Errors, bugs, questions - page 2168

[Alexander]

Sergey Lazarenko:
I have an Alpari esn mt5 account, just for fun I looked at the demo from metaquotes, they show it correctly

Thank you for your feedback. Already aware of the problem, we are dealing with it.

[Alexandr Bryzgalov]

Andrey Khatimlianskii:

What is the task? Why the state of the button?

And where are the attempts? )

Seems to be a standard way to catch combinations, but not sure it will work for the reserved one.

illuminate the price tag (the price to which the crosshair points) when the crosshair appears

and consequently follow the crosshair and remove the marker when the crosshair is off.

[Alexandr Bryzgalov]

Sergey Dzyublik:

Since my message promising to find the old code was deleted, it turns out I didn't promise anything...
Just kidding.

It was written in those dark days (more than 3 years ago), when keyboard functionality was still small and, to put it mildly, unimpressive.
Nowadays, however, as far as memory serves, there are standard features to track the status of a particular key.
So the code snippet below is unlikely to be of any use:

where:
lparam - code of pressed key in current event;
last_key_code - code of the pressed key in the previous event;
g_first_key - code of the first key of the combination;
g_second_key - code of the second key from the combination;
time - time of the current event of the key pressing;
last_time_code - time of previous key press event;
g_time_limit - maximum time between first and second key presses to be considered as a key combination;

Thanks, I'll give it a try.

[Rashid Umarov]

Alexandr Bryzgalov:

Thanks. I'll give it a try.

Why guess when there are examples in the help? https://www.mql5.com/ru/docs/constants/chartconstants/enum_chartevents

But no one would think to look there )

Event	Parameter value id	Parameter value lparam	Parameter value dparam	Parameter value sparam
Keyboard press event	CHARTEVENT_KEYDOWN	code of the pressed key	Number of times the key is pressed, generated while it is held down	String value of bitmask describing the status of the keyboard keys

I already told Andrei (Hatimlansky) - first we create (invent) a problem, then we solve it valiantly, regardless of...

[Alexandr Bryzgalov]

Rashid Umarov:

Why guess when there are examples in the help? https://www.mql5.com/ru/docs/constants/chartconstants/enum_chartevents

But no one would ever guess to look there )

I already told Andrei (Hatimlansky) - first we create (invent) the problem, then we solve it valiantly, regardless of...

I did look at this part of documentation.

I could not find the solution for the keyboard shortcut on the surface or did not understand it, so I reached out to the community.

In general, I expected that you can catch the "crosshair" button clicking in the terminal, but that's how it is.

SZY: For the mouse button, I took the code from this example.

[Andrey Khatimlianskii]

Rashid Umarov:

I have already told Andrei (Hatimlansky) - first we create (invent) a problem, then we valiantly solve it, regardless of...

Roche, I was responding to that comment of yours. Just because you don't see a problem doesn't mean there isn't one.

[Grigoriy Chaunin]

In the HTML report in the MT4 tester, does the landing count by equity or by balance?

[Rashid Umarov]

Andrey Khatimlianskii:

Roche, I was responding to that comment you made. Just because you don't see a problem doesn't mean there isn't one.

I'm talking about finding code to catch keystrokes. About the crosshair - you need to write to servicedesk if there is a real error or you need functionality

[Alexandr Bryzgalov]

Rashid Umarov:

I am talking about searching for code to catch keystrokes. About the crosshair - need to write to servicedesk, if a real error or need functionality

I wasn't interested in the code, but in the algorithm.

Now I see that I need to catch the first key, remember the time, catch the second key to check if the time has run out.

I don't quite understand how an event handler works

for example, if I press two keys, will it alternate between them or something else?

It's the first thing I look at, but sometimes I look and see nothing.

ZS: and when one key is pressed, does it pick up any other keys at all?

[A100]

Compilation error

template<typename T>
void f() {}
template<typename T1, typename T2>
void f() {} //Error: 'f' - function already defined and has body