Re: Help, I need filter text in function

[Thomas Mailund <mailund mailund dk>]

On Fri, 2001-08-31 at 03:28, javiercmx correo unam mx wrote:
> Hi list
>
> I write a function it admit numbers, the function is: 
>
> void edit_clv_plt(GtkWidget *widget, gpointer data) {
>   char *tmpplt;
>   char ch = *((char *) data);
>   char *str;
>  
>   str = (char *) data;
>  
>   if(isdigit (ch) && strlen (str) == 1) { /*introducing a number*/
>      g_free(host.plt);                   
>     
>      /*it obtains the chain*/
>      tmpplt=gtk_editable_get_chars(GTK_EDITABLE(widget),0 ,-1); 
>      host.plt=g_strdup(tmpplt);
>     
>   } else {
>     Messages("Error","Write the number");  /*Function for Show Messages*/
>   }
> }                                  

I don't know what your data element is, so I can't really tell you what
is wrong with your code.

> The user write the numbers, in GtkEntry, the text is not allowed, the max digits
> is 3, but when running the program write a text, call function Messages, if
> write a number, call a function Messages, where this the error

I've attached a program that only allows you to type in digits, and only
up to three of those.  It is not a particullar good example, 'cause you
cant delete chars or move the cursor since these keys are also aborted,
but perhaps you can use it to get where you want.

        /mailund

-- 

I used up all my sick days, so I'm calling in dead.

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