Touch Screen Gestures in LCL?

[CM630]

In another thread I was told that LCL does not support touch screen gestures. I just wonder if someone is working on implementing that functionality? Google gave e no answer.

[ps]

I'm searching for solution, found this one, but no luck (don't work on Win8 tablet). I have Delphi XE but touch support for listbox etc. don't work well (as expected).

[skalogryz]

Recommended Reading

hmm.. I guess more complicated part is to debug/simulate touches. StackOverlflow. Typical MS approach.Visual Studio

[CM630]

So I conclude that there is no work on gesture implementation in LCL.
Your links point to Win only solutions, so I suppose a separate r solution shall be used for each single OS.

[StefanC]

Unfortunately, under Windows, messages not known to the current implementation are not forwarded to the application windows, so you can't process wm_touch or wm_gesture messages by a message handler unless you first add these messages to WindowProc in win32callback.inc, such as I have done here, at the end of the list:

Code: [Select]

   
    WM_IME_COMPOSITION,
    WM_IME_COMPOSITIONFULL,
    WM_IME_CONTROL,
    //WM_IME_ENDCOMPOSITION,
    WM_IME_NOTIFY,
    WM_IME_REQUEST,
    WM_IME_SELECT,
    WM_IME_SETCONTEXT,
    WM_IME_STARTCOMPOSITION,
    $0240, // = WM_TOUCH
    $0119 // = WM_GESTURE
    :
    begin
      LMessage.Msg := Msg;
      LMessage.WParam := WParam;
      LMessage.LParam := LParam;
      WinProcess := False;
    end;
A full implementation, of course, would rather implement them to fire OnTouch and OnGesture events.

[zeljko]

We should implement it for lazarus 1.6. Gtk3, Qt, Win32 and probably cocoa supports gestures.