Struct winsafe::co::WS_EX [−][src]
#[repr(transparent)]pub struct WS_EX(_);Expand description
Extended window
styles
(u32).
Implementations
The window has a double border; the window can, optionally, be created
with a title bar by specifying the
WS::CAPTION style in the dwStyle parameter.
The child window created with this style does not send the
wm::ParentNotify message to its parent
window when it is created or destroyed.
The window should be placed above all non-topmost windows and should
stay above them, even when the window is deactivated. To add or remove
this style, use the HWND::SetWindowPos
function.
The window accepts drag-drop files.
The window should not be painted until siblings beneath the window (that were created by the same thread) have been painted. The window appears transparent because the bits of underlying sibling windows have already been painted.
To achieve transparency without these restrictions, use the
HWND::SetWindowRgn function.
The window is intended to be used as a floating toolbar. A tool window has a title bar that is shorter than a normal title bar, and the window title is drawn using a smaller font. A tool window does not appear in the taskbar or in the dialog that appears when the user presses ALT+TAB. If a tool window has a system menu, its icon is not displayed on the title bar. However, you can display the system menu by right-clicking or by typing ALT+SPACE.
The window has a border with a raised edge.
The window has a border with a sunken edge.
The title bar of the window includes a question mark. When the user
clicks the question mark, the cursor changes to a question mark with a
pointer. If the user then clicks a child window, the child receives a
wm::Help message. The child window should pass
the message to the parent window procedure, which should call the
WinHelp function using the HELP_WM_HELP
command. The Help application displays a pop-up window that typically
contains help for the child window.
WS_EX::CONTEXTHELP cannot be used with the
WS::MAXIMIZEBOX or
WS::MINIMIZEBOX styles.
The window has generic “right-aligned” properties. This depends on the window class. This style has an effect only if the shell language is Hebrew, Arabic, or another language that supports reading-order alignment; otherwise, the style is ignored.
Using the WS_EX::RIGHT style for static or edit controls has the same
effect as using the SS::RIGHT or
ES::RIGHT style, respectively. Using this
style with button controls has the same effect as using
BS::RIGHT and
BS::RIGHTBUTTON styles.
If the shell language is Hebrew, Arabic, or another language that supports reading-order alignment, the window text is displayed using right-to-left reading-order properties. For other languages, the style is ignored.
The window text is displayed using left-to-right reading-order properties. This is the default.
If the shell language is Hebrew, Arabic, or another language that supports reading order alignment, the vertical scroll bar (if present) is to the left of the client area. For other languages, the style is ignored.
The vertical scroll bar (if present) is to the right of the client area. This is the default.
The window itself contains child windows that should take part in dialog box navigation. If this style is specified, the dialog manager recurses into children of this window when performing navigation operations such as handling the TAB key, an arrow key, or a keyboard mnemonic.
The window has a three-dimensional border style intended to be used for items that do not accept user input.
Forces a top-level window onto the taskbar when the window is visible.
The window is an overlapped window.
The window is palette window, which is a modeless dialog box that presents an array of commands.
The window is a layered window. This style cannot be used if the window
has a class style of either CS::OWNDC or
CS::CLASSDC.
Windows 8: The WS_EX::LAYERED style is supported for top-level windows
and child windows. Previous Windows versions support WS_EX::LAYERED
only for top-level windows.
The window does not pass its window layout to its child windows.
The window does not render to a redirection surface. This is for windows that do not have visible content or that use mechanisms other than surfaces to provide their visual.
If the shell language is Hebrew, Arabic, or another language that supports reading order alignment, the horizontal origin of the window is on the right edge. Increasing horizontal values advance to the left.
Paints all descendants of a window in bottom-to-top painting order using
double-buffering. Bottom-to-top painting order allows a descendent
window to have translucency (alpha) and transparency (color-key)
effects, but only if the descendent window also has the
WS_EX::TRANSPARENT bit set. Double-buffering allows the window and its
descendents to be painted without flicker. This cannot be used if the
window has a class style of either CS::OWNDC
or CS::CLASSDC.
Windows 2000: This style is not supported.
A top-level window created with this style does not become the foreground window when the user clicks it. The system does not bring this window to the foreground when the user minimizes or closes the foreground window.
The window should not be activated through programmatic access or via keyboard navigation by accessible technology, such as Narrator.
To activate the window, use the SetActiveWindow or
HWND::SetForegroundWindow
function.
The window does not appear on the taskbar by default. To force the
window to appear on the taskbar, use the WS_EX::APPWINDOW style.
Trait Implementations
Performs the &= operation. Read more
Performs the |= operation. Read more
Performs the ^= operation. Read more
Auto Trait Implementations
impl RefUnwindSafe for WS_EX
impl UnwindSafe for WS_EX
Blanket Implementations
Mutably borrows from an owned value. Read more