Assembly: Forms;
The Form class is used to create custom forms.
It is used only in the desktop application.
| Property name | Brief description | |
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The CreateForm constructor creates a new form. |
| Property name | Brief description | |
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The Active property returns parameters of the form that is active at the moment. | |
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The MakeShortcut property returns the value that corresponds to the combination of hot keys that should be assigned for any action. |
| Property name | Brief description | |
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The ActiveControl property determines the component that was the last focused component on the form. | |
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The BorderStyle property determines a component border style. | |
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The Constraints property sets constraints on the component sizes in pixels. | |
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The Icon property determines the custom icon that is displayed in the form header. | |
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The MainMenu property determines a main menu of the form. | |
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The MaxTabLength property determines the maximum allowed header length of the MDI child form. If this length is exceeded in the header of tab that corresponds to this form, the shortened header is displayed. | |
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The MDIActive property determines the MDI child form that is active at the moment. | |
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The MDIChildCount property returns the number of MDI child forms. | |
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The MDIChildren property returns parameters of the MDI child form. | |
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The MDITabLocation property determines location of the tabs of the MDI child windows in the area of the main MDI form. | |
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The MDITabMenu property determines the context menu that is called in the area of tabs that correspond to the MDI child forms. | |
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The ModalResult property determines result of form execution. | |
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The ParentWindow property returns parent window. | |
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The Position property determines position of the form window on the screen. | |
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The Resources property determines the resources object, from which the text and graphic values are taken for form components. | |
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The ShowOnTaskbar property determines whether the form icon is displayed in the taskbar when the form is executed. | |
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The StartupObject property returns the description of the object that is started directly from object. | |
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The ToolbarPopupMenu property determines the context menu that is displayed on clicking the additional mouse button in the main menu area or in the form toolbars area. | |
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The TopMost property determines how the form is placed relative to other windows during its execution. | |
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The WindowState property determines state of the form on the screen during startup. | |
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The WindowStyle property determines a form style. |
| Property name | Brief description | |
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Align | The Align property determines component alignment within its parent component. |
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AllowDrag | The AllowDrag property determines whether an object can be dragged from a component. |
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AllowDrop | The AllowDrop property determines whether a component can accept a dragged object. |
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Anchors | The Anchors property returns settings determining % of the resize for the current component when the parent component is resized. |
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Brush | The Brush property determines the brush that is used to fill the component area. |
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ClientHeight | The ClientHeight property determines the height of the client component area. |
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ClientWidth | The ClientWidth property determines the width of the client component area. |
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Color | The Color property determines a component background color. |
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Cursor | The Cursor property determines how the cursor looks like when is it hovered over a component during form execution. |
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Enabled | The Enabled property determines whether a component is available for the user. |
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Focused | The Focused property returns True if the focus is set to the component. |
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Font | The Font property determines parameters of the font that is used to display text in a component. |
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Height | The Height property determines component height in pixels. |
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HelpContext | The HelpContext property determines a unique index for a section of a context help for this component. |
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Hint | The Hint property determines a tooltip text displayed on hovering over a component. |
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HintTimeout | The HintTimeout property determines for how long a tooltip is displayed. |
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Left | The Left property determines a coordinate of the component left edge in pixels. |
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Parent | The Parent property determines a parent component. |
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ParentColor | The ParentColor property determines whether a component inherits the color of the parent component. |
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ParentFont | The ParentFont property determines whether a component uses the font of the parent component. |
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ParentShowHint | The ParentShowHint property determines when a tooltip is displayed. |
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PopupMenu | The PopupMenu property determines the context menu that opens when the component is clicked with the right mouse button. |
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Scrolls | The Scrolls property returns parameters of component's scrollbars. |
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ShowHint | The ShowHint property determines whether a tooltip is displayed when a component is hovered. |
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TabOrder | The TabOrder property determines a component position in a tab order. |
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TabStop | The TabStop property determines whether the component must be focused when the Tab button is pressed. |
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Text | The Text property determines a row identifying a component for the user. |
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Top | The Top property determines a coordinate of the component top edge in pixels. |
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Visible | The Visible property determines whether the component is displayed when a form is executed. |
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Width | The Width property determines horizontal size of a component in pixels. |
| Property name | Brief description | |
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ComponentCount | The ComponentCount property returns the number of child components located on the parent component. |
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Components | The Components property returns the child component, which index is passed by the input parameter. |
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Data | The Data property is used to store any custom data. |
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Name | The Name property determines a component name. |
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Tag | The compiler does not use the Tag property. The user can change the value of the Tag property and use it as he wishes. |
