MFC set Control color question [Solved]

[econy]

Hi, I want to change a control's color, for example, static text. logic like:

if test == 0 then
static text color = Red
else
static text color = Green
endif

first I try to do it in OnCtlColor() function, in timer function, I declared a global variable.

BOOL test = 0;
OnTimer() {
test ^= 1;
}

OnCtlColor() {
if (test == 0 ) {
pDC->SetTextColor(RGB(0,100,0));
}
else {
pDC->SetTextColor(RGB(255,0,0));
//pDC->SetBkMode(TRANSPARENT);
}
}

But, the color always be green, not swap.
I knew OnCtlColor need to be trigger with invalidate().

but I don't know how to invalidate a control, not affect it's parent window.

[CPallini]

You could try to call CStatic's Invalidate and UpdateWindow methods.

Veni, vidi, vici.

[econy]

Thanks

[CPallini]

You are welcome.

Veni, vidi, vici.