TLCLCapability enumeration
Represents capabilities used in the LCL.
Declaration
TLCLCapability = (lcAsyncProcess,lcCanDrawOutsideOnPaint,
lcNeedMininimizeAppWithMainForm,lcApplicationTitle,
lcApplicationWindow,lcFormIcon,lcModalWindow,
lcDragDockStartOnTitleClick,
lcAntialiasingEnabledByDefault,lcLMHelpSupport,
lcReceivesLMClearCutCopyPasteReliably,
lcSendsUTF8KeyPress,
lcAllowChildControlsInNativeControls,lcEmulatedMDI,
lcAccessibilitySupport,lcRadialGradientBrush,
lcTransparentWindow,lcTextHint,lcNativeTaskDialog,
lcCanDrawHidden,lcAccelleratorKeys)Description
TLCLCapability is an enumerated type with values that represent
capabilities used in the Lazarus Component Library (
LCL). The
enumeration values identify features or behaviors that may be implemented in
a given widgetset object. The enumeration values can be passed to the
TWidgetSet.GetLCLCapability method to determine whether the
feature or behavior is implemented for the platform.See also
Values
lcAsyncProcess | Supports asynchronous processes. |
lcCanDrawOutsideOnPaint | Supports drawing outside of the OnPaint event for a control. |
lcNeedMininimizeAppWithMainForm | When the main form is minimized, the application is minimized too. |
lcApplicationTitle | Can change application title at run-time. |
lcApplicationWindow | Application has a special root window. |
lcFormIcon | Forms have an icon. |
lcModalWindow | Has native modal window support. |
lcDragDockStartOnTitleClick | Can drag-dock forms by clicking on the title bar. |
lcAntialiasingEnabledByDefault | amDontCare is the same as amOn for the widgetset. |
lcLMHelpSupport | Has support for the LM_HELP command. |
lcReceivesLMClearCutCopyPasteReliably | Carbon does not receive LM_CLEAR, LM_CUT, LM_COPY, LM_PASTE reliably; this affects DB controls. |
lcSendsUTF8KeyPress | The interface sends UTF8KeyPress directly. When not available, it will be emulated in TWinControl.CNChar. |
lcAllowChildControlsInNativeControls | Used by the LCL custom-drawn widgetset so that it can inject child controls in native ones. |
lcEmulatedMDI | Provides emulation of MDI commands for widgetsets which do not provide native MDI handling. |
lcAccessibilitySupport | Indicates accessibility is implemented; mostly for TCustomControl descendents as native widgetsets should have in-built accessibility. |
lcRadialGradientBrush | Indicates that CreateBrushWithRadialGradient is supported to create a brush with a radial gradient pattern. |
lcTransparentWindow | Has the ability to pass mouse messages through a window (on win32 LM_NCHITTEST with HTTRANSPARENT result). |
lcTextHint | Has native TextHint support. |
lcNativeTaskDialog | Task dialogs on MS Windows for widgetsets different than win32/wince. Used in LCLTaskDialog. Qt/Qt5 must set this option to False otherwise taskdialog segfaults. |
lcCanDrawHidden | The system rendering engine might request a hidden control to be drawn (macOS 10.9 and later). |
lcAccelleratorKeys | Supports UI accelerator keys using & as a prefix for the accelerator character. |
An experiment, built from Lazarus main 2dfa93c66e of 10-22-2026. Not the official Lazarus documentation.