How to pass multiple spin buttons value to a function?(GTK/C)
-2
I have a problem passing multiple values from spin buttons
I try making, many callbacks with a button but i need to receive and manipulate many variables at the same time.
gint grab_int_value (GtkSpinButton *spinbutton, gpointer user_data)
{
gint steps = gtk_spin_button_get_value_as_int (user_data);
printf ("The value of the step is: %d ms.n", steps);
}
done = gtk_button_new_with_mnemonic("_DONE");
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button1);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button2);
c gtk3
asked Nov 23 '18 at 4:30
Tony UM
166
add a comment |
-2
I have a problem passing multiple values from spin buttons
I try making, many callbacks with a button but i need to receive and manipulate many variables at the same time.
gint grab_int_value (GtkSpinButton *spinbutton, gpointer user_data)
{
gint steps = gtk_spin_button_get_value_as_int (user_data);
printf ("The value of the step is: %d ms.n", steps);
}
done = gtk_button_new_with_mnemonic("_DONE");
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button1);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button2);
c gtk3
asked Nov 23 '18 at 4:30
Tony UM
166
add a comment |
-2
-2
-2
I have a problem passing multiple values from spin buttons
I try making, many callbacks with a button but i need to receive and manipulate many variables at the same time.
gint grab_int_value (GtkSpinButton *spinbutton, gpointer user_data)
{
gint steps = gtk_spin_button_get_value_as_int (user_data);
printf ("The value of the step is: %d ms.n", steps);
}
done = gtk_button_new_with_mnemonic("_DONE");
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button1);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button2);
c gtk3
asked Nov 23 '18 at 4:30
Tony UM
166
I have a problem passing multiple values from spin buttons
I try making, many callbacks with a button but i need to receive and manipulate many variables at the same time.
gint grab_int_value (GtkSpinButton *spinbutton, gpointer user_data)
{
gint steps = gtk_spin_button_get_value_as_int (user_data);
printf ("The value of the step is: %d ms.n", steps);
}
done = gtk_button_new_with_mnemonic("_DONE");
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button1);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value),
spin_button2);
c gtk3
c gtk3
asked Nov 23 '18 at 4:30
Tony UM
166
asked Nov 23 '18 at 4:30
Tony UM
166
asked Nov 23 '18 at 4:30
Tony UM
166
asked Nov 23 '18 at 4:30
Tony UM
166
asked Nov 23 '18 at 4:30
Tony UM
166
166
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
0
Create a struct with pointers to all the objects you need to manipulate in the callbacks, and add pass a pointer to that as the user data:
typedef struct {
GtkWidget *spin_button1;
GtkWidget *spin_button2;
} Widgets;
...
Widgets* w = g_new(Widgets, 1);
w->spin_button1 = spin_button1;
w->spin_button2 = spin_button2;
...
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
...
int grab_int_value(GtkSpinButton *spinbutton, gpointer user_data) {
Widgets *w = (Widgets *) user_data;
int steps = gtk_spin_button_get_value_as_int(w->spin_button1);
...
}
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
0
Create a struct with pointers to all the objects you need to manipulate in the callbacks, and add pass a pointer to that as the user data:
typedef struct {
GtkWidget *spin_button1;
GtkWidget *spin_button2;
} Widgets;
...
Widgets* w = g_new(Widgets, 1);
w->spin_button1 = spin_button1;
w->spin_button2 = spin_button2;
...
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
...
int grab_int_value(GtkSpinButton *spinbutton, gpointer user_data) {
Widgets *w = (Widgets *) user_data;
int steps = gtk_spin_button_get_value_as_int(w->spin_button1);
...
}
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
add a comment |
0
Create a struct with pointers to all the objects you need to manipulate in the callbacks, and add pass a pointer to that as the user data:
typedef struct {
GtkWidget *spin_button1;
GtkWidget *spin_button2;
} Widgets;
...
Widgets* w = g_new(Widgets, 1);
w->spin_button1 = spin_button1;
w->spin_button2 = spin_button2;
...
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
...
int grab_int_value(GtkSpinButton *spinbutton, gpointer user_data) {
Widgets *w = (Widgets *) user_data;
int steps = gtk_spin_button_get_value_as_int(w->spin_button1);
...
}
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
add a comment |
0
0
0
Create a struct with pointers to all the objects you need to manipulate in the callbacks, and add pass a pointer to that as the user data:
typedef struct {
GtkWidget *spin_button1;
GtkWidget *spin_button2;
} Widgets;
...
Widgets* w = g_new(Widgets, 1);
w->spin_button1 = spin_button1;
w->spin_button2 = spin_button2;
...
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
...
int grab_int_value(GtkSpinButton *spinbutton, gpointer user_data) {
Widgets *w = (Widgets *) user_data;
int steps = gtk_spin_button_get_value_as_int(w->spin_button1);
...
}
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
Create a struct with pointers to all the objects you need to manipulate in the callbacks, and add pass a pointer to that as the user data:
typedef struct {
GtkWidget *spin_button1;
GtkWidget *spin_button2;
} Widgets;
...
Widgets* w = g_new(Widgets, 1);
w->spin_button1 = spin_button1;
w->spin_button2 = spin_button2;
...
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
g_signal_connect(done, "clicked", G_CALLBACK(grab_int_value), w);
...
int grab_int_value(GtkSpinButton *spinbutton, gpointer user_data) {
Widgets *w = (Widgets *) user_data;
int steps = gtk_spin_button_get_value_as_int(w->spin_button1);
...
}
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
edited Nov 24 '18 at 16:39
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
answered Nov 23 '18 at 15:02
ptomato
42.3k1184129
42.3k1184129
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
add a comment |
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Could you give me an example of this?, i'm pretty new
– Tony UM
Nov 23 '18 at 16:47
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Okay, edited...
– ptomato
Nov 24 '18 at 16:39
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
Thanks, now understand better, and sorry for the inconvenients
– Tony UM
Nov 24 '18 at 20:40
add a comment |
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