BOOL WINAPI GetMessage( _Out_ LPMSG lpMsg, _In_opt_ HWND hWnd, _In_ UINT wMsgFilterMin, _In_ UINT wMsgFilterMax );

[Aidoru]

Hello, 

I have problem to use GetMessage(...) Win32 function to intercept Windows msg.

Could someone please help me with a little example if that is possible?

Than you

[William Roeder]

Likely not possible, the terminal has its own message loop. Unnecessary since February 3, 2014 (Build 600.) Use OnChartEvent()