Incompatible pointer type for GFile [-Wincompatible-pointer-types]

Question

I am trying to use css in a GTK c project. To load the file, I have

GFile *myCssFile = "mystyle.css";

The warning comes from compiling with Gtk+-3.0. I'm using

pkg-config --cflags gtk+-3.0

In addition I get warning

warning: passing argument 1 of 'g_file_new_for_path' from incompatible pointer type[-Wincompatible-pointer-types]

This warning comes from :

gtk_css_provider_load_from_file(provider, g_file_new_for_path(myCssFile), &error); where provider is defined: GtkCssProvider *provider;

I'm using Geany for my project.

None of my CSS statements have any effect.

Any thoughts? I'm not very fluent with CSS nor with Linux on Raspberry Pi. I feel fairly confident with programming in C though.

liberforce · Accepted Answer · 2019-02-14 13:33:56Z

1

passing argument 1 of 'g_file_new_for_path' from incompatible pointer type

The warning is about the first argument of g_file_new_for_path, which is myCssFile, and that you defined this way:

GFile *myCssFile = "mystyle.css";

The problem is that is that a GFile is not a simple file path, it's an object representing a file/directory that can be manipulated. In other words, you first need to create a GFile object from a path using g_file_new_for_path.

answered Feb 14, 2019 at 13:33

liberforce

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