Errors, bugs, questions - page 1052

[Andrew Petras]

This ENUM_PLOT_PROPERTY_INTEGER enumeration for PlotIndexSetInteger() and PlotIndexGetInteger()

can be assigned, can be read

[Maxim Khrolenko]

I'm trying to understand OOP.
1) If I make a function, then it can be (a) connected to the code using #include and the file itself (b) or inserted directly in the EA/indicator code. The article " Principles of Object Oriented Programming " in the section "Load a Class" shows the connection through #include . Question - is it possible to write a class for EA/indicator and keep it in the code itself (as for a function)?
2) I understand that with OOP it is possible to use additional capacities, e.g. video cards. If for example there is an Expert Advisor and part of the calculations are placed in the function, all the calculations are forwarded to the CPU, but if instead of the function a class is created, it directs its calculations to the GPU (parallels the calculations)? Have I correctly understood the meaning of accelerating calculations when using OOP?

[Vladimir Kazakov]

paladin800:

I am trying to understand the OOP.
1) If I make a function, it can be (a) connected to the code using #include and the file itself (b) or inserted directly in the EA/indicator code. The article " Principles of Object Oriented Programming " in the section "Load a Class" shows the connection through #include . Question - is it possible to write a class for EA/indicator and keep it in the code itself (as for a function)?
2) I understand that with OOP it is possible to use additional capacities, e.g. video cards. If for example there is an Expert Advisor and part of the calculations is implemented in the function, all the calculations are forwarded to the CPU, but if instead of the function a class is created, it directs its calculations to the GPU (parallels the calculations)? Have I correctly understood the meaning of accelerating calculations by using OOP?

1) Yes

2) No.

[Stanislav Korotky]

Regarding the MT4 Marketplace: what version should MT4 be in order to compile programs for uploading them to the MT4 Beta Marketplace?

[Dmitriy Mironov]

I have a question... I created signals today, but there is no connection and there is no information about the signals (depo size, history of transactions(although I have already made a couple of transactions))... This should be the case with the test????

[Mykola Demko]

marketeer:
Regarding MT4 Marketplace: what version should MT4 be, to compile programs for their subsequent uploading to MT4 Marketplace beta?

Programs are not compiled by MT, they are compiled by a compiler. The one that allows you to market products on MT4 is now available in beta testing.

Download zip archive here: https://c.mql5.com/mql4/forum/2013/08/MetaTrader4.Beta.IDE_1.zip

[Aleksey Rodionov]

mql4

void PlaySound( string filename)
The function plays an audio file. The file must be located in terminal_directory\sounds or its subdirectory.
Parameters:
filename - path to sound file.
Example:

if(IsDemo()) PlaySound("alert.wav");

Is there anything similar for mql5?

[Mykola Demko]

Zeleniy:

mql4

void PlaySound( string filename)
The function plays the sound file. The file must be located in terminal_directory\sounds or its subdirectory.
Parameters:
filename is the path to the sound file.
Example:

if(IsDemo()) PlaySound("alert.wav");

Is there anything like this for mql5? searching does not give any results.

https://www.mql5.com/ru/docs/common/playsound

[Aleksey Rodionov]

Urain:
https://www.mql5.com/ru/docs/common/playsound

Thank you very much.

Strange that the search didn't produce any keyword queries.

[Denis Kirichenko]

It's been a few days since the site's Search functioned at a standstill. Am I right in assuming that there is some work going on on the site which is causing the search to fail?