In MQL5, how can I detect keypresses in MT5 running on a Mac

External question — Stack Overflow Stack Exchange Author: Jeronymite Original post: https://stackoverflow.com/questions/76874463 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. When running MT5 on a PC, I can easily detect specific keys when pressed with this MQL5: #import "user32.dll" int GetKeyState(int nVirtKey); #import // --- Windows Key Codes --- #define VK_SHIFT 0x10 // SHIFT key #define VK_CONTROL 0x11 // CTRL key #define VK_ALT 0x12 // ALT key #define VK_ESCAPE 0x1B // ESC key bool IsShift() { return(IsKeyDown(VK_SHIFT)); } bool IsCtrl() { return(IsKeyDown(VK_CONTROL)); } bool IsAlt() { return(IsKeyDown(VK_ALT)); } bool IsEscape() { return(IsKeyDown(VK_ESCAPE)); } bool IsKeyDown(int nVirtKey) { return(GetKeyState(nVirtKey) > 1000); } // Run this crude diagnostic method every 1 second and hold down any key to see its key code void GetKeyCodeOfKeyPressed() // Display the key code and the key state { for (int k = 0; k < 10000; k++) if (IsKeyDown(k)) Print("That's it! ",k," [",GetKeyState(k),"]"); } The code above includes methods specifically trying to detect the PC keyboard modifier keys with individual checks, and the Escape key, as well as a more broad-based test to discover the key code for any pressed key in an attempt to see if it could discover the key codes on a Mac. Running MT5 on a PC, the code above works exactly as one would expect. Running it on a Mac, the code does not detect any keypresses when a key is pressed. None. It's as if even GetKeyState is completely irrelevant on the Mac. In MQL5 with MT5 running on a Mac, how can one detect specific keys pressed? If it is simpler to do this for a subset of keys, it is specifically the modifiers (or Mac equivalents) and Escape that are most relevant. The modifier keys will be used with mouse clicks. Thanks.

External answer — Stack Overflow Stack Exchange Author: Dale Woods Original post: https://stackoverflow.com/a/76962244 License: CC BY-SA 4.0 — https://creativecommons.org/licenses/by-sa/4.0/ Adaptation: HTML converted to plain text; contact email addresses removed. You don't need to use those winapi functions Look at for example TerminalInfoInteger(TERMINAL_KEYSTATE_CONTROL) https://www.mql5.com/en/docs/constants/environment_state/terminalstatus and void OnChartEvent(const int id,const long& lparam,const double& dparam,const string& sparam) { if(id==CHARTEVENT_KEYDOWN) { short sym=TranslateKey((int)lparam); } } https://www.mql5.com/en/docs/common/translatekey