GDI device context
containing the destination bitmap (HDC, Long)
Return (Nothing) Does not return a value. 

Remarks
Paints the bitmap in the PlateDIB object onto a bitmap
in some other Windows Graphics Device Interface device.
>From Visual Basic, you can paint into a Picture control.
For example, suppose you have a form with a Picture
control on it named picImage, and a PlateDIB object
that has been Create()ed and Render()ed named pdM104: 

pdM104.PaintPicture picImage.handle
---

I am new to Tkinter so this might be an easy
problem for an expert but it is above my knowledge.
I have lost already days with it :-(

I was even wondering what HDC means. I see in VB
that the PictureBox has a property called "HasDC"
and it works with "m.PaintPicture Picture1.hDC"
but I do not want to use VB at all and do all in
Python/Tkinter. So the VB code snippet was just intended
as a help to understanding the problem.

Cheers,
Reiner


_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From rstoss at online.de  Mon Sep  4 14:59:41 2006
From: rstoss at online.de (Reiner M. Stoss)
Date: Mon, 04 Sep 2006 14:59:41 +0200
Subject: [Tkinter-discuss] How to get DIB into Tkinter frame?
In-Reply-To: <01D5341D04A2E64AB9B34576904733670263177F@OCCLUST01EVS1.ugd.att.com>
References: <44F81C1B.18829.433097@localhost>
Message-ID: <44FC3F5D.21108.FA7CE6@localhost>

> hDC is "handle to device context" in MS lingo.  I can't answer the use
> of DCs in Tkinter, but I'm now very interested in Fredrik's response
> having understood what you're doing after you second mail.  Wondering
> too if the win32 GetDCex call might be used...just not sure how that'd
> interface with tkinter.

Thanks, Bobby. Someone mentioned that it might work like this:

class ImageShower(Tkinter.Frame):
	def __init__(self, dib):
		Tkinter.Frame.__init__(self)
		self.dib = dib
		self.bind("<Map>", self.redraw)
	
	def redraw(self, ev=None):
		self.dib.expose(ImageWin.HWND(self.winfo_id()))

But now how to make the connection between
PaintPicture(DeviceContext) and ImageShower()?
Something like this doesn't work:
m.PaintPicture(ImageShower(frame1))

It returns:
Traceback (most recent call last):
  File "L:\pin.py", line 100, in ?
    m.PaintPicture(ImageShower(frame1))
  File "<COMObject NewPlateDIB>", line 2, in PaintPicture
AttributeError: ImageShower instance has no attribute '__int__'

Reiner



From rstoss at online.de  Mon Sep  4 15:53:17 2006
From: rstoss at online.de (Reiner M. Stoss)
Date: Mon, 04 Sep 2006 15:53:17 +0200
Subject: [Tkinter-discuss] maybe like this? (was RE:  How to get...)
In-Reply-To: <01D5341D04A2E64AB9B34576904733670263177F@OCCLUST01EVS1.ugd.att.com>
References: <44F81C1B.18829.433097@localhost>
Message-ID: <44FC4BED.29576.12B90BF@localhost>

dib = ImageWin.Dib(...)
hdc = ImageWin.HDC(left_frame.winfo_id())
m.PaintPicture(hdc)
dib.expose(hdc)

All seems okay, however I do not know what to insert
for the "..."

If I use just:
hdc = ImageWin.HDC(left_frame.winfo_id())
m.PaintPicture(hdc)

then I get no error but the image does not appear on the
screen. So do I have to use the expose method to
make it appear? If so, how to define dib?

Reiner



From Ilknur.Ozturk at cabot.com.tr  Wed Sep 13 09:25:42 2006
From: Ilknur.Ozturk at cabot.com.tr (Ilknur Ozturk)
Date: Wed, 13 Sep 2006 10:25:42 +0300
Subject: [Tkinter-discuss] bwidget progressbar
Message-ID: <79CD3DAD56583A4298D4941761CF687A657629@cabottrexch.cabot.local>

Hi,

 

I'm trying to use bwidget progressbar, but I could not find a page that
explains its options and methods and gives some basic examples. If you
know such a page, would you please send me its link?  If no, can you
send us some info about it?

