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| author | Håkon Flatval <hkon20@hotmail.com> | 2022-01-29 16:13:06 +0100 |
|---|---|---|
| committer | Po Lu <luangruo@yahoo.com> | 2022-01-30 08:38:32 +0800 |
| commit | b944841173f12134e4c68d269d5b82b1820b2a40 (patch) | |
| tree | 2b6e67f274027b2e608bf1624a92cc80159b8be7 /src/frame.h | |
| parent | 35cd9197fc3bda7576b3c343d1183360067dccd2 (diff) | |
| download | emacs-b944841173f12134e4c68d269d5b82b1820b2a40.tar.gz | |
Add background transparency support for GTK+Cairo
Diffstat (limited to 'src/frame.h')
| -rw-r--r-- | src/frame.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/frame.h b/src/frame.h index cb2f58e2611..5d5f2122fbb 100644 --- a/src/frame.h +++ b/src/frame.h @@ -637,6 +637,9 @@ struct frame Negative values mean not to change alpha. */ double alpha[2]; + /* Background opacity */ + double alpha_background; + /* Exponent for gamma correction of colors. 1/(VIEWING_GAMMA * SCREEN_GAMMA) where viewing_gamma is 0.4545 and SCREEN_GAMMA is a frame parameter. 0 means don't do gamma correction. */ @@ -1669,6 +1672,7 @@ extern void gui_set_scroll_bar_height (struct frame *, Lisp_Object, Lisp_Object) extern long gui_figure_window_size (struct frame *, Lisp_Object, bool, bool); extern void gui_set_alpha (struct frame *, Lisp_Object, Lisp_Object); +extern void gui_set_alpha_background (struct frame *, Lisp_Object, Lisp_Object); extern void gui_set_no_special_glyphs (struct frame *, Lisp_Object, Lisp_Object); extern void validate_x_resource_name (void); |