9c7a49b57b
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@9460 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
85 lines
4.1 KiB
TeX
85 lines
4.1 KiB
TeX
\section{\class{wxScrollEvent}}\label{wxscrollevent}
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A scroll event holds information about events sent from stand-alone
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scrollbars, spin-buttons and sliders. Note that starting from wxWindows 2.1,
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scrolled windows send the \helpref{wxScrollWinEvent}{wxscrollwinevent} which
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does not derive from wxCommandEvent, but from wxEvent directly - don't confuse
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these two kinds of events and use the event table macros mentioned below only
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for the scrollbar-like controls.
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\wxheading{Derived from}
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\helpref{wxCommandEvent}{wxcommandevent}\\
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\helpref{wxEvent}{wxevent}\\
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\helpref{wxObject}{wxobject}
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\wxheading{Include files}
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<wx/event.h>
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\wxheading{Event table macros}
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To process a scroll event, use these event handler macros to direct input to
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member functions that take a wxScrollEvent argument. You can use
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{\tt EVT\_COMMAND\_SCROLL...} macros with window IDs for when intercepting
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scroll events from controls, or {\tt EVT\_SCROLL...} macros without window IDs
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for intercepting scroll events from the receiving window - except for this,
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the macros behave exactly the same
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\twocolwidtha{7cm}
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\begin{twocollist}\itemsep=0pt
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\twocolitem{{\bf EVT\_SCROLL(func)}}{Process all scroll events.}
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\twocolitem{{\bf EVT\_SCROLL\_TOP(func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-top events.}
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\twocolitem{{\bf EVT\_SCROLL\_BOTTOM(func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-bottom events.}
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\twocolitem{{\bf EVT\_SCROLL\_LINEUP(func)}}{Process wxEVT\_SCROLL\_LINEUP line up events.}
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\twocolitem{{\bf EVT\_SCROLL\_LINEDOWN(func)}}{Process wxEVT\_SCROLL\_LINEDOWN line down events.}
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\twocolitem{{\bf EVT\_SCROLL\_PAGEUP(func)}}{Process wxEVT\_SCROLL\_PAGEUP page up events.}
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\twocolitem{{\bf EVT\_SCROLL\_PAGEDOWN(func)}}{Process wxEVT\_SCROLL\_PAGEDOWN page down events.}
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\twocolitem{{\bf EVT\_SCROLL\_THUMBTRACK(func)}}{Process wxEVT\_SCROLL\_THUMBTRACK thumbtrack events (frequent events
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sent as the user drags the thumtrack).}
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\twocolitem{{\bf EVT\_SCROLL\_THUMBRELEASE(func)}}{Process wxEVT\_SCROLL\_THUMBRELEASE thumb release events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL(id, func)}}{Process all scroll events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_TOP(id, func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-top events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_BOTTOM(id, func)}}{Process wxEVT\_SCROLL\_TOP scroll-to-bottom events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_LINEUP(id, func)}}{Process wxEVT\_SCROLL\_LINEUP line up events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_LINEDOWN(id, func)}}{Process wxEVT\_SCROLL\_LINEDOWN line down events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_PAGEUP(id, func)}}{Process wxEVT\_SCROLL\_PAGEUP page up events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_PAGEDOWN(id, func)}}{Process wxEVT\_SCROLL\_PAGEDOWN page down events.}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_THUMBTRACK(id, func)}}{Process wxEVT\_SCROLL\_THUMBTRACK thumbtrack events (frequent events
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sent as the user drags the thumtrack).}
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\twocolitem{{\bf EVT\_COMMAND\_SCROLL\_THUMBRELEASE(func)}}{Process wxEVT\_SCROLL\_THUMBRELEASE thumb release events.}
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\end{twocollist}%
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\wxheading{Remarks}
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Note that unless specifying a scroll control identifier, you will need to test for scrollbar
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orientation with \helpref{wxScrollEvent::GetOrientation}{wxscrolleventgetorientation}, since
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horizontal and vertical scroll events are processed using the same event handler.
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\wxheading{See also}
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\helpref{wxScrollBar}{wxscrollbar}, \helpref{wxSlider}{wxslider}, \helpref{wxSpinButton}{wxspinbutton}, \\
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\helpref{wxScrollWinEvent}{wxscrollwinevent}, \helpref{Event handling overview}{eventhandlingoverview}
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\latexignore{\rtfignore{\wxheading{Members}}}
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\membersection{wxScrollEvent::wxScrollEvent}
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\func{}{wxScrollEvent}{\param{WXTYPE }{commandType = 0}, \param{int }{id = 0}, \param{int}{ pos = 0},
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\rtfsp\param{int}{ orientation = 0}}
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Constructor.
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\membersection{wxScrollEvent::GetOrientation}\label{wxscrolleventgetorientation}
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\constfunc{int}{GetOrientation}{\void}
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Returns wxHORIZONTAL or wxVERTICAL, depending on the orientation of the scrollbar.
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\membersection{wxScrollEvent::GetPosition}\label{wxscrolleventgetposition}
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\constfunc{int}{GetPosition}{\void}
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Returns the position of the scrollbar.
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