int
main(int argc, char *argv[])
{
cef_main_args_t args = { .argc = argc, .argv = argv };
cef_app_t *app;
cef_settings_t settings;
cef_window_info_t window_info = {0};
cef_client_t *client;
cef_browser_settings_t browser_settings;
int ex;
app = CEF_NEW(cef_app_t);
cef_addref(app);
ex = cef_execute_process(&args, app, NULL);
if (ex >= 0)
return ex;
memset(&settings, 0, sizeof(cef_settings_t));
memset(&browser_settings, 0, sizeof(cef_browser_settings_t));
settings.size = sizeof(cef_settings_t);
settings.windowless_rendering_enabled = 0;
browser_settings.size = sizeof(cef_browser_settings_t);
if (!cef_initialize(&args, &settings, app, NULL))
return -1;
window_info.width = 640;
window_info.height = 480;
client = CEF_NEW(cef_client_t);
client->get_life_span_handler = client_life_span_handler_get;
window_info.windowless_rendering_enabled = 0;
int main(int argc, char** argv) {
// This executable is called many times, because it
// is also used for subprocesses. Let's print args
// so we can differentiate between main process and
// subprocesses. If one of the first args is for
// example "--type=renderer" then it means that
// this is a Renderer process. There may be more
// subprocesses like GPU (--type=gpu-process) and
// others. On Linux there are also special Zygote
// processes.
printf("\nProcess args: ");
if (argc == 1) {
printf("none (Main process)");
} else {
for (int i = 1; i < argc; i++) {
if (strlen(argv[i]) > 128)
printf("... ");
else
printf("%s ", argv[i]);
}
}
printf("\n\n");
// CEF version
if (argc == 0) {
printf("CEF version: %s\n", CEF_VERSION);
}
// Main args
cef_main_args_t main_args = {};
main_args.instance = GetModuleHandle(NULL);
// Cef app
cef_app_t app = {};
initialize_cef_app(&app);
// Execute subprocesses. It is also possible to have
// a separate executable for subprocesses by setting
// cef_settings_t.browser_subprocess_path. In such
// case cef_execute_process should not be called here.
printf("cef_execute_process, argc=%d\n", argc);
int code = cef_execute_process(&main_args, &app, NULL);
if (code >= 0) {
_exit(code);
}
// Application settings. It is mandatory to set the
// "size" member.
cef_settings_t settings = {};
settings.size = sizeof(cef_settings_t);
settings.log_severity = LOGSEVERITY_WARNING; // Show only warnings/errors
settings.no_sandbox = 1;
// Initialize CEF
printf("cef_initialize\n");
cef_initialize(&main_args, &settings, &app, NULL);
// Window info
cef_window_info_t window_info = {};
window_info.style = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN \
| WS_CLIPSIBLINGS | WS_VISIBLE;
window_info.parent_window = NULL;
window_info.x = CW_USEDEFAULT;
window_info.y = CW_USEDEFAULT;
window_info.width = CW_USEDEFAULT;
window_info.height = CW_USEDEFAULT;
// Window info - window title
char window_name[] = "cefcapi example";
cef_string_t cef_window_name = {};
cef_string_utf8_to_utf16(window_name, strlen(window_name),
&cef_window_name);
window_info.window_name = cef_window_name;
// Initial url
char url[] = "https://www.google.com/ncr";
cef_string_t cef_url = {};
cef_string_utf8_to_utf16(url, strlen(url), &cef_url);
// Browser settings. It is mandatory to set the
// "size" member.
cef_browser_settings_t browser_settings = {};
browser_settings.size = sizeof(cef_browser_settings_t);
// Client handlers
cef_client_t client = {};
initialize_cef_client(&client);
initialize_cef_life_span_handler(&g_life_span_handler);
// Create browser asynchronously. There is also a
// synchronous version of this function available.
printf("cef_browser_host_create_browser\n");
cef_browser_host_create_browser(&window_info, &client, &cef_url,
&browser_settings, NULL);
// Message loop. There is also cef_do_message_loop_work()
// that allow for integrating with existing message loops.
// On Windows for best performance you should set
// cef_settings_t.multi_threaded_message_loop to true.
// Note however that when you do that CEF UI thread is no
// more application main thread and using CEF API is more
// difficult and require using functions like cef_post_task
// for running tasks on CEF UI thread.
printf("cef_run_message_loop\n");
cef_run_message_loop();
// Shutdown CEF
printf("cef_shutdown\n");
cef_shutdown();
return 0;
}
int main(int argc, char** argv) {
// Main args.
cef_main_args_t mainArgs = {};
mainArgs.instance = GetModuleHandle(NULL);
// Application handler and its callbacks.
// cef_app_t structure must be filled. It must implement
// reference counting. You cannot pass a structure
// initialized with zeroes.
cef_app_t app = {};
initialize_app_handler(&app);
// Execute subprocesses.
printf("cef_execute_process, argc=%d\n", argc);
int code = cef_execute_process(&mainArgs, &app, NULL);
if (code >= 0) {
_exit(code);
}
// Application settings.
// It is mandatory to set the "size" member.
cef_settings_t settings = {};
settings.size = sizeof(cef_settings_t);
settings.no_sandbox = 1;
// Initialize CEF.
printf("cef_initialize\n");
cef_initialize(&mainArgs, &settings, &app, NULL);
// Create GTK window. You can pass a NULL handle
// to CEF and then it will create a window of its own.
//initialize_gtk();
//GtkWidget* hwnd = create_gtk_window("cefcapi example", 1024, 768);
//cef_window_info_t windowInfo = {};
//windowInfo.parent_widget = hwnd;
cef_window_info_t windowInfo = {};
windowInfo.style = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN \
| WS_CLIPSIBLINGS | WS_VISIBLE;
windowInfo.parent_window = NULL;
windowInfo.x = CW_USEDEFAULT;
windowInfo.y = CW_USEDEFAULT;
windowInfo.width = CW_USEDEFAULT;
windowInfo.height = CW_USEDEFAULT;
// Initial url.
char cwd[1024] = "";
if (getcwd(cwd, sizeof(cwd)) == '\0') {
printf("ERROR: getcwd() failed\n");
}
char url[1024];
snprintf(url, sizeof(url), "file://%s/example.html", cwd);
// There is no _cef_string_t type.
cef_string_t cefUrl = {};
cef_string_utf8_to_utf16(url, strlen(url), &cefUrl);
// Browser settings.
// It is mandatory to set the "size" member.
cef_browser_settings_t browserSettings = {};
browserSettings.size = sizeof(cef_browser_settings_t);
// Client handler and its callbacks.
// cef_client_t structure must be filled. It must implement
// reference counting. You cannot pass a structure
// initialized with zeroes.
cef_client_t client = {};
initialize_client_handler(&client);
// Create browser.
printf("cef_browser_host_create_browser\n");
cef_browser_host_create_browser(&windowInfo, &client, &cefUrl,
&browserSettings, NULL);
// Message loop.
printf("cef_run_message_loop\n");
cef_run_message_loop();
// Shutdown CEF.
printf("cef_shutdown\n");
cef_shutdown();
return 0;
}
