我正在尝试在GTK3中创建一个包含多个c文件的C程序。
我正在使用的模型: how-to-split-a-c-program-into-multiple-files 还有这个 example-0.c
我的程序如下所示:
#include "Functions.h"
#include <gtk/gtk.h>
#include "stdio.h"
static void activate (GtkApplication* app, gpointer user_data)
{
GtkWidget *window;
window = gtk_application_window_new (app);
gtk_window_set_title (GTK_WINDOW (window), "Window");
gtk_window_set_default_size (GTK_WINDOW (window), 200, 200);
gtk_widget_show_all (window);
}
#include <gtk/gtk.h>
#ifndef FUNCTIONS_H_INCLUDED
#define FUNCTIONS_H_INCLUDED
static void activate (GtkApplication* app, gpointer user_data);
#endif
#include "stdio.h"
#include <gtk/gtk.h>
#include "Functions.h"
int main(int argc, char **argv)
{
GtkApplication *app;
int status;
app = gtk_application_new ("org.gtk.example", G_APPLICATION_FLAGS_NONE);
g_signal_connect (app, "activate", G_CALLBACK (activate), NULL);
status = g_application_run (G_APPLICATION (app), argc, argv);
g_object_unref (app);
return status;
}
gcc -Wall `pkg-config --cflags gtk+-3.0` Functions.c Main.c `pkg-config --libs gtk+-3.0`
Functions.c:7:13: warning: ‘activate’ defined but not used [-Wunused-function]
static void activate (GtkApplication* app, gpointer user_data)
^
In file included from Main.c:4:0:
Functions.h:7:14: warning: ‘activate’ used but never defined
static void activate (GtkApplication* app, gpointer user_data);
^
/tmp/ccWzazr0.o: I funktionen "main":
Main.c:(.text+0x38): undefined reference to `activate'
collect2: error: ld returned 1 exit status
并且未编译!
答案 0 :(得分:1)
是的,GTK程序可以拆分成多个C文件。
您收到错误,因为您告诉编译器该函数仅在该单个C源文件中可见:
static void activate (GtkApplication* app, gpointer user_data)
如果要从其他源文件中使用该功能,则需要删除static
关键字。
既可以在头文件中也可以在C文件中删除它。