Re: Horiz motion: What is faster/better than redrawing pic moved 1 pixel to left 100x?

2002-01-29 Thread John . Cupitt
Paul Davis wrote: >>- use gtkcanvas >> >> high level OO canvas widget will do all the work >> for you ... it won't be the quickest thing ever >> though, since the compositing work is >> done on the application side (I think) >> > > actually, this is what makes the canvas *faster*, not slower

Re: Re : Re: Send signal?

2002-01-29 Thread John . Cupitt
Yes :-) try gtk_editable_paste_clipboard() John Vahid Zahiri wrote: > Hi John > > I want get a selected text in other running > application, > by send button3 click to my entry widget :) > are you know better way? > > thanks in advance > Vahid > > --- [EMAIL PROTECTED] wrote:

Re: Send signal?

2002-01-29 Thread John . Cupitt
Vahid Zahiri wrote: > I want send a click signal to a widget, > is it possible? It is difficult to make synthetic events which work reliably, and you are not allowed to emit other widget's signals, so I think this is probably impossible. Why do you want to do this? Maybe there is another w

Re: Help on gtk+

2002-01-29 Thread John . Cupitt
sona krithi wrote: > We find it difficult to interface a linux > shell program with gtk.How to use LINUX commands in > gtk. Hi, have you tried using system()? John == Coming soon: Aelbert Cuyp 13 February - 12 May 2002 For

Re: Is there a "plot/graph widget" to help scientist do an xy plot?

2002-01-29 Thread John . Cupitt
There's also guppi: http://www.gnome.org/projects/guppi/ David Eduardo Gomez Noguera wrote: > why dont you make a pipe to gnuplot or some of those? > > also, ask them if bonobo could be used to have that plotted to a widget, or if you can use their source in any way to get that. > > On Sat, 26

Re: How add text above a scrollbar/GTKHScale widget?? w/ a NEW widget? Which?

2002-01-29 Thread John . Cupitt
Chris Seberino wrote: > When you have a scroll bar or GTKHScale how do you > add text above it to name/explain it? Do you > add a new widget? Which one? Put a GtkLabel left/right/above/below/whatever. John == Coming soon: Aelbert C

Re: Horiz motion: What is faster/better than redrawing pic moved 1 pixel to left 100x?

2002-01-29 Thread John . Cupitt
Chris Seberino wrote: > Suppose I want to simulate a picture moving > across a widget/pixmap. I *could* erase it and > redraw it moving it 1 pixel at a time. > > but... > > is there a better/faster way to simulate movement > regarding a picture??? Hi Chris, there are many, many technique

Re: about button's problem......

2002-01-22 Thread John . Cupitt
¶À¼y Kason Huang wrote: > hi John: > Thanks for your help! > before i received your mail,i was thinking in the gtk source codes how to do with the problem. > maybe i could get help from the source codes. > I find in the gtk source code gtk_button_class_init() calls gtk_signal_new("enter".

Re: Icon for Application?

2002-01-22 Thread John . Cupitt
Vahid Zahiri wrote: > When i make a application, > how can set icon for my window? Hi, you want gdk_window_set_icon(). John == Coming soon: Aelbert Cuyp 13 February - 12 May 2002 For information and tickets: http://www.nationalg

Re: about button's problem......

2002-01-22 Thread John . Cupitt
¶À¼y Kason Huang wrote: > now i want to do:my condition is being no mouse,the only terminal controlling tool is the keyboard.(i am doing a STB project.). when a button get focus(with keyboard) , setting the button's background to be a color. then when the button lost focus,setting the button

Re: gtk_file_selection_new

2002-01-21 Thread John . Cupitt
Chip Rodden wrote: > I'm trying to modify a gtk program which uses a file selection > widget.(gtk_file_selection_new) I have maybe 3 hours of experience > looking at gtk code so I'm fairly clueless. What I am trying to do is > to limit the user to just one directory where he can open from or

Re: GtkText patch code

2002-01-21 Thread John . Cupitt
Hellenthal wrote: > I'm using wxGTK-2.2.9 and gtk+-1.2.10 in a project over here and have a logging > window for which wxWindows uses the GtkText widget. Unfortunatly it has no > horizontal scrollbar. I can adapt the wxWindows code to show a horizontal > scrollbar but it doesn't work. GtkText

Re: creating a pixmap from grey values

2002-01-16 Thread John . Cupitt
Randy Rueckner wrote: > i have an array with 256x256 8-bit grey values and want to put this image > in a gtk drawable. there is no problem with gdk_draw_grey_image(), but the > x-server and my program runs on two different computers. > if i move the output-window on the screen, i must redraw it

Re: Timer ?

