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3935

16 Posts
Posted - 10 Mar 2002 :  17:13:22  Show Profile  Email Poster
Is there something like a right mouse button when using a touchscreen?

ctacke

877 Posts
Posted - 10 Mar 2002 :  23:06:40  Show Profile  Email Poster
Typical right-mouse-button actions such as context-sensitive menus are implemented with a tap-and-hold approach.

When the stylus touches the screen, a WM_MOUSEDOWN event fires. By periodically calling GetAsyncKeyState(VK_LBUTTON) after that event (usually in an iterative loop or with a short-duration timer) it is possible to determine if the stylus is still down.

If the stylus remains down for a specific period of time (i.e 1 second) then you can call some right-button type functionality such as creating and displaying a menu.

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Chris Tacke, eMVP
Applied Data Support
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ctacke

877 Posts
Posted - 30 May 2002 :  17:29:43  Show Profile  Email Poster
PopupTest is a sample eVB application showing how to implement tap-and-hold functionality. The source can be found in this topic.

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Chris Tacke, eMVP
Applied Data Support
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