View Source wxIcon (wx v2.4.2)
Functions for wxIcon class
An icon is a small rectangular bitmap usually used for denoting a minimized application.
It differs from a wxBitmap in always having a mask associated with it for
transparent drawing. On some platforms, icons and bitmaps are implemented
identically, since there is no real distinction between a wxBitmap with a
mask and an icon; and there is no specific icon format on some platforms
(X-based applications usually standardize on XPMs for small bitmaps and icons).
However, some platforms (such as Windows) make the distinction, so a separate
class is provided.
Remark: It is usually desirable to associate a pertinent icon with a frame.
Icons can also be used for other purposes, for example with wxTreeCtrl and
wxListCtrl. Icons have different formats on different platforms therefore
separate icons will usually be created for the different environments.
Platform-specific methods for creating a wxIcon structure are catered for,
and this is an occasion where conditional compilation will probably be required.
Note that a new icon must be created for every time the icon is to be used for a
new window. In Windows, the icon will not be reloaded if it has already been
used. An icon allocated to a frame will be deleted when the frame is deleted.
For more information please see overview_bitmap.
Predefined objects (include wx.hrl): ?wxNullIcon
See:
Overview bitmap,
Overview bitmap,
wxIconBundle, wxDC:drawIcon/3, wxCursor
This class is derived (and can use functions) from: wxBitmap
wxWidgets docs: wxIcon
Summary
Functions
Copies bmp bitmap to this icon.
Destructor.
Default ctor.
Copy ctor.
Loads an icon from a file or resource.
Types
-type wxIcon() :: wx:wx_object().
Functions
-spec copyFromBitmap(This, Bmp) -> ok when This :: wxIcon(), Bmp :: wxBitmap:wxBitmap().
Copies bmp bitmap to this icon.
Under MS Windows the bitmap must have mask colour set.
See: wxBitmap:loadFile/3
-spec destroy(This :: wxIcon()) -> ok.
Destructor.
See overview_refcount_destruct for more info.
If the application omits to delete the icon explicitly, the icon will be destroyed automatically by wxWidgets when the application exits.
Warning: Do not delete an icon that is selected into a memory device context.
-spec new() -> wxIcon().
Default ctor.
Constructs an icon object with no data; an assignment or another member function
such as wxBitmap:loadFile/3 must be called subsequently.
-spec new(Name) -> wxIcon() when Name :: unicode:chardata(); (Icon) -> wxIcon() when Icon :: wxIcon().
Copy ctor.
-spec new(Name, [Option]) -> wxIcon() when Name :: unicode:chardata(), Option :: {type, wx:wx_enum()} | {desiredWidth, integer()} | {desiredHeight, integer()}.
Loads an icon from a file or resource.
See: wxBitmap:loadFile/3