2002-01-10 Thread John . Cupitt
Vahid Zahiri wrote: > I want run a function per 10 minute? > How can i do this? Hi, try: http://developer.gnome.org/doc/API/gtk/gtk-general.html#GTK-TIMEOUT-ADD == Renaissance Autumn at the National Gallery A season of exhibitions

Re: size-request

2002-01-10 Thread John . Cupitt
Jamie Guinan wrote: > 1. I connect to "size-request", and pass my preferred initial size the >first time (the GtkDrawingArea is created that size), then >{0,0} every successive time, which allows the window to be >sized down. > > 2. I connect to "size-allocate", and scale/crop the

Re: Loading JPG images from memory

2002-01-08 Thread John . Cupitt
David Emory Watson wrote: > I am trying to create a pixbuf from a jpg file stored in memory. If I > am reading the gtk-pixbuf documentation correctly, this is currently not > supported. Is this possible with gtk-pixbuf from cvs, libjpeg, or will > I have to resort to saving the file to disk? A

Re: Show A pic on window?

2002-01-04 Thread John . Cupitt
vahid zahiri wrote: > I want show a picture (like .png or .jpg or orther) > on program window. > How can i do this? There's a FAQ on this too: http://www.gtk.org/faq/#AEN654 You'll need to use libjpeg/libtiff/libpng/whatever to load the image into memory. You could try imlib or gdk-pixb

Re: Label background color.

2002-01-04 Thread John . Cupitt
vahid zahiri wrote: > I can't change background color of Label. > i change "style->bg". > how can i change it? Hi Vahid, there's a FAQ about this: http://www.gtk.org/faq/#AEN780 John == Renaissance Autumn at the National Gallery

Re: problems in showing a widget

2002-01-04 Thread John . Cupitt
Jyothi wrote: > I am facing problems while showing a widget. I have a window in which I > pack Some label widgets, entry widgets and also Text widgets. When I say > gtk_widget_show_all( GTK_WIDGET( Window ) ), I get a segmentation fault. > When I debug and see , I get an error in gtk_widget_show

Re: Regarding Displaying pixmap

2002-01-03 Thread John . Cupitt
Jyothi wrote: > I have a problem in displaying the drawing area. I create a window and > in that I create a Drawing area and put it in a box and then In that > Drawing area I am drawing some rectangles . > Finally I call gtk_widget_show_all( > GTK_WIDGET( Window ) ). Only the Window is coming up

Re: how to change mouse cursor

2002-01-03 Thread John . Cupitt
neeraj sharma wrote: > How can > I change my mouse pointer when it is over a button and > how when an application is opened.One more thing In > gtk can we find out if an application is running or > not. You need to use a gdk_cursor. Something like: GdkCursor *cursor = gdk_cursor_new( GDK_TO

Re: glib, flex and bison

2002-01-02 Thread John . Cupitt
Peter Jay Salzman wrote: > currently, my code is kind of ugly because i need to convert back and > forth between standard and glib data types. i'm using flex/bison to > handle user input (i'm a flex/bison newbie). basically, yytext is put > into a union depending on the data type: > >%unio

Re: Problem with callback functions...

2001-12-19 Thread John . Cupitt
James Vanns wrote: > Okay. I have a function called create_toogle_window (). Within this function > I have a few GtkWidgets initiated as GtkToggleButtons (3 of) and then one OK > button. > > I have also a struct defined as within a header file: > > typedef struct _options { >gboolean bss; >

Re: Can I mix Xlib and Gtk+ in one app?

2001-12-19 Thread John . Cupitt
I'm writing an app using xlib, but I need some buttons and menus. I've done this a little. It's dangerous, unsupported and will probably break if gtk/gdk changes much, but it does sort-of work. - to keep gtk happy, you must do this several times a second: while( g_main_iteration( FA

Re: need raster image examples

2001-12-18 Thread John . Cupitt
Wolfgang Rupprecht wrote: > I need to find a way to efficiently display a small subsection of a > very large (50 megapixel or more) 8-bit graymap. Hi Wolfgang, You have lots of choices. The lowest level is gdk_draw_grey_image(): this paints a section of a large image onto a section of the scr

