While statement inside the main loop

[OnionRingOfDoom]

Well, I'm not really trying to do anything with the label, it was just there for testing purposes. I figured that if I could get that label to work right, then I could get whatever else I wanted to put in the while statement to work. In reality, I'll be using this code:

while (i)
{
     int amp = window.slider->ampSlider->value();
     int freq = window.slider->freqSlider->value();
     int sineValue = amp * ( sin(2 * M_PI * freq) * i);
     i++;
}

while (i)
{
     int amp = window.slider->ampSlider->value();
     int freq = window.slider->freqSlider->value();
     int sineValue = amp * ( sin(2 * M_PI * freq) * i);
     i++;
}

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Or at least something similar to it. In other words, I want it to be giving me the y axis of a sine wave while the program runs, so that it lets me change the amplitude and the frequency using the slider, and updates the sine wave accordingly. The i is there so the sine wave moves along the x axis, resulting in a smooth up and down motion.

[yop]

Well, I'm not really trying to do anything with the label, it was just there for testing purposes. I figured that if I could get that label to work right, then I could get whatever else I wanted to put in the while statement to work. In reality, I'll be using this code:

while (i)
{
     int amp = window.slider->ampSlider->value();
     int freq = window.slider->freqSlider->value();
     int sineValue = amp * ( sin(2 * M_PI * freq) * i);
     i++;
}

while (i)
{
     int amp = window.slider->ampSlider->value();
     int freq = window.slider->freqSlider->value();
     int sineValue = amp * ( sin(2 * M_PI * freq) * i);
     i++;
}

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I 'd suggest a timer and updating the graph each time it times out. Don't use the while loop especially since it's not necessary as the event loop will be blocked and you'll have to processEvents() if you use it.

Edit: I only show the last post and Weaver has suggested the same thing