On 5/31/21 7:04 AM, Fady Megally wrote:

I apologize if I am missing something obvious here but does Fl_Value_Output allow for changing the justification of the value out of the box ? trying to right justify the 7-seg oil temp number here. will have other value below and want the decimals to be aligned.

    ..and make sure the Fl_Value_Output is large enough to show that many digits.
    Complete example below:

#include <FL/Fl.H>
#include <FL/Fl_Window.H>
#include <FL/Fl_Output.H>

Fl_Window *G_win = 0;
Fl_Output *G_out = 0;

void Timer_CB(void*)
{
    // Running floating point number that changes each timer tick
    static float f = 0;
    f += 10.3;
    if ( f > 500 ) f = 0;

    // Right padded 6 digit
    char s[80]; sprintf(s, "%6.1f", f);
    G_out->value(s);

    Fl::repeat_timeout(0.5, Timer_CB);
}

int main()
{
    // Window
    G_win = new Fl_Window(640,480);
    G_win->color(0xa0a0a000);   // bg

    // Digit Display
    G_out = new Fl_Output(10,10,120,40,"Oil Temp");
    G_out->align(FL_ALIGN_CENTER|FL_ALIGN_BOTTOM);
    G_out->labelcolor(FL_WHITE);
    G_out->color(FL_BLACK);
    G_out->textcolor(FL_GREEN);
    G_out->textfont(FL_COURIER);
    G_out->textsize(24);

    G_win->show();                 // ADDED
    Fl::add_timeout(0.5, Timer_CB);
    return Fl::run();           // ADDED
}