Re: application open problem

2001-12-18 Thread John . Cupitt
neeraj sharma wrote: > I am working on gtk and I want to run an already > created application from my program on button click. Hi Neeraj, can't you just use system()? static void my_click_handler( GtkWidget *button, gpointer client ) { system( "xterm &" ); } John ===

Re: A question on signals

2001-12-18 Thread John . Cupitt
Andrej Prsa wrote: > I have a bunch of widgets locally declared. One of them is a spin button, which I use to set/unset the sensitivity of 100 other widgets. Thus I use "changed" signal to invoke my sensitivity set/unset routine. How do I pass names of those 100 widgets to that routine? I really

Re: Geting an drawing area to recieve key events

2001-12-13 Thread John . Cupitt
Nuno Afonso wrote: > On Wed, 2001-12-12 at 00:53, Norman Black wrote: > does anyone know how to make an drawing area to recieve the key events? >>>gtk_widget_set_events(area, GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK) >>> >>You also need to make sure it has the GTK_CAN_FOCUS flags. >> >

Re: logarithmic HScale widget

2001-12-12 Thread John . Cupitt
Stefan Doehla wrote: > I'm stuck in a little problem with my sliders ... > I'm writing a oscilloscope and need a slider with > values on a log-scale (or something similar). Hi Stefan, I did a little slider class for my app. It's a slider with no label, with a text box (GtkEntry) next to it. I

Re: signal for gtk_entry

2001-11-30 Thread John . Cupitt
Hi Troy, http://developer.gnome.org/doc/API/gtk/gtkeditable.html in the signals section, near the bottom of the page. John Troy Heber wrote: > Thank you activate is exactly what I was looking for. Can you point me to > where the is documented, so I can avoid having to bother the list with su

Re: Creating an image from data

2001-11-24 Thread John . Cupitt
Andreas Schiffler wrote: > I am trying to figure out how to create an image widget that can be > embedded in a popup window. > > I am starting from a 32bit RGBA data array (which is in fact a 32bit > SDL_surface's pixel data). Hi Andreas, is this gtk 1.2? As far as I know, the easiest way is

Re: gtk_ctree_insert_node - why so slow?

2001-11-19 Thread John Cupitt
Olaf Frączyk wrote: > On 2001.11.15 13:50:54 +0100 John Cupitt wrote: > >> Hi Olaf, could you post a test program that shows this bad behaviour? >> It'll save us each making one :-) >> >> (maybe you have auto_sort turned on? turn it off, insert 6000 times,

Re: gtk_ctree_insert_node - why so slow?

2001-11-15 Thread John Cupitt
Olaf Frączyk wrote: > On 2001.11.14 17:04:04 +0100 Olaf Frączyk wrote: >> As I found inserting 6000 nodes takes 4.5 second (+/- 100 msec) on >> Celeron 466 with no load. > > Oh, I found whats happening. If sibling == NULL this takes so much time. > If sibling != NULL it takes 0.065 second. > >

Re: GDK colors

2001-11-14 Thread John Cupitt
Zielinski Zbigniew wrote: > Hi! > How to increase number of colors in GDK. J have only 64 colors. Hiya, you could try gdk_rgb_set_min_colors( 128 ), it sometimes helps (depends a bit on your version of gtk). John ___ gtk-list mailing list [EMAIL

Re: Problem with DrawingArea, Rulers and ViewPort

2001-11-09 Thread John Cupitt
Jean-Christophe Berthon wrote: > I would like to do a kind of graphical application with a DrawingArea, > rulers and scrollbar. And I'm stuck with the management of the rulers and > the scrollbar together. Hi Jean-Christophe, make a 3 x 3 table, put the viewport (with the drawing area inside)

Re: dynamically building option menu

2001-11-09 Thread John Cupitt
Thomas J Lewis wrote: > how can an option menu be dynamically rebuilt? > > basically need to find out how many items currently are on the list, > delete those items then rebuild the list. Hi Thomas, you can do this just by setting a new menu ... when you call gtk_option_set_menu(), it'll unre

Re: List Item Background?

2001-11-01 Thread John Cupitt
Evan Van Dyke wrote: > Evan Van Dyke wrote: > >> I am working on an application where I wish the background color >> for a GtkListItem to be different from the background color of the >> GtkList. I have tried setting the bg/base fields of the GtkListItem >> but this doesn't appear to help. Nee

Re: changing a combo's popdown strings from select-list callback?

2001-10-30 Thread John Cupitt
Hi Skip, I don't know if this is still true for 1.3, but with gtk 1.2 you got a core if you removed the item with focus from a popup list. I worked around this by doing a gtk_widget_grab_focus() somewhere else before doing the delete. John Skip Montanaro wrote: > I can stimulate a segmentati

Re: Statically linked GTK app

2001-10-30 Thread John Cupitt
Hi Raymond, I think this happens because under Linux the dynamic linker does not work in statically linked executables. If you want to use dlopen()/dlsym()/etc. (these are the calls wrapped by gmodule on linux), you must, at a minimum, link dynamically against libc and libdl. I sort of remembe

Re: show the content of a dialog window

2001-10-26 Thread John Cupitt
[EMAIL PROTECTED] wrote: > I have made an application with Glade using GTK. The > GUI application loads a text application in a child > process. Both are communicating via pipes. > The standard input and output of the text application > are redirect in the pipes. > When this window appea

Re: gtkfileselection

2001-10-26 Thread John Cupitt
>>is it true that there is no way to tell a gtk file selection to refresh >>its directory contents (gtk 1.2.10)? >> > > double-clicking the . directory forces a refresh of the files > listed, but I'm not sure if there's a way to trigger this from > the application. Hi, you can force a refresh b

Re: HTML widget?

2001-10-24 Thread John Cupitt
Sanjay Bhatnagar wrote: > Is there a widget which would read an html file and display is > properly (with hotlinks etc.)? One with some help/doc/examples would > be most useful. I think gtkhtml does what you want: ftp://ftp.gnome.org/pub/GNOME/unstable/sources/gtkhtml ___

Re: Fw: Another asks about the CList EXTENDED selection

2001-10-24 Thread John Cupitt
Jean-Christophe Berthon wrote: > >>>> I want to use the EXTENDED selection mode of the CList to allow the >>>> user to select multiple row using primarirly the control and shift >>>> key... The problem is that in the documentation it is precise that >>>> the field selection of t

Re: segfault problem.

2001-10-24 Thread John Cupitt
HaB JacKaL wrote: > I have checked and double checked all my declarations. I finally ran it > through gdb, which reported the following error: > > Program received signal SIGSEGV, Segmentation fault. > 0x4015d8a8 in gtk_type_check_object_cast () at eval.c:41 > 41 eval.c: No such file or d

Re: Fw: g_log () Non fatal warning

2001-10-24 Thread John Cupitt
Hi Jean-Christophe, Unfortunately I don't think this is possible. You can use g_log_set_fatal_mask() to say which sorts of errors are fatal, but G_LOG_LEVEL_ERROR is always set fatal whatever you do. I think this was decided because for a GUI library, it's very hard to recover reliably from o

Re: pop up menu right clicking on a tree item

2001-10-17 Thread John Cupitt
of gtk_create_ctree). > can you help me in thiz case? > more, i'm working with gtk 1.2 (not 2.0) > > John Cupitt wrote: > > > Giovanni Masullo wrote: > > > can anyone tell me how i can capture the mouse > > > right click on a tree item? > > > i w

Re: pop up menu right clicking on a tree item

2001-10-17 Thread John Cupitt
Giovanni Masullo wrote: > can anyone tell me how i can capture the mouse > right click on a tree item? > i would like to do that to putting up a popup menu > related to that item. Hi Giovanni, for CTree (I guess you are using this?) attach to the "event" signal, use gtk_clist_get_selection_info()

Re: bitmap buttons

2001-10-15 Thread John Cupitt
Paul Davis wrote: > >> Related question... If I add a 10x10 pixel wide pixmap to a button, will > >> the button request a size of 10x10 or is there some implicit border? Just > >> in case, hypothetically I wanted to tile a region with buttons containing > >> pixmaps... ;-) > > > >Hi Skip, no, I

Re: A few questions

2001-10-15 Thread John Cupitt
Remco Poelstra wrote: > What's the differences between all the gtk-engines that come with my > distribution? > And how can I use them? You make a file in your home area called ".gtkrc", and add a line like: #include "/usr/local/share/themes/Metal/gtk/gtkrc" AFAIK, the theme swapping pan

Re: GdkWindow & GtkWindow

2001-10-15 Thread John Cupitt
Farhan Chaudhary wrote: > Can anyone plz tell me the difference between GdkWindow & GtkWindow? OK, I'll have a go :-) GTK comes in two main layers. GDK is the drawing kit ... it has functions to draw lines, paint characters, and reserve areas of the screen for applications. A reserved area of

Re: bitmap buttons

2001-10-15 Thread John Cupitt
Skip Montanaro wrote: > John> It's easy :-) make a button with gtk_button_new(), then add a > John> gtk_pixmap to it with gtk_container_add(). > > Related question... If I add a 10x10 pixel wide pixmap to a button, will > the button request a size of 10x10 or is there some implicit borde

Re: bitmap buttons

2001-10-12 Thread John Cupitt
Louis Lu wrote: > Is there anyone who have used(created) a bitmap button > before? Could someone teach me how to do it? or related > information. Thanks in advance It's easy :-) make a button with gtk_button_new(), then add a gtk_pixmap to it with gtk_container_add(). John _

Re: instantly showing a widget

2001-10-12 Thread John Cupitt
Marco Lettere wrote: > I would like to show an already created widget in a handler of a "changed" > event related to another widget. This clearly doesn't work until I somehow > force gtk to redraw. But how do I obtain this? Hi Marco, you need to get gtk's drawing handler running. Take a look at t

Re: hot-key control

2001-10-09 Thread John Cupitt
Louis Lu wrote: > I have done a program and created a icon link to this program > on Xwindows desktop. I just want to know whether or > not there is a way (in gtk and gnome)that can add a hot-key > in the program, so later on, I can use the hot-key to execute > this program instead of using m

Re: Widget in a clist ?

2001-09-28 Thread John Cupitt
Charles Waldman wrote: > I am working on an application where it would be really nice to be > able to put a button widget inside of a clist or ctree cell. Hi Charles, ctree/clist is being replaced in the upcoming (a few months away?) gtk-2.0, so I don't think anyone will work any more on the old

Re: Active widgets

2001-09-27 Thread John Cupitt
Don't listen to any of them :-) If you want to change the behaviour of progress bar significantly, I think it's best to wrap it up as a new widget. GTK makes building widgets very easy (at least, easier than many other toolkits), plus if you end up with something useful, it's then very easy to re

Re: How to oblige Gtk to redraw the window

2001-09-20 Thread John Cupitt
"[EMAIL PROTECTED]" wrote: > I have a progressbar in my gtk window. In a loop > while, I increase the progression of the bar and i > write gtk_widget_show_all(GTK_PROGRESS(bar), pos). > But Gtk doesn't redraw the window. I would like to > know if there exists a function to do that. Hi Arno, there

Re: Transparent GTK window

2001-09-19 Thread John Cupitt
"[EMAIL PROTECTED]" wrote: > Please have you any idea how to have a transparent window withe some labels? Hi, do you mean like MacOS X? Basic X (and hence GTK) does not do transparent windows unfortunately :-( This may change in a year or two ... there's a new X thing on the way (Xrender) that ad

Re: Proper size for an OptionMenu

2001-09-19 Thread John Cupitt
Felix Braun wrote: > I'm having problems getting an OptionMenu to take the right size, i.e. in > a way that its children are displayed properly. Hi Felix, you need to show the menu pane to get it to size correctly. Add gtk_widget_show_all(menu); just after your last gtk_menu_append().

Re: How to overgive a gtk-widget a funktion?

2001-09-19 Thread John Cupitt
Elfriede Eisserer wrote: > How can I overgive a gtk-widget or Object to an funktion? Hi Elfriede, you can just pass a pointer to the widget. There's a spin button example in the gtk tutorial: http://www.gtk.org/tutorial/sec-spinbuttons.html John ___

Re: finding memory leaks

2001-09-18 Thread John Cupitt
Jim Edwards wrote: > I´m trying to chase memory leaks in a farily large program. I´ve tried > memprof but for whatever reason it doesn´t work, so I´m using mtrace. Hi Jim, memprof is great, it'll tell you exactly what you want to know. How exactly are you running it? What is not working? It's be

Re: Custom Signals

2001-09-18 Thread John Cupitt
Ecmel Ercan wrote: > I am working on a GTK+ program with a tabbed interface. Each tab can > display same or different kind of a container widget. It is like MDI. > > I have an Edit menu and this menu contains actions which are common to > all documents. The actions will be handled on a differe

Re: Cursor and Progressbar

2001-09-11 Thread John Cupitt
Filipe Bonjour wrote: > I have a "Connect" button, and in its callback for "clicked" I call > gdk_window_set_cursor(GDK_WATCH), then call another function to perform > some tasks, and when this returns I call > gdk_window_set_cursor(GDK_LEFT_PTR) to return to the normal cursor. What > I hoped woul

Re: GtkStyle Problem?

2001-07-27 Thread John Cupitt
mingd wrote: > Gtk style(gtkrc file) works on all the widgets in my programs, except > the "Fixed" widget. I tried to attach a bg_pixmap to a "Gtk::Fixed", but > it never worked. Can somebody tell me why? I think GtkFixed and GtkLayout simply don't support background pixmaps. I don't know if this

Re: How to disable"Close" menu/button on window globally within application

2001-07-27 Thread John Cupitt
Hi Robert, return FALSE from the delete_event signal on the window. Robert Bui wrote: > Does anyone knows how to disable the "CLOSE" on menu from window globally within >application? ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.or

Re: null parameter warning issue.

2001-07-25 Thread John Cupitt
David Robin wrote: > gtk_menu_popup( > GTK_MENU (context_menu), > GTK_WIDGET (NULL), // GtkWidget > *parent_menu_shell, > GTK_WIDGET (NULL), // GtkWidget > *parent_menu_item, > GTK_SIGNAL_FUNC(NULL), // not r

Re: Pixmap + Memory Problem

2001-07-19 Thread John Cupitt
Emanoel Guimaraes Martins Filho wrote: > I'm trying to use a big pixmap (640x480) to show some > estatistics, drawing rectangles and lines in the pixmap. The screen must be > update each 5 seconds. However, the consume of memory reaches the size of > the swap after some minutes and the program is

Re: GList and segmentation fault

2001-07-19 Thread John Cupitt
Mattias Persson wrote: > GList * files = NULL; > //nextfile is a string > files = g_list_append(files, nextfile); > > later on when a GtkList is created I try to add the > GList to it: > > gtk_list_append_items(list1, files); > > but that gives me a segmentation fault. I guess nextfile is bein

Re: efficient use of canvas lines

2001-07-17 Thread John Cupitt
Ian Britten wrote: > > For printing, I just output postscript and leave all the mess for the > > printer to deal with. As long as the user has a nice printer, you're > > fine ... > > Do you do this via the GDK interface, or to you do use a separate API? > I haven't seen a way to get GDK to output

Re: efficient use of canvas lines

2001-07-16 Thread John Cupitt
Ian Britten wrote: > It's a similar case with the gtkpixbuf: I tried using it once on a > relatively small arial photo (50M). After it crashed X and hard-locked > the machine, I didn't try that again... :-( > [ FYI - +200M images aren't out of the realm of possibility... ] I believe gdkpixbuf,

Re: How to change float to char

2001-07-16 Thread John Cupitt
Skip Montanaro wrote: > > Flavio> I need to print float numbers in a gtk label and this widget > Flavio> only accept gchar in your text parameter, I want to know if > Flavio> exists some type of routine that changes float number in format > Flavio> a.bcde to char format "a.bcde".

Re: Misc newbie stuff I can't work out

2001-07-13 Thread John Cupitt
Tom Morton wrote: > How do i get a GtkTable to contract when i hide() a row of stuff it contains? > It simply adds more space between the remaining rows (unless i resize the > window slightly, then it shrinks. can i make it do that myself?) This one I can help with: just do a gtk_widget_queue_res

Re: [Fwd: Technical reference for GTK_BUTTON() & GTK_BIN()]

2001-07-12 Thread John Cupitt
Flavio Alberto Lopes Soares wrote: > > I search in GTK reference manual for GTK_BUTTON() & GTK_BIN and > > GtkWidget structure for my study and I can't found any reference, > > somebody can say where I can find any reference for this ? Here's the GtkButton reference: http://developer.gno

Re: bash shell

2001-07-10 Thread John Cupitt
"G.Camozzi" wrote: > In gtk+ there is command like execlhow can i use a shell command > with GTK+? Hi, >From C, you can just use system(). This may limit your portability though :-) John ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gno

Re: Initial timestamps

2001-07-06 Thread John Cupitt
Owen Taylor wrote: > Tim Butler <[EMAIL PROTECTED]> writes: > > Can anyone give me pointers to some code that uses the function: > > gdk_input_motion_events() ? > > The normal place to get them would be from timestamps from > motion events. > > The idea is that you can get fine-grained history b

Re: A Question About Menus.

