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Minor fix to section 3

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Editing for readability.
This commit is contained in:
Paul Schulz 2022-03-03 16:36:00 +10:30
parent ced4e0ce69
commit 6880bebac7
1 changed files with 12 additions and 10 deletions
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src/sec3.src.md
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@ -4,15 +4,17 @@
### GtkApplication and g\_application\_run ### GtkApplication and g\_application\_run
Usually people write a programming code to make an application. Usually people write programming code to make an application.
What are applications? What are applications?
Applications are software that runs using libraries, which includes OS, frameworks and so on. Applications are software that runs using libraries, which includes the
In Gtk4 programming, GtkApplication is an object that runs on Gtk libraries. OS, frameworks and so on.
In Gtk4 programming, the GtkApplication is a program (or executable) that runs
using Gtk libraries.
The basic way how to write GtkApplication is as follows. The basic way to write a GtkApplication is as follows.
- Creates a GtkApplication instance. - Create a GtkApplication instance.
- Runs the application. - Run the application.
That's all. That's all.
Very simple. Very simple.
@ -49,7 +51,7 @@ $ ./a.out
(a.out:13533): GLib-GIO-WARNING **: 15:30:17.449: Your application does not implement (a.out:13533): GLib-GIO-WARNING **: 15:30:17.449: Your application does not implement
g_application_activate() and has no handlers connected to the "activate" signal. g_application_activate() and has no handlers connected to the "activate" signal.
It should do one of these. It should do one of these.
$ $
~~~ ~~~
Oh, just an error message. Oh, just an error message.
@ -123,12 +125,12 @@ $ gcc `pkg-config --cflags gtk4` pr2.c `pkg-config --libs gtk4`
$ ./a.out $ ./a.out
GtkApplication is activated. GtkApplication is activated.
$ $
~~~ ~~~
OK, well done. OK, well done.
However, you may have noticed that it's painful to type such a long line to compile. However, you may have noticed that it's painful to type such a long line to compile.
It is a good idea to use shell script to solve this problem. It is a good idea to use shell script to solve this problem.
Make a text file which contains the following line. Make a text file which contains the following line.
~~~ ~~~
gcc `pkg-config --cflags gtk4` $1.c `pkg-config --libs gtk4` gcc `pkg-config --cflags gtk4` $1.c `pkg-config --libs gtk4`
@ -153,7 +155,7 @@ If this is the first time that you make a $HOME/bin directory and save a file in
$ comp pr2 $ comp pr2
$ ./a.out $ ./a.out
GtkApplication is activated. GtkApplication is activated.
$ $
~~~ ~~~
## GtkWindow and GtkApplicationWindow ## GtkWindow and GtkApplicationWindow