 

Thanks,

 

ilknur

 



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From klappnase at web.de  Wed Sep 13 11:32:21 2006
From: klappnase at web.de (Michael Lange)
Date: Wed, 13 Sep 2006 11:32:21 +0200
Subject: [Tkinter-discuss] bwidget progressbar
In-Reply-To: <79CD3DAD56583A4298D4941761CF687A657629@cabottrexch.cabot.local>
References: <79CD3DAD56583A4298D4941761CF687A657629@cabottrexch.cabot.local>
Message-ID: <20060913113221.7be2c032.klappnase@web.de>

On Wed, 13 Sep 2006 10:25:42 +0300
"Ilknur Ozturk" <Ilknur.Ozturk at cabot.com.tr> wrote:

> Hi,
> 
>  
> 
> I'm trying to use bwidget progressbar, but I could not find a page that
> explains its options and methods and gives some basic examples. If you
> know such a page, would you please send me its link?  If no, can you
> send us some info about it?
> 
>  

Hi Ilknur,

have a look at the bwidget man pages that come with the pybwidget package.

I hope this helps

Michael

From klappnase at web.de  Thu Sep 14 10:26:07 2006
From: klappnase at web.de (Michael Lange)
Date: Thu, 14 Sep 2006 10:26:07 +0200
Subject: [Tkinter-discuss] bwidget progressbar
In-Reply-To: <79CD3DAD56583A4298D4941761CF687A6576F9@cabottrexch.cabot.local>
References: <79CD3DAD56583A4298D4941761CF687A6576F9@cabottrexch.cabot.local>
Message-ID: <20060914102607.6e8dac10.klappnase@web.de>

On Wed, 13 Sep 2006 15:50:47 +0300
"Ilknur Ozturk" <Ilknur.Ozturk at cabot.com.tr> wrote:

> Thanks Michael,
> 
> I am new in Tk() and it will good for me if I can find samples for its
> usage. I found some on internet but they are very complex for me. In man
> pages, the options and methods are listed but there is no basic sample
> of them:(
> 

Hi Ilknur,

usually Tk man pages are quite straightforward to "translate" into Python.
The standard and widget-specific options in Tk begin with "-" (like -height),
in Python you can pass them to the widget constructor or to configure(), like
widget.configure(height=20). The WIDGET COMMAND section describes the
available commands for the widget, in case of the ProgressBar there is only
cget() and configure().

So an (untested) example according to the man page might look like:

from Tkinter import *
import bwidget

root = Tk()
var = IntVar()
var.set(0)
p = bwidget.ProgressBar(root, height=20, width=200, maximum=100, variable=var, type='normal')
p.pack()

def run_test():
    if var.get() < 100:
        var.set(var.get() + 1)
        root.after(50, run_test)
run_test()

root.mainloop()

I hope this helps

Michael

From mj at maya3d.dk  Thu Sep 14 10:05:24 2006
From: mj at maya3d.dk (Mikkel Jans)
Date: Thu, 14 Sep 2006 01:05:24 -0700 (PDT)
Subject: [Tkinter-discuss] Transparent Background Text
Message-ID: <6301194.post@talk.nabble.com>


Hello

Is it possible to make a text widget's background transparent? 
-- 
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Sent from the Python - tkinter-discuss forum at Nabble.com.


From Sumanth.Thallam at wabco-auto.com  Thu Sep 14 10:15:42 2006
From: Sumanth.Thallam at wabco-auto.com (sumanth_scl)
Date: Thu, 14 Sep 2006 01:15:42 -0700 (PDT)
Subject: [Tkinter-discuss] handling of item selected in the listbox
Message-ID: <6301312.post@talk.nabble.com>


hello friends.... i am new to forum, and i got a problem while using tkinter
GUI with python.My script performs some initial operations and calls the
result ot the operation to be displayed in listbox, and depending on
selection of user input, the program should again proceede with some more
operations. but the variable where i stored the input given by user to
listbox is unable to hold that value if the processing is not in the GUI
part.... can any one suggest solution for this. i am giving the part of
python program for ur understanding the problem..

