GTK+ Forums

alen121 · Familiar Face Joined: 28 Sep 2007 Posts: 25

look at the following codes

Code: (Plaintext)

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#include <gtk/gtk.h>
#include <unistd.h>

GtkWidget *image[5];

void click_button()
{
for (int j=0 ; j<5 ; j++)
{
sleep(2);
gtk_image_set_from_file(GTK_IMAGE(image[j]),"images3.png");
}
}

int main(int argc , char *argv[])
{
gtk_init(&argc, &argv);
GtkWidget *window;
GtkWidget *vbox ;
GtkWidget *togglebutton[5];
GtkWidget *button=gtk_button_new_with_label("start");

window=gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_widget_set_size_request(window,300,300);
vbox=gtk_vbox_new(TRUE,0);
gtk_container_add(GTK_CONTAINER(window),vbox);
for(int i=0 ; i<5 ; i++)
{
togglebutton[i]=gtk_toggle_button_new();
gtk_box_pack_start_defaults(GTK_BOX(vbox),togglebutton[i]);
image[i]=gtk_image_new();
gtk_container_add(GTK_CONTAINER(togglebutton[i]),image[i]);
}
gtk_box_pack_start_defaults(GTK_BOX(vbox),button);
g_signal_connect(G_OBJECT(button),"clicked",G_CALLBACK(click_button),NULL);
gtk_widget_show_all(window);
gtk_main();
return 0;
}

I want one pic to be in the image widget in each run time of for loop in click_button function . but at the run time , for loop
do not run 5 times and do not finish , the pictures dont place in the image widgets . what should I do to have 1 pic in the image widget at each loop run ?

alen121 · Familiar Face Joined: 28 Sep 2007 Posts: 25

gtk_image_set_from_file not work until loop is end!!and solution?

Wolfgang · Familiar Face Joined: 05 Feb 2008 Posts: 37

try to use g_add_timeout_add() or another timer function

alen121 · Familiar Face Joined: 28 Sep 2007 Posts: 25

click_button function should be run and trend of program running return in to main function and reach to gtk_main() function in order to display the pictures . it dosent relate to sleep func . what should I do to slove this problem ?

Wolfgang · Familiar Face Joined: 05 Feb 2008 Posts: 37

Until handler returns control to main loop, no one event will be processed. Including repaint events!