Solution for intercepting meizu M8 system messages under. Net CF, including M keys and USB status change events

. Net CF system message blocking solution, including the M key, USB status change event compressed package contains a DLL and C # reference Code.

 

The principle is very simple. Use C ++ to write a DLL and then listen to it in the DLL.SystemMessage. If the message is sent to C # message ***, the message is forwarded to C # message ***.
C # contains a message ***, which receives the message belonging to the window. The corresponding processing is fine.

Exported
Uint mzgethomekeymessage ();
Int registerusbnotifymsg ();
Int getusbconnecttype ();
Three necessary API functions can be called directly.

According to mayaqcn's usage return, unlocking the screen will trigger a USB status change event.
This may be because a Message ID conflicts with a USB message.
SolutionThe solution is: after receiving the USB message, call getusbconnecttype () to determine the USB status. If the status changes, the USB status changes.

Prtscn20091230212142.png(174.23 KB)

TestHardwareKey@200912302207.rar (69.03 KB)