#__________________________________________________________________GUI_______________________________________________________________
from Tkinter import *

def whichselected() :
    
    return int(select.curselection()[0])
def loadEntry () :
    temp_name=Total_variants[whichselected()]
    print temp_name
        
    

def makeWindow () :
    global nameVar, select
    win = Tk()

    frame1 = Frame(win)
    frame1.pack()

    Label(frame1, text="List of Variants (please select the variant to be
analysed)").grid(row=0, column=0, sticky=W)
    
    frame3 = Frame(win)       # select of names
    frame3.pack()
    select = Listbox(frame3, height=22, width=85)
    select.pack(side=LEFT)
    


    frame2 = Frame(win)
    frame2.pack()
    b1=Button(frame2,text="Enter",command=loadEntry)
    b1.grid(row=2, column=0, sticky=W)
    
    
    return win    
    
    
def setSelect () :
    #Total_variants.sort()
    
    for name in Total_variants:
        select.insert (END, name)



def user_variant ():
    win = makeWindow()
    setSelect ()
    print temp_name
    win.mainloop()

#_________________________________________________________________________________________________________________________________________
The script will run and collect some variants and store them in
Total_variants , which is global variable and the script will
calluser_variant().
now the problem is temp_name in function loadEntry () will give the exact
thing selected by the user, the print temp_name in the function
user_variant() will give error , not defined. If i define it as global then
the value assaigned to it will print or some junk is printed and not the
user selected thing. actually i want to use temp_name in later part of the
program, but i m getting the error not defined. can any one give me the
solution how to handle this.
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From stewart.midwinter at gmail.com  Fri Sep 15 01:29:31 2006
From: stewart.midwinter at gmail.com (Stewart Midwinter)
Date: Thu, 14 Sep 2006 17:29:31 -0600
Subject: [Tkinter-discuss] handling of item selected in the listbox
In-Reply-To: <6301312.post@talk.nabble.com>
References: <6301312.post@talk.nabble.com>
Message-ID: <d4c0d4800609141629v370de1e7s87cbd5c11016692c@mail.gmail.com>

Sumanth, if you put your entry data into a StringVar or IntVar, it will be
available for use elsewhere in the application.  You can combine this with
the textvariable parameter, as discussed in example 8-5 in Grayson's book
Python and Tkinter Programming. all his examples are available here:
http://www.manning.com/grayson/ and the book is recommended.

here's his example 8-5:

from Tkinter import *

class Var(Frame):
    def __init__(self, master=None):
        Frame.__init__(self, master)
        self.pack()

        self.field = Entry()
        self.field.pack()

        self.value = StringVar()
        self.value.set("Jean-Paul Sartre")
        self.field["textvariable"] = self.value

        self.field.bind('<Key-Return>', self.print_value)

    def print_value(self, event):
        print 'Value is "%s"' % self.value.get()

test = Var()
test.mainloop()
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From stewart.midwinter at gmail.com  Fri Sep 15 01:33:08 2006
From: stewart.midwinter at gmail.com (Stewart Midwinter)
Date: Thu, 14 Sep 2006 17:33:08 -0600
Subject: [Tkinter-discuss] Transparent Background Text
In-Reply-To: <6301194.post@talk.nabble.com>
References: <6301194.post@talk.nabble.com>
Message-ID: <d4c0d4800609141633n5c921ca3k282d1633a7ea775c@mail.gmail.com>

well, with canvas widgets you can say fill="" and it will be transparent.
Not sure that helps with text though.

s


On 9/14/06, Mikkel Jans <mj at maya3d.dk> wrote:
>
>
> Hello
>
> Is it possible to make a text widget's background transparent?
>
>
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From Cameron at phaseit.net  Fri Sep 15 01:48:59 2006
From: Cameron at phaseit.net (Cameron Laird)
Date: Thu, 14 Sep 2006 23:48:59 +0000
Subject: [Tkinter-discuss] Transparent Background Text
In-Reply-To: <6301194.post@talk.nabble.com>
References: <6301194.post@talk.nabble.com>
Message-ID: <20060914234859.GA15589@lairds.us>

On Thu, Sep 14, 2006 at 01:05:24AM -0700, Mikkel Jans wrote:
			.
			.
			.
> Is it possible to make a text widget's background transparent? 
			.
			.
			.
Effectively, no.  Under Windows, with enough C-level coding, you
might get results that are temporarily satisfying, but it turns
out to be quite a hard problem.

From bwmetz at att.com  Fri Sep 15 02:37:28 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Thu, 14 Sep 2006 19:37:28 -0500
Subject: [Tkinter-discuss] Transparent Background Text
In-Reply-To: <20060914234859.GA15589@lairds.us>
Message-ID: <01D5341D04A2E64AB9B345769047336702767C60@OCCLUST01EVS1.ugd.att.com>

I've heard transparency is available in newer versions of Tk but not
sure it's trickled into a tkinter distribution yet.

