CODEWITHSUNDEEP
mfcwindows-7multi-touch
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Reputation: 2200

Windows 7, cannot receive multitouch events on two different controls

I have Win 7 OS on my machine and have Multi-touch capable monitor which supports up to 2 simultaneous touches.

I have created MFC Dialog application with two sliders and am trying to move them simultaneously with two fingers, but can only move one slider. If I touch the dialog box with two fingers then it receives two touches but two different sliders don't receive simultaneous touches.

On MS Paint I can draw using two fingers.

I also tried to search for multitouch application involving more than one controls but could not find any, and I am starting to wonder if its possible at all on Windows 7

Thanks.

Upvotes: 2

Views: 721

Answers (2)

Robert Levy
Robert Levy

Reputation: 29073

if using WPF is feasible, the "Surface Toolkit for Windows Touch" provides a full suite of touch optimized controls that can be used simultaneously.

you could perhaps host the WPF controls inside your MFC UI but be aware that all of the WPF controls would need to be in a single hwnd - Win7 has an OS limitation that multitouch can only be done with one hwnd at a time.

Upvotes: 1

Kate Gregory
Kate Gregory

Reputation: 18954

You need not only your OS to support multi-touch, but your controls too. Have you done the Hands on Labs for MFC and Multitouch? http://channel9.msdn.com/learn/courses/Windows7/Multitouch has several Native and MFC examples.

If you don't have a real need in your app for two sliders moving at once, but were just trying it out, try something a little different, like zooming by pinching or panning by dragging two fingers, rotating etc. If you want multiple independent touches (ie not interpreted as a pinch zoom) the source code for games is your best examples.

Upvotes: 1

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