| Method name | Brief description | |
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BeginOperation | The BeginOperation method activates the status bar, which displays text, timer and animated progress bar. |
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BeginUpdate | The BeginUpdate method deactivates form rerendering. |
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Close | The Close method closes a form. |
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EndOperation | The EndOperation method deactivates process indicator. |
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EndUpdate | The EndUpdate method resumes form rerendering. |
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EnterContextHelpMode | The EnterContextHelpMode method turns a form in the help display mode. |
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FreeComponent | The FreeComponent method enables the user to visually remove a component. |
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LoadState | The LoadState method loads parameters of the form controls from the registry. |
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MDICascade | The MDICascade method places all child windows in the cascade mode. |
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MDIIconArrange | The MDIIconArrange method arranges all minimized MDI child forms. |
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MDIMaximize | The MDIMaximize method maximizes the specified MDI child form within the parent form. |
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MDIMinimize | The MDIMinimize method minimizes the specified MDI child form within the parent form. |
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MDINext | The MDINext method activates a window of the next MDI child form. |
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MDIPrev | The MDIPrev method activates a window of the previous MDI child form. |
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MDIRestore | The MDIRestore method restores the initial sizes of the window of the specified MDI child form. |
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MDITile | The MDITile method forms all child windows in the specified order. |
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PostCommand | The PostCommand method enables sending a command to a form. |
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SaveState | The SaveState method saves parameters of the form controls in the registry. |
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SendCommand | The SendCommand methods enables sending the command to a form and get result of its execution. |
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SetOperationText | The SetOperationText method changes the text that is displayed in the status bar. |
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ShowModal | The ShowModal method enables the user to open modally the form, for which this method is called. |
| Method name | Brief description | |
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ClientToScreen | The ClientToScreen method converts point coordinates specified relative to the component's coordinate system into screen coordinates. |
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DoDragDrop | The DoDragDrop method enables the user to start dragging operation. |
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GetImage | The GetImage method returns a graphic presentation of a component together with all child components. |
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ScreenToClient | The ScreenToClient method converts point's screen coordinates into coordinates specified relative to the component's coordinate system. |
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SetFocus | The SetFocus method sets focus to this component. |
| Event name | Brief description | |
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The OnActivate event occurs when the form or one of its child components receives focus. | |
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The OnClose event occurs right before a form is closed. | |
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The OnCloseQuery event occurs when the form receives a command for closing. | |
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The OnCommand event occurs when a command is sent to this form from another one. | |
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The OnCreate event occurs at the moment a form is created. | |
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The OnDeactivate event occurs when the form or one of its child components loses focus. | |
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The OnHelp event occurs when the component is pressed if the mode of help displaying is active or on pressing the F1 button for the active component. | |
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The OnHide event occurs right before form becomes invisible. | |
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The OnMDIActivate event occurs when an active child MDI form is changed. | |
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The OnMDIClose event occurs before the MDI child form is closed. | |
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The OnResize event occurs after the form size has been changed. | |
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The OnShow event occurs right before a form is displayed. |
| Event name | Brief description | |
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OnBeginDrag | The OnBeginDrag event occurs for a component, when the user starts to drag an object from the component. |
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OnClick | The OnlClick event occurs if the user clicks the component area. |
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OnControlMove | The OnControlMove event occurs when the component is moved. |
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OnControlResize | The OnControlResize event occurs when the component is resized. |
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OnDblClick | The OnDblClick event occurs if the user double-clicks the component area. |
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OnDragDrop | The OnDragDrop event occurs for the component if the user drops a dragged object over it. |
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OnDragEnter | The OnDragEnter event occurs when a dragged object enters the component area. |
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OnDragLeave | The OnDragLeave event occurs when a dragged object leaves component borders. |
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OnDragOver | The OnDragOver event occurs for the component when the user drags an object over it. |
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OnEnter | The OnEnter event occurs when the component receives focus. |
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OnExit | The OnExit event occurs when the component loses focus. |
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OnHScroll | The OnHScroll event occurs when horizontal scrollbar slider changes its position. |
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OnKeyDown | The OnKeyDown event occurs if the component is focused and a keyboard key is pressed. |
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OnKeyPress | The OnKeyPress event occurs if the component is focused when the user presses a character key. |
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OnKeyPreview | The OnKeyPreview event occurs prior to each event related to key pressing. |
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OnKeyUp | The OnKeyUp event occurs if the component is focused and the user releases any button previously pressed. |
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OnMouseDown | The OnMouseDown event occurs if the pointer is in the component area and a mouse key is pressed. |
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OnMouseEnter | The OnMouseEnter event occurs when the mouse cursor enters the component area. |
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OnMouseHover | The OnMouseHover event occurs when the mouse cursor is held in the component area. |
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OnMouseLeave | The OnMouseLeave event occurs when the mouse cursor leaves the component area. |
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OnMouseMove | The OnMouseMove event occurs when the mouse cursor moves over a component. |
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OnMouseUp | The OnMouseUp event occurs when the mouse button is released and the cursor is in the component area. |
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OnMouseWheel | The OnMouseWheel event occurs if the component is focused when the user rotates a mouse wheel. |
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OnVScroll | The OnVScroll event occurs when vertical scrollbar slider changes its position. |
See also: