Hi, I'm starting to program in C/GTK+ and I have a problem with a
variable. Let me show the code and the error:
/*-- Global Variables --*/
char query_string[256];
GtkWidget *entry_sql;
.
.
.
/*-- Do the instruction SQL --*/
sprintf(query_string, entry_sql); // Build the instruction SQL
res = PQexec(conn, query_string); // Send the SQL to the database
I need to pass the value in GtkWidget *entry_sql to the char
query_string[256] (a C variable), because when i compile it i receive
the following error:
[Warning] passing arg 2 of `sprintf' from incompatible pointer type
How can i solve this problem?
Thanks.
Wilton
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