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ImageViewer Class Methods

Summary

For a list of all members of this type, see ImageViewer members

Public Methods

	Name	Description
	BeginRender	Stops the viewer from rendering the content if any change is applied. This is useful to increase the control's speed efficiency.
	BeginTransform	Stops the viewer from updating the transformations matrices and updating the view layout. This is useful to increase the control's speed efficiency.
	BeginUpdate	Stops the viewer from updating the transformations matrices, view layout and rendering the content if any change is applied. This is useful to increase the control's speed efficiency.
	CenterAtPoint	Centers the view display at the specified point.
	CombineFloater	Combines the floaters with the images for all items inside this ImageViewer
	ConvertBoundsToView	Converts a rectangle value from logical (excluding the current transformation) to physical (in control pixel coordinates).
	ConvertPoint	Converts a LeadPointD from one coordinates to the other.
	ConvertPoints	Converts an array of LeadPoint from one coordinates to the other.
	ConvertRect	Converts a LeadRectD from one coordinates to the other.
	ConvertTransform	Converts a transformation matrix relative to one item to another.
	DisableSync	Temporarily disable syncing for a group while keeping the group itself intact.
	EnableSync	Re-enable syncing for a group.
	EndRender	Instruct the viewer that updates are completed and rendering of content can be resumed.
	EndTransform	Instruct the viewer that updates are completed and updating transformations and view layout can be resumed.
	EndUpdate	Instruct the viewer that updates are completed and updating the transformations matrices, view layout and rendering of content can be resumed.
	EnsureBoundsVisible	Ensures that the specified rectangle area is visible in the viewer.
	EnsureItemVisible	Ensures that an item is visible in the viewer.
	EnsureItemVisibleByIndex	Ensures that the item at the specified index is visible in the viewer.
	FindNearestItem	Gets the item nearest to the specified physical (in viewer pixel) coordinates.
	GetAllVisibleItems	Gets an array of all the visible ImageViewerItems for the specified ImageViewerItemPart.
	GetDestinationRectangle	Utility method to adjust the given LeadRectD based on source size, size mode and alignment
	GetFirstVisibleItem	First visible item or part of it in the viewer.
	GetFirstVisibleItemIndex	Index for the first visible item or part of it in the viewer.
	GetImageTransformWithDpi	Transformation matrix of the image with or without DPI scaling (single item mode).
	GetItemBounds	Current logical (excluding the current transformation) bounds of any part of an item.
	GetItemContentTransform	Transformation matrix of the content of an item.
	GetItemFloaterSize	Floater image size of an item.
	GetItemFloaterTransform	Transformation matrix of the floater of an item.
	GetItemImageFloatingPointTransform	Transformation matrix of the image of an item without rounded values.
	GetItemImageSize	Image size of an item.
	GetItemImageTransform	Transformation matrix of the image of an item.
	GetItemImageTransformWithDpi	Transformation matrix of the image of an item with or without DPI scaling.
	GetItemTransform	Transformation matrix of the whole item.
	GetItemViewBounds	Current physical (in control pixel coordinates) bounds of any part of an item.
	GetLargestVisibleItem	Largest visible item or part of it in the viewer.
	GetLargestVisibleItemIndex	Index for the largest visible item or part of it in the viewer.
	GetLastVisibleItem	Last visible item or part of it in the viewer.
	GetLastVisibleItemIndex	Index for the last visible item or part of it in the viewer.
	GetScaleFactors	Utility method to calculate the scale factor needed to perform the specified size mode using a source and destination size.
	GetSynced	Returns a list of all ImageViewer instances that match the given sync.
	GetViewBounds	Current bounds of the view in physical (in control pixel) coordinates
	GotoItem	Scroll to the top-left of an item.
	GotoItemByIndex	Scroll to the top-left of an item giving its index.
	HitTestFloater	First item that has its floater under a physical (in viewer pixel) coordinates.
	HitTestItem	First item that is under a physical (in viewer pixel) coordinates.
	HitTestItemPart	Specific part of the item under a physical (in viewer pixel) coordinates.
	HitTestItems	Items that intersect with a rectangle in physical (in viewer pixel) coordinates.
	Invalidate	Invalidates a portion of the entire surface of the control and causes the control to be redrawn.
	InvalidateItem	Invalidate an item.
	InvalidateItemByIndex	Invalidate the item at the specified index.
	IsItemVisible	Gets a value that indicate whether the specified item or part is currently visible in the viewer.
	IsSyncDisabled	Determines if syncing for a group has been disabled.
	OnTransformChanged	Raises the OnTransformChanged event.
	OnVirtualizeItemReady	Raises the VirtualizeItemReady event.
	RenderRedirect	Render the content of the viewer to an external context.
	Reset	Resets the display properties to their default values (single item mode).
	RestrictScrollOffset	Ensures a scroll position is inside the minimum and maximum scroll value currently allowed.
	ScrollBy	Scrolls the viewer by the specified amount in pixels.
	ScrollByRestrict	Scrolls the viewer by the specified amount in pixels while always restricting the value to the current minimum and maximum allowed.
	Sync	Establishes sync groups.
	TranslateItemScaleFactor	Translates an item horizontally or vertically a given amount of pixels regardless of the current zoom value.
	Unsync	Removes a single viewer from the sync group.
	UnsyncGroup	Un-syncs all members of the sync group of the given sync ID.
	UpdateTransform	Re-calculates the transformation matrices and update the view layout.
	Zoom	Zooms or changes the size mode of the view.
	ZoomToRect	Zooms the view to the specified rectangle.

