How to change GtkWidget background in GTK3?

12,596

GTK+ 1.2

  GtkRcStyle *rc_style;
  GdkColor color;

  color.red = 65535;
  color.green = 0;
  color.blue = 0;

  rc_style = gtk_rc_style_new();

  rc_style->bg[GTK_STATE_NORMAL] = color;

  rc_style->color_flags[GTK_STATE_NORMAL] |= GTK_RC_BG;

  gtk_widget_modify_style (widget, rc_style);

  gtk_rc_style_unref (rc_style);

GTK+ 2.24

Using the GDK Library:

GtkWidget *widget; //your widget

  GdkColor color; 

  gdk_color_parse ("red", &color); //setting a color - you can also use RGB

  gtk_widget_modify_bg(widget, GTK_STATE_NORMAL, &color); //modifying the background color of the widget

Full reference about GdkColor can be found at GNOME'S Dev Documentation.

GTK 3.0

For gtk+3 you can use gtk_css_provider() .Full tutorials and examples can be found at the GTK+ Forums.

12,596

int_ua

I dream of a day when settings are written to disk only when changed and software does not freak out when $HOME is read-only.

Updated on September 18, 2022

Comments

int_ua over 1 year

I'm trying to use override_background_color on some GTK3 widgets but they still showing up with the default background color.
- Mendhak almost 12 years
  
  Can you post the code that you used in the end?
- int_ua almost 12 years
  
  I"ve dropped it because I didn't have the time. Will try it later.
int_ua almost 12 years

I've tried it first but in python there was no gdk.color_parse() function IIRC. Let me re-check...
dlin almost 12 years

i am not familiar with pygtk but you can take a look here pygtk.org/docs/pygtk/class-gdkcolor.html
int_ua almost 12 years

besides: Warning gtk_widget_modify_bg has been deprecated since version 3.0 and should not be used in newly-written code. Use gtk_widget_override_background_color() instead
dlin almost 12 years

im still using GTK+ 2.24.Can you edit your post with the code which you use to change the background color?that would help
dlin almost 12 years

additionally, what is the widget you are trying to modify?
dlin almost 12 years

I edited my answer with more information.
int_ua almost 12 years

adding the code...
erin c almost 3 years

gtk 3 forum link is broken