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org]On Behalf Of Cameron Laird
Sent: Thursday, September 14, 2006 4:49 PM
To: Mikkel Jans
Cc: tkinter-discuss at python.org
Subject: Re: [Tkinter-discuss] Transparent Background Text


On Thu, Sep 14, 2006 at 01:05:24AM -0700, Mikkel Jans wrote:
			.
			.
			.
> Is it possible to make a text widget's background transparent? 
			.
			.
			.
Effectively, no.  Under Windows, with enough C-level coding, you
might get results that are temporarily satisfying, but it turns
out to be quite a hard problem.
_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From chris at niekel.net  Fri Sep 15 22:57:06 2006
From: chris at niekel.net (Chris Niekel)
Date: Fri, 15 Sep 2006 22:57:06 +0200
Subject: [Tkinter-discuss] Transparent messages
Message-ID: <20060915205706.GB13685@kira.niekel.net>

Hi,

I read this article
http://www.humanized.com/weblog/2006/09/11/monolog_boxes_and_transparent_messages/
or http://tinyurl.com/k5jed and thought it'd be nice to play with this.

Does anyone have an idea how this could be done with tkinter? For those who
don't want to see the article, they suggest an alternative to a
messagedialog, by showing a semi-transparent widget in the window, which
disappears upon user-activity.

I'm not so good at tkinter yet, but I'd love to use something like this. 

Regards,
Chris Niekel

From gerardo at computo-industrial.com.mx  Sat Sep 16 00:24:29 2006
From: gerardo at computo-industrial.com.mx (Gerardo Juarez)
Date: Fri, 15 Sep 2006 18:24:29 -0400 (EDT)
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
Message-ID: <Pine.LNX.4.44.0609151818430.4474-100000@computo-industrial.com.mx>


Hi,

I want a Python/Tk application to minimize itself as soon as it starts (it 
acts in the background). Is there a way to make this happen?

An another question: how can I make this application appear on the tool
bar, next to the volume control, anti-virus software and similar
applications? I have searched and cannot find anything related.

Thanks in advance,
Gerardo



From bwmetz at att.com  Sat Sep 16 01:45:51 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Fri, 15 Sep 2006 18:45:51 -0500
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <Pine.LNX.4.44.0609151818430.4474-100000@computo-industrial.com.mx>
Message-ID: <01D5341D04A2E64AB9B34576904733670276872F@OCCLUST01EVS1.ugd.att.com>

use the withdraw() function, e.g.

from Tkinter import *
root = Tk()
root.withdraw()				# Hide the window
root.deiconify()				# Unhide the window

Bobby

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org]On Behalf Of Gerardo Juarez
Sent: Friday, September 15, 2006 3:24 PM
To: tkinter-discuss at python.org
Subject: [Tkinter-discuss] Minimizing a Python/Tk application



Hi,

I want a Python/Tk application to minimize itself as soon as it starts
(it 
acts in the background). Is there a way to make this happen?

An another question: how can I make this application appear on the tool
bar, next to the volume control, anti-virus software and similar
applications? I have searched and cannot find anything related.

Thanks in advance,
Gerardo


_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From francois.schnell at gmail.com  Sat Sep 16 10:25:05 2006
From: francois.schnell at gmail.com (francois schnell)
Date: Sat, 16 Sep 2006 10:25:05 +0200
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <Pine.LNX.4.44.0609151818430.4474-100000@computo-industrial.com.mx>
References: <Pine.LNX.4.44.0609151818430.4474-100000@computo-industrial.com.mx>
Message-ID: <13a83ca10609160125s3e83ee65g2a93cbb966f3286@mail.gmail.com>

On 16/09/06, Gerardo Juarez <gerardo at computo-industrial.com.mx> wrote:
>
>
>
> An another question: how can I make this application appear on the tool
> bar, next to the volume control, anti-virus software and similar
> applications? I have searched and cannot find anything related.


I was searching for that also but I believe it's impossible with tkinter
according to this :
http://mail.python.org/pipermail/python-list/2002-September/123257.html


> from Tkinter import *
> root = Tk()
> root.withdraw()                         # Hide the window
> root.deiconify()                                # Unhide the window
>

I'm using also deiconify for a windows app. It worked fine as long as I was
in the "main thread" but I had random problems when using it from another
thread (which I couldn't avoid).