Protected Methods

	Name	Description
	Dispose(bool)	Clean up any resources being used.
	GetItemImageTransformScaleOnly	Transformation matrix of the image of an item without translation and rotation.
	IsInputKey	Overrides System.Windows.Forms.Control.IsInputKey(System.Windows.Forms.Keys).
	OnActiveItemChanged	Raises the ActiveItemChanged event.
	OnDragDrop	Overrides System.Windows.Forms.Control.OnDragDrop(System.Windows.Forms.DragEventArgs).
	OnDragEnter	Overrides System.Windows.Forms.Control.OnDragEnter(System.Windows.Forms.DragEventArgs).
	OnDragLeave	Overrides System.Windows.Forms.Control.OnDragLeave(System.EventArgs).
	OnDragOver	Overrides System.Windows.Forms.Control.OnDragOver(System.Windows.Forms.DragEventArgs).
	OnItemChanged	Raises the ItemChanged event.
	OnItemDragDrop	Raises the ItemDragDrop event.
	OnItemError	Raises the ItemError event.
	OnMouseDown	Overrides System.Windows.Forms.Control.OnMouseDown(System.Windows.Forms.MouseEventArgs).
	OnPaint	Overrides System.Windows.Forms.Control.OnPaint(System.Windows.Forms.PaintEventArgs).
	OnPaintBackground	Overrides System.Windows.Forms.Control.OnPaintBackground(System.Windows.Forms.PaintEventArgs).
	OnPostRender	Raises the PostRender event.
	OnPostRenderItem	Raises the PostRenderItem event.
	OnPreRender	Raises the PreRender event.
	OnPreRenderItem	Raises the PreRenderItem event.
	OnPropertyChanged	Raises the PropertyChanged event.
	OnRedirectRender	Raises the RedirectRender event.
	OnRender	Raises the Render event.
	OnRenderBackground	Raises the RenderBackground event.
	OnRenderBorder	Raises the RenderBorder event.
	OnRenderError	Raises the RenderError event.
	OnRenderImage	Raises the RenderImage event.
	OnRenderItem	Raises the RenderItem event.
	OnRenderItemFloater	Raises the RenderItemFloater event.
	OnRenderItemFloaterRegion	Raises the RenderItemFloaterRegion event.
	OnRenderItemRegion	Raises the RenderItemRegion event.
	OnRenderShadow	Raises the RenderShadow event.
	OnRenderText	Raises the RenderText event.
	OnScrollOffsetChanged	Raises the ScrollOffsetChanged event.
	OnSelectedItemsChanged	Raises the SelectedItemsChanged event.
	OnSizeChanged	Overrides System.Windows.Forms.Control.OnSizeChanged(System.EventArgs).
	ProcessDropImage	Processes the image dropped on this ImageViewer during a drag/drop operation.
	WndProc	Overrides System.Windows.Forms.Control.WndProc(System.Windows.Forms.Message@).

Reference

ImageViewer Class

Leadtools.Controls Namespace

Help Version 19.0.2017.10.27