Any rookie question, so as not to clutter up the forum. Professionals, don't pass by. Nowhere without you - 6. - page 951

[atztek]

There is a function WindowIsVisible() that shows the state of the subwindow - visible or not.
How can I make an indicator subwindow invisible, preferably from the code? (if at all possible)

[[Deleted]]

void OnStart()
  {
string s = "";
double p = 0;
         p = Point;
         p = NormalizeDouble(p, Digits);
         s = DoubleToString (p);
         Alert(s);  
  }

I wanted Alert to show the normalized point value. But it returns 0.00001000, it should be normalized after NormalizeDouble function?

[Victor Nikolaev]

JoinDoe:

I wanted Alert to show the normalized point value. But it returns 0.00001000, it should be normalized after NormalizeDouble function?

DoubleToStr() would help

[[Deleted]]

Vinin:
DoubleToStr() will help

Thank you, it helped! But what if I need to do mathematical operations with Point? When it's output by Alert, it outputs a 16 digit number 1e-005.0. After normalization, it's 0.00001000. To display it, we need to convert it into a string form, but you can't perform arithmetic operations with a string. How can I cut off the extra 3 zeros at the end and still be able to perform mathematical operations?

[Victor Nikolaev]

JoinDoe:
Thank you, that helps! But what if I need to do mathematical operations with Point? When you output it by Alert, it outputs a 16 hex digit 1e-005.0. After normalization, it's 0.00001000. To display it, we need to convert it into a string form, but you can't perform arithmetic operations with a string. How can I cut off the extra 3 zeros at the end and still be able to perform mathematical operations?

And why are you bothered by extra zeros?

Storing and displaying numbers are slightly different things

[Vladyslav Goshkov]

JoinDoe:
Thank you, that helps! But what if I need to do mathematical operations with Point? When it is output by Alert, it outputs a 16-digit number 1e-005.0. After normalization it is 0.00001000. To display it, we need to convert it into a string form, but you can't perform arithmetic operations with a string. How can we make it possible to cut off 3 extra zeros at the end, and still be able to perform mathematical operations?

You do not need to do anything with it. Use it as it is. 1e-005 is an exponential form of notation. The number itself does not change depending on the form in which you display it.

[atztek]

There is an indicator buffer in the code, which is used to draw a line on the chart.
After N-bars this line is no longer needed, but the indicator continues to consume memory.

I have a question - if I just null the buffer values for the bars exceeding {0-N} -
will it free up memory?

[Victor Nikolaev]

atztek:
There is an indicator buffer in the code which is used to draw a line on the chart.
When N bars pass, this line is no longer needed, but the indicator continues to consume memory.

I have a question - if I just zero out the buffer values for bars outside {0-N} -
will it lead to memory freeing?

No

[atztek]

Vinin:
No

Am I correct in assuming that the only way to avoid memory overruns by indicator buffers is
to initially allocate some range for them (e.g. 0 to 2000) and not exceed it?

[Victor Nikolaev]

atztek:
Do I understand correctly, the only way to avoid memory overrun by indicator buffers is
to initially allocate a certain range for them (e.g. from 0 to 2000) and not exceed it?

The only way is to specify the minimum number of displayed bars in the terminal settings