array of structures as an argument

koszta · 02-22-2009, 03:49 PM

Hi,
I m having some problems with a callback function. Let me explain it through code...

Code:

//I have this structure//

typedef struct 
{
	int cisliceee;
	GtkWidget*nalepka;
	int poziceee;
}vstup;
//and an array of these structures//
vstup* v[16];

/*and in this callback function I want a pointer to one element of that array, and then work inside of the structure of this particular element*/

void cudl_stisknut(GtkWidget *widget,vstup*v[])
{   
	if (v[]->poziceee=7){
		gtk_main_quit();
	}

can anyone tell me what do I do wrong? I just want it to be the way that if the element that emits the signal has a value stored in its poziceee and it equals 7 then to execute the quit function...

tabstop · 02-22-2009, 03:58 PM

1) vstup* v[16] is not an array of structures. It's an array of pointers that could point to some structures, should you ever create any.
2) Do you want just a pointer to a single vstup object? Then just do that: vstup *v.

locke · 03-21-2009, 03:59 PM

can u teach me c++

02-22-2009, 03:49 PM	#1
koszta Registered User Join Date: Feb 2009 Posts: 3	array of structures as an argument Hi, I m having some problems with a callback function. Let me explain it through code... Code: //I have this structure// typedef struct { int cisliceee; GtkWidgetnalepka; int poziceee; }vstup; //and an array of these structures// vstup v[16]; /and in this callback function I want a pointer to one element of that array, and then work inside of the structure of this particular element/ void cudl_stisknut(GtkWidget widget,vstupv[]) { if (v[]->poziceee=7){ gtk_main_quit(); } can anyone tell me what do I do wrong? I just want it to be the way that if the element that emits the signal has a value stored in its poziceee and it equals 7 then to execute the quit function...
koszta is offline

02-22-2009, 03:58 PM	#2
tabstop and the Hat of Guessing Join Date: Nov 2007 Posts: 8,845	1) vstup* v[16] is not an array of structures. It's an array of pointers that could point to some structures, should you ever create any. 2) Do you want just a pointer to a single vstup object? Then just do that: vstup *v.
tabstop is offline

03-21-2009, 03:59 PM	#3
locke Registered User Join Date: Mar 2009 Posts: 1	can u teach me c++
locke is offline

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