2001-07-05 Thread John Cupitt
ldx wrote: > How can I determine which menu item the mouse is pointing to? > When I move mouse on menu items, I want to print a message to the > statusbar to tell the user something about the pointed menu. Hi, connect to the "select" signal. gtk_signal_connect( GTK_OBJECT( menu_item ),

Re: FG: Help Me

2001-07-04 Thread John Cupitt
Linux Developer wrote: > 1) How can I change background >and foreground color >of label, button and columned list and >ofcourse other widgets. I have tried >the .rc file approach and some other >approaches but failed. There's a FAQ entry on this: http://www.gtk.org/f

Re: gtk_dawing_area_size...

2001-07-04 Thread John Cupitt
"Andrés Giraldo" wrote: > sorry! I didn't expose my question well. > > I add a drawing area as a container in a button > > gtk_container_add (GTK_CONTAINER (button), > drawing_area); > > Then I connect a expose_event signal to the > drawing_area, and finally I want to change the drawing > area

Re: Option Menu

2001-07-04 Thread John Cupitt
Ignacio Nodal wrote: > When creating a menu using radio items and showing all toggles with > "gtk_check_menu_item_set_show_toggle(GTK_CHECK_MENU_ITEM > (menu_item),TRUE)", how can I force a different menu item specified by > index to be selected? Hi Ignacio, I'm not sure you should be using radio

Re: gtk_drawing_area_size, gtk_widget_set_uposition

2001-07-04 Thread John Cupitt
"Andrés Giraldo" wrote: > After showing a drawing area widget: > gtk_widget_show (drawing_area); > can I adjust the drawing area size? > > gtk_drawing_area_size (GTK_DRAWING_AREA > (drawing_area), width, height); Hi Andrés, yes, this should work. Do you want the window enclosing the GtkDrawi

Re: Enable/Disable widgets

2001-07-03 Thread John Cupitt
on them... Hi Andrés, I think you need gtk_widget_set_sensitive(). > I'm trying to build a button using just a drawing area > and drawing it, but I would like to use a most natural > way to do it This will probably break (or look bad) with themes :-( why not use a standard button? John -

Re: pulldownmenu with check/radiobuttons

2001-07-03 Thread John Cupitt
Ignacio Nodal wrote: > How is the easiest way to create a pulldown menu which item is a list of > check or radiobuttons?? Hi Ignacio, testget.c does this, so you could just cut and paste sections of that. You can also do it with ItemFactory, there's a (rather skimpy) example in the tutorial. Jo

Re: Window's size

2001-07-03 Thread John Cupitt
Arno wrote: > I would like to know if it's possible to disable the resizing of a window. Hi Arno, you need gtk_window_set_policy(). John ___ gtk-list mailing list [EMAIL PROTECTED] http://mail.gnome.org/mailman/listinfo/gtk-list

Re: Problems with window position, virtual desktops and fonts

2001-07-02 Thread John Cupitt
Jan-Marek Glogowski wrote: > > > 3. Quick way to find the best font to fill an area > > > > I believe when you load a scaleable font, X prerenders all the glyphs in > > the font to bitmaps, ready to send to the display ... this is pretty > > slow (and used to lock the X server while it did it, tho

Re: Problems with window position, virtual desktops and fonts

2001-07-02 Thread John Cupitt
Jan-Marek Glogowski wrote: > 1. Positioning of windows Hi Jan, I use gdk_window_get_root_origin() and gtk_widget_set_uposition(). > 2. Show / Hide a window on the same virtual desktop Good question, but I can't help :-( > 3. Quick way to find the best font to fill an area > First I check if

Re: How to make menu insensitive

2001-06-28 Thread John Cupitt
Craig Emery wrote: > > After setting up the menu with the item factory I use > gtk_item_factory_get_widget () > to get the widget that's created with the path of the item I want. > > Then (if, say, it's a check-box item) you can call > > gtk_check_menu_item_set_active (...) > > might not be th

Re: Signals

2001-06-27 Thread John Cupitt
Filipe Bonjour wrote: > II have several drawing options, and I want to send the > GtkGlArea widget an expose event when the user changes any of these > options. Hi Filipe, I think you can just do: gtk_widget_queue_draw( widget ); This deals with all of the signal stuff for you. HTH, J

Re: stacking pixmaps

2001-06-27 Thread John Cupitt
Alexandre Mathy wrote: > I'm building an inteface for which I need stackable pixmaps.. > Now I have read that this can't be achieved using a gtk_pixmap, > and that I'd have to use Gdk stuff instead. > However, these pixmaps need to be able to recieve click events etc... I think the gtk_canvas wi

Re: render texts to a buffer/drawable

2001-06-26 Thread John Cupitt
Hi Ronald, Ronald Bultje wrote: > color.red = (guint16)(options->colors[0]*65535.0); > color.green = (guint16)(options->colors[1]*65535.0); > color.blue = (guint16)(options->colors[2]*65535.0); In my app, I use a 1 bit pixmap (bitmap), since every

Re: Signal help needed (gtk_signal_new?)