I'm trying/learning wxpython now for a proper systray control and to see how
the "deiconification from another thread" behave.

francois

> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
>
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From gerardo at computo-industrial.com.mx  Wed Sep 20 18:51:39 2006
From: gerardo at computo-industrial.com.mx (Gerardo Juarez)
Date: Wed, 20 Sep 2006 12:51:39 -0400 (EDT)
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <01D5341D04A2E64AB9B34576904733670276872F@OCCLUST01EVS1.ugd.att.com>
Message-ID: <Pine.LNX.4.44.0609201245001.1669-100000@computo-industrial.com.mx>


Thanks, it works, but, once the application is minimized I don't have any 
way to access it -to tell it to deiconify itself for example. I doesn't 
use a console window. Is killing it the only option?

Gerardo

On Fri, 15 Sep 2006, Metz, Bobby W, WWCS wrote:

> use the withdraw() function, e.g.
> 
> from Tkinter import *
> root = Tk()
> root.withdraw()				# Hide the window
> root.deiconify()				# Unhide the window
> 
> Bobby
> 


From gerardo at computo-industrial.com.mx  Wed Sep 20 18:58:06 2006
From: gerardo at computo-industrial.com.mx (Gerardo Juarez)
Date: Wed, 20 Sep 2006 12:58:06 -0400 (EDT)
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <13a83ca10609160125s3e83ee65g2a93cbb966f3286@mail.gmail.com>
Message-ID: <Pine.LNX.4.44.0609201253200.1669-100000@computo-industrial.com.mx>


Thanks Francois,

Multiple threads are always trickier. On the other hand, wxpython could be
the solution, but I wish it could be done in Tk, because I already have
the multiplatform program written and it would save me redoing it just for
Windows. And also see my previous message.

Gerardo

On Sat, 16 Sep 2006, francois schnell wrote:

> On 16/09/06, Gerardo Juarez <gerardo at computo-industrial.com.mx> wrote:
> >
> >
> >
> > An another question: how can I make this application appear on the tool
> > bar, next to the volume control, anti-virus software and similar
> > applications? I have searched and cannot find anything related.
> 
> 
> I was searching for that also but I believe it's impossible with tkinter
> according to this :
> http://mail.python.org/pipermail/python-list/2002-September/123257.html
> 
> 
> > from Tkinter import *
> > root = Tk()
> > root.withdraw()                         # Hide the window
> > root.deiconify()                                # Unhide the window
> >
> 
> I'm using also deiconify for a windows app. It worked fine as long as I was
> in the "main thread" but I had random problems when using it from another
> thread (which I couldn't avoid).
> 
> I'm trying/learning wxpython now for a proper systray control and to see how
> the "deiconification from another thread" behave.
> 
> francois
> 
> > _______________________________________________
> > Tkinter-discuss mailing list
> > Tkinter-discuss at python.org
> > http://mail.python.org/mailman/listinfo/tkinter-discuss
> >
> 


From bwmetz at att.com  Wed Sep 20 19:02:52 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Wed, 20 Sep 2006 12:02:52 -0500
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <Pine.LNX.4.44.0609201245001.1669-100000@computo-industrial.com.mx>
Message-ID: <01D5341D04A2E64AB9B3457690473367027D32CE@OCCLUST01EVS1.ugd.att.com>

What type of window are you displaying?  It sounds like you're tying the
withdraw code to a button or something for a user to click; otherwise,
you would have some event or other sub-routine that fires the deiconify
later based on conditions or program flow.  In my example below, as long
as you have a variable pointing to the window you can call the deiconify
at any time.  If there is a simple minimize instead of hide...I don't
remember what that function is.

B 

-----Original Message-----
From: tkinter-discuss-bounces+bwmetz=att.com at python.org
[mailto:tkinter-discuss-bounces+bwmetz=att.com at python.org] On Behalf Of
Gerardo Juarez
Sent: Wednesday, September 20, 2006 9:52 AM
To: tkinter-discuss at python.org
Subject: Re: [Tkinter-discuss] Minimizing a Python/Tk application


Thanks, it works, but, once the application is minimized I don't have
any 
way to access it -to tell it to deiconify itself for example. I doesn't 
use a console window. Is killing it the only option?

