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Reference for unit 'fpg_base' (#fpgui)

TfpgWindowBase

[Properties (by Name)] [Methods (by Name)] [Events (by Name)]

Abstract class use for representing a Window or Widget

Declaration

Source position: fpg_base.pas line 425

`type TfpgWindowBase = class(TfpgComponent)`
`protected`
`FMouseCursor: TMouseCursor;`
`FWindowType: TWindowType;`
`FWindowAttributes: TWindowAttributes;`
`FTop: TfpgCoord;`
`FLeft: TfpgCoord;`
`FWidth: TfpgCoord;`
`FHeight: TfpgCoord;`
`FPrevTop: TfpgCoord;`
`FPrevLeft: TfpgCoord;`
`FPrevWidth: TfpgCoord;`
`FPrevHeight: TfpgCoord;`
`FMinWidth: TfpgCoord;`
`FMinHeight: TfpgCoord;`
`FMaxHeight: TfpgCoord;`
`FMaxWidth: TfpgCoord;`
`FCanvas: TfpgCanvasBase;`
`FSizeIsDirty: Boolean;`
`FPosIsDirty: Boolean;`
`FMouseCursorIsDirty: Boolean;`
`FOnDragStartDetected: TNotifyEvent;`
`FDragActive: Boolean;`
`FWindowState: TfpgWindowState;`
`function HandleIsValid; virtual; abstract;`
`procedure DoUpdateWindowPosition; virtual; abstract;`
`procedure DoAllocateWindowHandle(); virtual; abstract;`
`procedure DoReleaseWindowHandle; virtual; abstract;`
`procedure DoRemoveWindowLookup; virtual; abstract;`
`procedure DoSetWindowVisible(); virtual; abstract;`
`procedure DoMoveWindow(); virtual; abstract;`
`function DoWindowToScreen(); virtual; abstract;`
`procedure DoSetWindowTitle(); virtual; abstract;`
`procedure DoSetMouseCursor; virtual; abstract;`
`procedure DoDNDEnabled(); virtual; abstract;`
`procedure DoAcceptDrops(); virtual; abstract;`
`function GetWindowState; virtual;`
`procedure SetWindowState(); virtual;`
`procedure DoDragStartDetected; virtual;`
`procedure SetParent(); virtual;`
`function GetParent; virtual;`
`function GetCanvas; virtual;`
`procedure AllocateWindowHandle;`
`procedure ReleaseWindowHandle;`
`procedure SetWindowTitle(); virtual;`
`procedure SetTop();`
`procedure SetLeft();`
`procedure SetHeight();`
`procedure SetWidth();`
`procedure HandleMove(); virtual;`
`procedure HandleResize(); virtual;`
`property OnDragStartDetected: TNotifyEvent; [rw]`
`property WindowState: TfpgWindowState; [r]`
`public`
`constructor Create(); override;`
`procedure AfterConstruction; override;`
`procedure AdjustWindowStyle; virtual;`
`procedure SetWindowParameters; virtual;`
`function Right;`
`function Bottom;`
`procedure UpdateWindowPosition;`		Forces fpGUI to act on window position and size properties
`procedure MoveWindow();`
`function WindowToScreen();`
`function HasParent; override;`
`function GetClientRect; virtual;`
`function GetBoundsRect; virtual;`
`procedure ActivateWindow; virtual; abstract;`
`procedure CaptureMouse; virtual; abstract;`
`procedure ReleaseMouse; virtual; abstract;`
`procedure BringToFront; virtual; abstract;`
`procedure SetFullscreen(); virtual;`
`property HasHandle: Boolean; [r]`
`property WindowType: TWindowType; [rw]`
`property WindowAttributes: TWindowAttributes; [rw]`
`property Left: TfpgCoord; [rw]`		Specifies the horizontal coordinate of the left edge of a component relative to its parent
`property Top: TfpgCoord; [rw]`		Specifies the vertical (X) coordinate of the top edge of a component relative to its parent
`property Width: TfpgCoord; [rw]`		Specifies the horizontal size of the control or form in pixels
`property Height: TfpgCoord; [rw]`		Specifies the vertical size of the control or form in pixels
`property MinWidth: TfpgCoord; [rw]`
`property MinHeight: TfpgCoord; [rw]`
`property MaxWidth: TfpgCoord; [rw]`
`property MaxHeight: TfpgCoord; [rw]`
`property Canvas: TfpgCanvasBase; [r]`
`property Parent: TfpgWindowBase; [rw]`
`property MouseCursor: TMouseCursor; [rw]`
`end;`

Inheritance

`TfpgWindowBase`		Abstract class use for representing a Window or Widget
\|
`TfpgComponent`
\|
`TComponent`
?
`TObject`

Description

fpGUI is a Windowed toolkit. By that we mean that every widget has a window handle. Widgets are essentially embedded windows without titlebars or borders, inside a parent window.