> if(o->value == "white"){ blabla}
> my if condition is never verified. why's that ?
because o->value is a char* pointer to some area of memory
containing the characters "white\0" and you are trying to
compare it to a different char* pointer to a different area
of memory containing the characters "white\0" ?
try using
if (strcmp(o->value, "white") == 0) { blabla}
> and while trying to get around this problem i tried:
>
> const char *p = o->value();
> if(p="white"){
> o->value("black");
> } //notice the only equal sign !
>
> and, very strangely, the if condition is always satisfied!
> even when the value of the widget has changed ! (and it has
> changed, i made it appear in a window...)
because if (p="white") assigns the char* pointer to an area
of memory containing the characters "white\0" to p, and then
tests whether p is true (ie non-zero). this will be true for
any string on the left hand side, and false for 0 or NULL.
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