Gerardo

On Fri, 15 Sep 2006, Metz, Bobby W, WWCS wrote:

> use the withdraw() function, e.g.
> 
> from Tkinter import *
> root = Tk()
> root.withdraw()				# Hide the window
> root.deiconify()				# Unhide the window
> 
> Bobby
> 

_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From bwmetz at att.com  Wed Sep 20 19:08:53 2006
From: bwmetz at att.com (Metz, Bobby W, WWCS)
Date: Wed, 20 Sep 2006 12:08:53 -0500
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <Pine.LNX.4.44.0609201253200.1669-100000@computo-industrial.com.mx>
Message-ID: <01D5341D04A2E64AB9B3457690473367027D32F2@OCCLUST01EVS1.ugd.att.com>

Yes, manipulating Tk from a child thread is problematic and can't be
done directly, e.g. try launching a Dialog box from a thread and see
what happens.  One trick I've done in the past is to pass a reference to
the parent to the child thread, then when I want to update the GUI in
the parent, say a status message line, I simple set the variable behind
it using the parent reference.  If you're going to have multiple threads
updating that could get tricky I suppose considering the variable
locking, but I'm sure someone out here has done it.

Anyone?

-----Original Message-----
From: tkinter-discuss-bounces at python.org
[mailto:tkinter-discuss-bounces at python.org] On Behalf Of Gerardo Juarez
Sent: Wednesday, September 20, 2006 9:58 AM
To: tkinter-discuss at python.org
Subject: Re: [Tkinter-discuss] Minimizing a Python/Tk application


Thanks Francois,

Multiple threads are always trickier. On the other hand, wxpython could
be
the solution, but I wish it could be done in Tk, because I already have
the multiplatform program written and it would save me redoing it just
for
Windows. And also see my previous message.

Gerardo

On Sat, 16 Sep 2006, francois schnell wrote:

> On 16/09/06, Gerardo Juarez <gerardo at computo-industrial.com.mx> wrote:
> >
> >
> >
> > An another question: how can I make this application appear on the
tool
> > bar, next to the volume control, anti-virus software and similar
> > applications? I have searched and cannot find anything related.
> 
> 
> I was searching for that also but I believe it's impossible with
tkinter
> according to this :
>
http://mail.python.org/pipermail/python-list/2002-September/123257.html
> 
> 
> > from Tkinter import *
> > root = Tk()
> > root.withdraw()                         # Hide the window
> > root.deiconify()                                # Unhide the window
> >
> 
> I'm using also deiconify for a windows app. It worked fine as long as
I was
> in the "main thread" but I had random problems when using it from
another
> thread (which I couldn't avoid).
> 
> I'm trying/learning wxpython now for a proper systray control and to
see how
> the "deiconification from another thread" behave.
> 
> francois
> 
> > _______________________________________________
> > Tkinter-discuss mailing list
> > Tkinter-discuss at python.org
> > http://mail.python.org/mailman/listinfo/tkinter-discuss
> >
> 

_______________________________________________
Tkinter-discuss mailing list
Tkinter-discuss at python.org
http://mail.python.org/mailman/listinfo/tkinter-discuss

From gerardo at computo-industrial.com.mx  Wed Sep 20 19:36:20 2006
From: gerardo at computo-industrial.com.mx (Gerardo Juarez)
Date: Wed, 20 Sep 2006 13:36:20 -0400 (EDT)
Subject: [Tkinter-discuss] Minimizing a Python/Tk application
In-Reply-To: <01D5341D04A2E64AB9B3457690473367027D32CE@OCCLUST01EVS1.ugd.att.com>
Message-ID: <Pine.LNX.4.44.0609201327480.5026-100000@computo-industrial.com.mx>


I just found it! What I want is to run the application minimized and to
see the controls only when I need to reconfigure its behaviour. I searched
for the function that you mention and found that it must be iconify().
Like this:

root = Tk()
root.iconify()

withdraw() removes the window from the screen altogether and probably is 
the right choice for a Toplevel window you don't need anymore, but which 
can be recalled with a button from the main window that's still displayed. 
Which is what you were talking about.

Thanks for the tip.