2001-06-25 Thread John Cupitt
"David J. Topper" wrote: > But even if I capture the relevant info for "changed" I can't use it to > create a new signal. The arguments for gtk_signal_new() are elusive to > me. I'd basically like to create something very similar to the > "value_changed" and "changed" signals, named "activate."

Re: render texts to a buffer/drawable

2001-06-25 Thread John Cupitt
Ronald Bultje wrote: > does Gtk or any other lib offer the option to render texts to a drawable > or a RGB-buffer (in the best case: a gdk-pixbuf)? In the best case, it > would work something like some_function(char *font, char *text) (font > being the font as provided by the gtk-font-selection-di

Re: memory map io function

2001-06-21 Thread John Cupitt
Louis Lu wrote: >I just wondering whether or not anyone who has the experiences on memory map io >function before? > > My code is as following: > int *base; > unsigned int fd; > fd = open("dev/mem", O_RDWR); > base = mmap(0, 0x8, PROT_READ|PROT_WRITE,MAP_SHARED, fd, 0xd80);

Re: Allocating a lot of colors

2001-06-21 Thread John Cupitt
Lokesh Setia wrote: > First of all, I will like to ask whether drawing_area widget with a > backing pixmap is the best choice for this? Hi Lokesh, the way to do this by hand is to use gdk_rgb_*(). Take a look at testrgb.c in the gtk source area. gdk_rgb_*() does all the horrible X stuff for y

Re: Getting widgets children

2001-06-20 Thread John Cupitt
Vicki Stanfield wrote: > I know that I can get the parent of a widget, but if I have only the > parent widget, can I get the children? I need to unrealize most of the > widgets to change the window. Hi, if it's a subclass of container, you can loop over widget->children. Something like: /* Set a

Re: Help!

2001-06-18 Thread John Cupitt
Sergio Arregui Ojeda wrote: > i have to develop a system that has to plot data that is acquired > trhough the serial port, i have done most of this part using > the realtime plot demo that comes with extragtk, but i have a problem > because it's a lot of data and my machine gets very busy > while

Re: glibconfig not find

2001-06-14 Thread John Cupitt
±è¿ëÀÏ(yong il.kim) wrote: > please help me!! I am beginner GTK+ programming. when i compiled > sample code(hello.c), there are error message > > usr/include/glib.h:66:glibconfig.h not being able to find glibconfig.h Hello, is this the example from the tutorial? http://www.gtk.org/tutor

Re: Argument passing / GTKTextView

2001-06-13 Thread John Cupitt
Raymond Wan wrote: > My GTK+ program is getting fairly large and until now, I've had > one big global variable structure that has all the information I need. I > was wondering if there is an alternative to this. Hi Raymond, there are lots of ways to fix this. One of the easiest is to ha

Re: examp. of simple graphic using Gdk

2001-06-11 Thread John Cupitt
dodi-nug wrote: > There is a lack of how to draw graphic using gdk. > so if you guys have an example to draw a simple x=y graphic, > please tell me. There's the scribble example in the tutorial: http://www.gtk.org/tutorial/ch-scribble.html For fancier GDK stuff, any source covering Xlib

Re: save as dialog...

2001-06-11 Thread John Cupitt
Lokesh Setia wrote: > o When the file selection widget is used in the context of "Save as", > the filename goes off as soon as the directory is changed. Is it a > bug in gtk+ 1.2? Or a feature that can be changed? It's a feature that can't be changed :-) Lots of people have done new filesel

Re: gtk_editable_get_chars=gtk_entry_get_text

2001-06-06 Thread John Cupitt
dodi-nug wrote: > i failed to get text from entry text's widget, it seem that > in gtk tutorial page(www.gtk.org/tutorial/sec-textentries.html) > doesn't work too. > i have tried gtk_editable_get_chars ( Mr. bowman's advise), > but i didn't work too. It should work. Try: char *txt = gtk_

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