RaidenWorks
Michael
Extern variables not updating after editing “Expert Advisors -> Properties” (F7 shortcut)
I see this tripping up MT4 programmers enough that it warrants a post. A quick background for the uninitiated, Metaquotes structured MT4 EAs with 3 main event processes. init(), start() and deinit() This is clean, minimal and logically sound. init() runs ONCE on starting up, or when editing your EA properties, allowing you to do … Continue reading
MetaTrader 4 Client Terminal Build 509 (Compile error addressed)
Metaquotes promptly resolved the compiler error with build 509. Good going! http://forum.mql4.com/56329
MetaTrader 4 Client Terminal Build 507 (MetaEditor compile error)
New build. Features and updates as announced here. http://forum.mql4.com/56286 With the release of build 500 and its forcing of update for existing builds above 482, there’s been quite a bit of ire from developers. Justly so because newer builds tend to break some functionality, see https://raidenworks.com/2012/08/11/metaeditor-corrupt-compile/ and build 417 errorneous return of double from the DLL functions. And it’s … Continue reading
MetaTrader 4 Client Terminal Build 500
Quick post, Metaquotes has rolled out their latest MT4 build 500. Significant thing to note is that it appears to be a mandatory update the moment your selected broker decides to roll it out to clients, i.e. completely bypassing the liveupdate.exe in the root folder. The most glaring intro to this is a pop-up window you’ll … Continue reading
Do mql4 AND and OR operators have short circuit evaluation?
Some background on short circuit evaluation (skip this if you already know what it is): Examine this if statement with a logical OR operator: If there is short circuit evaluation(“SCE”), as long as the leftmost condition fulfills, the entire if OR statement fulfills and passes control to the next line. If there is no SCE, … Continue reading
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RaidenWorks 