Gerardo

On Wed, 20 Sep 2006, Metz, Bobby W, WWCS wrote:

> What type of window are you displaying?  It sounds like you're tying the
> withdraw code to a button or something for a user to click; otherwise,
> you would have some event or other sub-routine that fires the deiconify
> later based on conditions or program flow.  In my example below, as long
> as you have a variable pointing to the window you can call the deiconify
> at any time.  If there is a simple minimize instead of hide...I don't
> remember what that function is.
> 
> B 
> 
> -----Original Message-----
> From: tkinter-discuss-bounces+bwmetz=att.com at python.org
> [mailto:tkinter-discuss-bounces+bwmetz=att.com at python.org] On Behalf Of
> Gerardo Juarez
> Sent: Wednesday, September 20, 2006 9:52 AM
> To: tkinter-discuss at python.org
> Subject: Re: [Tkinter-discuss] Minimizing a Python/Tk application
> 
> 
> Thanks, it works, but, once the application is minimized I don't have
> any 
> way to access it -to tell it to deiconify itself for example. I doesn't 
> use a console window. Is killing it the only option?
> 
> Gerardo
> 
> On Fri, 15 Sep 2006, Metz, Bobby W, WWCS wrote:
> 
> > use the withdraw() function, e.g.
> > 
> > from Tkinter import *
> > root = Tk()
> > root.withdraw()				# Hide the window
> > root.deiconify()				# Unhide the window
> > 
> > Bobby
> > 
> 
> _______________________________________________
> Tkinter-discuss mailing list
> Tkinter-discuss at python.org
> http://mail.python.org/mailman/listinfo/tkinter-discuss
> 


From mhaimes at MIT.EDU  Wed Sep 20 18:27:47 2006
From: mhaimes at MIT.EDU (Michael M Haimes)
Date: Wed, 20 Sep 2006 12:27:47 -0400
Subject: [Tkinter-discuss] Tkinter, threads? memory?
Message-ID: <20060920122747.vco8o18m4c48cswg@webmail.mit.edu>

Hello Tkinter community, I'm a relatively experienced Python/Tk programmer
having worked on multiple larger scale projects now, and I'm having two issues
with Tkinter:

------------1----------
Linux implementations of Python/Tkinter (the most current) seem to exhibit the
problem, but not Sun/Solaris or Windows.

Essentially, I can't animate objects on a canvas without leaking memory at about
1Mb/s . I've tried 4 different methods, either deleting and redrawing objects,
or just moving objects, and either using Tk tags to label and operate the
objects, or storing their IDs in my program and operating with them that way. I
can't think of any other way to do this, and I basically need to. I would try
the WCK to make my own, but the idea is to have the software run on a base
install of Python.

The link to the four example test scripts I wrote up is here:
http://web.mit.edu/mhaimes/Public/tktest.tar

------------2----------
The Mac OS X implementation of Python seems to exhibit this problem, and no
other systems.

This problem is related to the above, namely, on the Mac animation seems to be
totally broken. Whenever Tk is running its event loop, it stops all other
python threads from processing and sits and waits for input. So my example code
below runs a counter in a background thread which increments the number Tk has
displayed. On Windows/Linux, it just counts up until you press exit. On the
Mac, it will sit there and freeze if you aren't inputting anything, but as soon
as you wave the mouse around or start typing it'll continue to increment;
whereas on Windows and Linux, the counter just counts up no matter what you are
inputting. I know this could be done without two separate threads, but the real
program that this is modelling an issue I'm having needs Tk to be in its event
loop, so that is not an option.

Test code as follows:
#################
import Tkinter
import thread
import sys

app = Tkinter.Tk()
text = Tkinter.StringVar()
Tkinter.Label(app, textvariable = text).pack()
def looper():
        count = 0
        while 1:
                text.set(`count`)
                count+=1
thread.start_new_thread(looper, ())
Tkinter.Button(app, text="exit", command = sys.exit).pack()
app.mainloop()
##############

-----------------------

If anyone has any hints or suggestions for workarounds for either of the above
problems, it would be much appreciated. Or if you just run any of the test
programs on your systems and get different results than I predicted for you,
tell me some things about your system and what happened.

-Mike Haimes

From klappnase at web.de  Thu Sep 21 22:46:53 2006
From: klappnase at web.de (Michael Lange)
Date: Thu, 21 Sep 2006 22:46:53 +0200
Subject: [Tkinter-discuss] Tkinter, threads? memory?
In-Reply-To: <20060920122747.vco8o18m4c48cswg@webmail.mit.edu>
References: <20060920122747.vco8o18m4c48cswg@webmail.mit.edu>
Message-ID: <20060921224653.25e76f4d.klappnase@web.de>

On Wed, 20 Sep 2006 12:27:47 -0400
Michael M Haimes <mhaimes at MIT.EDU> wrote:


> ------------1----------
> Linux implementations of Python/Tkinter (the most current) seem to exhibit the
> problem, but not Sun/Solaris or Windows.
> 
> Essentially, I can't animate objects on a canvas without leaking memory at about
> 1Mb/s . I've tried 4 different methods, either deleting and redrawing objects,
> or just moving objects, and either using Tk tags to label and operate the
> objects, or storing their IDs in my program and operating with them that way. I
> can't think of any other way to do this, and I basically need to. I would try
> the WCK to make my own, but the idea is to have the software run on a base
> install of Python.
> 
> The link to the four example test scripts I wrote up is here:
> http://web.mit.edu/mhaimes/Public/tktest.tar
> 
> ------------2----------
> The Mac OS X implementation of Python seems to exhibit this problem, and no
> other systems.
> 
> This problem is related to the above, namely, on the Mac animation seems to be
> totally broken. Whenever Tk is running its event loop, it stops all other
> python threads from processing and sits and waits for input. So my example code
> below runs a counter in a background thread which increments the number Tk has
> displayed. On Windows/Linux, it just counts up until you press exit. On the
> Mac, it will sit there and freeze if you aren't inputting anything, but as soon
> as you wave the mouse around or start typing it'll continue to increment;
> whereas on Windows and Linux, the counter just counts up no matter what you are
> inputting. I know this could be done without two separate threads, but the real
> program that this is modelling an issue I'm having needs Tk to be in its event
> loop, so that is not an option.
> 
> Test code as follows:
> #################
> import Tkinter
> import thread
> import sys
> 
> app = Tkinter.Tk()
> text = Tkinter.StringVar()
> Tkinter.Label(app, textvariable = text).pack()
> def looper():
>         count = 0
>         while 1:
>                 text.set(`count`)
>                 count+=1
> thread.start_new_thread(looper, ())
> Tkinter.Button(app, text="exit", command = sys.exit).pack()
> app.mainloop()
> ##############
> 
> -----------------------
> 
> If anyone has any hints or suggestions for workarounds for either of the above
> problems, it would be much appreciated. Or if you just run any of the test
> programs on your systems and get different results than I predicted for you,
> tell me some things about your system and what happened.
> 

Hi Michael,

for me (on linux) #2 works, on all examples of #1 i get this error:

Unhandled exception in thread started by <function mover at 0xb7dbf684>
Traceback (most recent call last):
  File "projekte/test2.py", line 18, in mover
    canvas.move(dot, -100*sin(t)*dt, 100*cos(t)*dt)
  File "/usr/lib/python2.4/lib-tk/Tkinter.py", line 2189, in move
    self.tk.call((self._w, 'move') + args)
_tkinter.TclError: too many nested evaluations (infinite loop?)

Generally I don't think it is a good idea to update Tk widgets directly from
Python threads. I think you better create some variable to manage the communication
between Tk and your child thread, as in this example which does practcally the same
as #2:

import Tkinter
import thread
import sys

app = Tkinter.Tk()
text = Tkinter.StringVar()
Tkinter.Label(app, textvariable = text).pack()
newtext = '0'
def looper():
        global newtext
        count = 0
        while 1:
                #text.set(`count`)
                newtext = str(count)
                count+=1
thread.start_new_thread(looper, ())
Tkinter.Button(app, text="exit", command = sys.exit).pack()

def update_label():
    text.set(newtext)
    app.after(10, update_label)
update_label()

app.mainloop()

And a working animation as in #1 with the same technique:

import Tkinter
from time import time, sleep
from math import sin, cos
from thread import start_new_thread
import sys

app = Tkinter.Tk()
canvas = Tkinter.Canvas(app, width=300, height=300)
canvas.pack()
t = time()
dot = canvas.create_oval(100*cos(t)+150, 100*sin(t)+150, 100*cos(t)+150, 100*sin(t)+150)

x, y = 0, 0
def mover():
    global x, y
    t = time()
    try:
        while 1:
            dt = time()-t;t=time()
            #canvas.move(dot, -100*sin(t)*dt, 100*cos(t)*dt)
            x, y = -100*sin(t)*dt, 100*cos(t)*dt
            sleep(0.1)
    except KeyboardInterrupt:
        sys.exit(-1)
start_new_thread(mover, ())

def update_oval():
    canvas.move(dot, x, y)
    canvas.after(100, update_oval)
update_oval()

app.mainloop()

I hope this helps

Michael