TResourceAllocationChart

TResourceAllocationChart represents the whole chart.

AnyObject		TObject
	A reference to any TObject that you like. The AnyObject property is provided for the convenience of storing additional information for special needs in an application. If the OwnsAnyObject property is true, the object will be deleted when the chart is destroyed.
Bitmap		TBitmap
	The off-screen bitmap containing the chart image.
ChartAppearance		TResourceAllocationChartAppearance
	A member holding properties that control the appearance of the chart.
Count		integer
	The number of resources.
EndAt		TDateTime
	The end date/time of the chart.
FindAvailableResources		(StartDateTime, EndDateTime: TDateTime; List: TList): integer;
	Populates a list with resources that have availability for the specified period.
FindAvailableSlot		function FindAvailableSlot(RequiredResources: TList; StartDate, EndDate, StartTime, EndTime, TimeIncrement, Duration: TDateTime): TDateTime; function FindAvailableSlot(RequiredResources: TList; StartDate, EndDate, StartTime, EndTime, TimeIncrement, Duration: TDateTime; Days: TDays): TDateTime;
	Finds a datetime when all the listed resources are available. Searches between the start and end dates specified, for availability between the start and end times specified.
FindNearestSlot		(point: TPoint): TResourceAllocation
	Finds the allocation nearest to the specified position. Returns nil if there are no allocations..
FindSlot		(point: TPoint): TResourceAllocation
	Finds the allocation displayed at the specified position. Returns nil if none.
FirstDisplayedIndex		integer
	The index of the top-most resource currently being displayed. This property can be set to scroll the display.
FirstDisplayedResource		TResource
	The top-most resource currently being displayed. This property can be set to scroll the display.
HintStyle		TDateTimeStyle
	The style of any automatically generated hints. Defaults to dtDateAndTime.
LastDisplayedIndex		integer
	The index of the bottom-most resource currently being displayed. This property can be set to scroll the display.
LastDisplayedResource		TResource
	The bottom-most resource currently being displayed. This property can be set to scroll the display.
MinimumDrag		integer
	The minimum drag, in pixels, that is recognised. Any drag less than this is ignored.
NumDisplayedResources		integer
	The number of resources currently being displayed.
Options		TResourceAllocationChartOptions
	Various options that control some aspects of the charts bahaviour.
OwnsAnyObject		boolean
	Whether the object referenced by the AnyObject property is owned by this chart. If the object is owned, it is deleted when the chart is destroyed.
PlotRect		TRect
	The area of the plot.
RefreshBitmap		TColor
	Causes the bitmap to be redrawn. This can be useful if the bitmap contains some time-dependant element added in an owner-draw routine.
Resources		[indx: integer]: TResource
	An array of the resources.
RoundTo		double
	When dragging or stretching allocations, the new start and/or end date/time are rounded to this interval.
SelectAllocationCount		integer
	The number of selected allocations.
SelectAllocations		[indx: integer]: TResourceAllocation
	A list if the selected allocations. To select an allocation, set its Selected property.
SizingHandleWidth		integer
	The size of the invisible sizing handle area at the end of each allocation. If the user starts to drag while over this sizing handle, then the allocation is expanded or contracted instead of moved.
StartAt		TDateTime
	The start date/time of the chart.
Sort
	Sorts the resources into alphabetical order.
Sort		(CompareFunction: TResourceCompareFunction)
	Sorts the resources. The user-specified compare function can use any properties of the resources to determine their order.
VerticalPageSize		integer
	The number of resources that will fit onto the display using the current configuration.
OnAdjustDragRectEvent		TAdjustDragRectEvent
	An event that allows the allocation drag or stretch rects to be adjusted. This would only be necessary if you were using owner-draw allocations and the default rect was not appropriate.
OnAdjustPlotRectEvent		TAdjustPlotRectEvent
	An event that allows the plot rectangle to be adjusted. This could be to allow more room for owner-draw date labels or resource names etc.
OnAfterPaint		TNotifyEvent
	An event invoked after the bitmap has been painted to the canvas.
OnAllocationAutoHint		TAllocationAutoHintEvent
	An event invoked before an automatically generated allocation hint is shown. The hint string may be modified by the event handler.
OnAllocationclick		TAllocationEvent
	An event invoked when an allocation is clicked.
OnAllocationDblClick		TAllocationEvent
	An event invoked when an allocation is double-clicked.
OnAllocationDrag		TAllocationDragEvent
	An event invoked when an allocation is dragged. The StartDateTime and EndDateTime arguments may be adjusted to limit the extent of the drag.
OnAllocationDragCancel		TAllocationEvent
	An event invoked when an allocation is dragged then dropped in its original location.
OnAllocationDragEnd		TAllocationEvent
	An event invoked when an allocation is dragged then dropped in a new location.
OnAllocationDragEndQuery		TAllocationDragQueryEvent
	An event invoked when an allocation is dragged then dropped in a new location, but before the change is made. It gives a last chance to cancel the operation.
OnAllocationDragOverResource		TAllocationDragOverResourceEvent
	An event invoked when an allocation from one resource is dragged over another resource. The StartDateTime and EndDateTime arguments can be altered to limit the drag extent, or the Allow argument can be set to false to prevent the drag operation. Note: the OnAllocationSwitchResource event is signalled if the allocation is dropped onto the resource.
OnAllocationDragStart		TAllocationDragStartEvent
	An event invoked when an allocation is first dragged.
OnAllocationDraw		TAllocationDrawEvent
	An event invoked before an allocation is drawn. It allows the allocation to be drawn with specific colours.
OnAllocationRightClick		TAllocationEvent
	An event invoked when an allocation is right-clicked.
OnAllocationSelectionChange		TAllocationEvent
	An event invoked when the selected property of an allocation is changed.
OnAllocationStretch		TAllocationDragEvent
	An event invoked when an allocation is dragged. The StartTime and EndTime arguments may be adjusted to limit the extent of the stretch.
OnAllocationStretchCancel		TAllocationEvent
	An event invoked when an allocation is stretched, but the stretch is then cancelled.
OnAllocationStretchEnd		TAllocationEvent
	An event invoked when an allocation is stretched, after the change has been made.
OnAllocationStretchEndQuery		TAllocationDragQueryEvent
	An event invoked when an allocation is stretched, but before the change has been made. It gives a last chance to cancel the operation.
OnAllocationStretchStart		TAllocationDragQueryEvent
	An event invoked when an allocation is first stretched.
OnAllocationSwitchResource		TAllocationSwitchResourceEvent
	An event invoked when an allocation is dropped onto a different resource.
OnAllocationSwitchResourceQuery		TAllocationSwitchResourceQueryEvent
	An event invoked when an allocation is dropped onto a different resource, but before the change is made. It gives a last chance to cancel the operation.
OnBeforePaint		TNotifyEvent
	An event invoked before the bitmap has been painted to the canvas.
OnChange		TNotifyEvent
	An event invoked when the chart has changed.
OnDateRangeChange		TNotifyEvent
	An event invoked when the chart start and/or end date/time has changed.
OnDragPlot		TDragPlotEvent
	An event invoked when the chart is dragged. The StartTime and EndTime arguments may be adjusted to limit the extent of the drag.
OnDragPlotEnd		TNotifyEvent
	An event invoked when the chart dragging ends.
OnDragPlotStart		TDragPlotStartEvent
	An event invoked when the chart dragging starts.
OnDrawDateLabel		TGetDateTimeEvent
	If this event is set, then the DateLabelBase and DateLabelInterval properties are not used. Instead, this event handler is called to return the date/time of each label. It is called repeatedly until it returns a date/time that is outside the chart range (such as 0.0) This event is most useful when the date labels are required to be at a non-regular interval, such as on the first day of each month.
OnDrawDateLine		TGetDateTimeEvent
	If this event is set, then the DateLineBase and DateLineInterval properties are not used. Instead, this event handler is called to return the date/time of each label. It is called repeatedly until it returns a date/time that is outside the chart range (such as 0.0) This event is most useful when the date lines are required to be at a non-regular interval, such as on the first day of each month.
OnDrawProgress		TDrawProgressEvent
	An event invoked several times during the drawing process. It allows custom graphics to be added at different stages in the drawing process. For example, to add graphics behind the allocations, but on top of the background.
OnDrawResourceName		TDrawResourceNameEvent
	An event invoked before the name of the resource is displayed. This event allows you to control the colour of the text.
OnGetDateTimeLabelText		TGetDateTimeLableEvent
	Allows bespoke date and time labels.
OnGetPlotBackground		TGetPlotBackgroundEvent
	This event to allows the irregular colouring of the plot background. For example, to allow weekends to be in a different colour.
OnResourceNameClick		TResourceEvent
	An event invoked when a resource name is clicked.
OnResourceNameDblClick		TResourceEvent
	An event invoked when a resource name is double-clicked.
OnResourceNameAutoHint		TResourceNameAutoHintEvent
	An event invoked when the mouse is over a resource name. The Hint argument must be set to cause a hint to appear.
OnResourceNameRightClick		TResourceEvent
	An event invoked when a resource name is right-clicked.
OnRightClick		TNotifyEvent
	An event invoked when the chart is right-clicked.
OnOwnerDrawAllocation		TAllocationOwnerDrawEvent
	An event invoked to draw an allocation bar when the racOwnerDrawAllocations option is set.
OnOwnerDrawDateLabel		TOwnerDrawDateLabelEvent
	An event invoked to draw a date label when the racOwnerDrawDateLabels option is set.
OnOwnerDrawResourceName		TOwnerDrawResourceNameEvent
	An event invoked to draw a resource name when the racOwnerDrawResourceNames option is set.
OnPlotRectChange		TNotifyEvent
	An event invoked when the size or location of the plot area changes.
AddResource		(ResourceName: string; Color: TColor = clBtnFace; Style: TResourceDisplayStyle = rsLineArrow): TResource
	This function creates a new resource and adds it to the chart. It returns a reference to the newly created resource.
BeginUpdate		()
	Starts buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
Clear		()
	Deletes all resources and allocations.
DateTimeToX		(dt: TDateTime): integer
	Converts a TDateTime to a chart x-coordinate.
DeselectAllAllocations		()
	Deselects all selected allocations.
EndUpdate		()
	Stops buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
ExchangeResources		(Resource1, Resource2: TResource)
	or	(ResourceIndex1, ResourceIndex2: integer)
	Exchanges two resources so that they swap position in the chart.
FindResource		FindResource(aResourceName: string; CaseSensitive: boolean = false): TResource
	Returns the resource with the specified name, or nil if there is no resource.
FindResourceFromY		(Y: integer; Strict: boolean = true): TResource
	Returns the resource displayed at a specified Y position, or nil if there is no resource. If Strict is false, then it will return the nearest resource.
IndexOf		(Resource: TResource): integer
	Returns the index of a particular resource, or -1 if the resource is not found.
InsertResource		(Place: integer; ResourceName: string; Color: TColor = clBtnFace; Style: TResourceDisplayStyle = rsLineArrow): TResource
	This function creates a resource and inserts it into the chart at a specific index. It returns a reference to the newly created resource.
Invalidate		()
	Invalidates the chart area causing a re-paint.
PaintTo		(Canvas: TCanvas; Rct: TRect; TopIndex: integer): integer
		(Canvas: TCanvas; Rct: TRect; TopIndex: integer; Appearance: TResourceAllocationChartAppearance): integer;
	Draws the chart to the specified rectangle on the specified canvas. Optionally, using the specified appearance instance. Returns the index of the last resource displayed.
ScrollChart		(Increment: TDateTime)
	Scrolls the chart by the specified amount. Use negative increments to scroll to an earlier date/time range.
SetDateTime		(StartAt, EndAt: TDateTime)
	Sets the StartAt and EndAt properties in a single operation.
SortAllocations		()
	Sorts the allocations into increasing date/time order for all resources.
XToDateTime		(x: integer): TDateTime
	Converts a chart x-coordinate to the corresponding date/time.

In addition, the following published properties are inherited from TCustomPanel.

Align	Anchors	BevelInner	BevelOuter	BevelWidth
BorderStyle	BorderWidth	Constraints	Ctl3D	DragCursor
DragKind	DragMode	Hint	ParentCtl3D	ParentShowHint
PopupMenu	ShowHint	OnCanResize	OnClick	OnConstrainedResize
OnDblClick	OnDockDrop	OnDockOver	OnDragDrop	OnDragOver
OnEndDock	OnEndDrag	OnEnter	OnExit	OnGetSiteInfo
OnMouseDown	OnMouseMove	OnMouseUp	OnMouseWheel	OnMouseWheelDown
OnMouseWheelUp	OnResize	OnStartDock	OnStartDrag	OnUnDock

TResource

TResource represents a single resource that can be allocated. There can be none, or many, resources on a TResourceAllocationChart.

AnyObject		TObject
	A reference to any TObject that you like.  The AnyObject property is provided for the convenience of storing additional information for special needs in an application. If the OwnsAnyObject property is true, the object will be deleted when the resource is destroyed.
Allocations		[indx: integer]: TResourceAllocation
	An array giving access to the allocations for the resource.
Color		TColor
	The default colour for allocations of this resource.
Count		integer
	The number of allocations for this resource.
DisplayRect		TRect
	The rectangle used to display allocations for this resource.
Name		string
	The name of the resource.
OwnsAnyObject		boolean
	Whether the object referenced by the AnyObject property is owned by this resource. If the object is owned, it is deleted when the resource is destroyed.
ResourceChart		TCustomResourceAllocationChart
	The chart this resource belongs to.
Style		TResourceDisplayStyle
	The default display style for allocations of this resource.
Tag		longint
	Tag has no predefined meaning. The Tag property is provided for the convenience of storing additional integer value or pointer information for special needs in an application.
AddSlot		(StartAt, EndAt: TDateTime): TResourceAllocation
	Adds a new allocation slot between the times specified.
BeginUpdate		()
	Starts buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
Clear		()
	Deletes all allocations for this resource.
EndUpdate		()
	Stops buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
FindFreeSlot		(MinDateTime, MaxDateTime, Span: TDateTime; Increment: TDateTime = -1): TDateTime
	Finds the first free slot with the specified span, between the two date/times.
FindSlotAt		(DateTime: TDateTime): TResourceAllocation
	Returns the allocation at a particular time, or nil if none.
FindSlotFromPoint		(point: TPoint): TResourceAllocation
	Finds the allocation displayed at the specified position. Returns nil if none.
IndexOf		(Slot: TResourceAllocation): integer
	Returns the index of a particular allocation, or -1 if the allocation is not found.
IsSlotFree		(StartAt, EndAt: TDateTime; IgnoreSlot: TResourceAllocation = nil): boolean
	Determines whether a particular allocation slot is free. Can optionally ignore an allocation when checking.
SortAllocations		()
	Sorts the allocations into increasing date/time order.

To delete a TResource, simply call its Free method. This will automatically delete it from the TResourceAllocationChart.

TResourceAllocation

TResourceAllocation represents a single allocation(or "slot") for a resource. Each resource can be allocated many times, but each allocation must be for a unique time period.

AnyObject		TObject
	A reference to any TObject that you like.  The AnyObject property is provided for the convenience of storing additional information for special needs in an application. If the OwnsAnyObject property is true, the object will be deleted when the allocation is destroyed.
Color		TColor
	The colour of this allocation.
DisplayRect		TRect
	The bounding rectangle for this allocation when displayed on the chart.
EndAt		TDateTime
	The end date/time for the allocation.
OwnsAnyObject		boolean
	Whether the object referenced by the AnyObject property is owned by this allocation. If the object is owned, it is deleted when the allocation is destroyed.
Resource		TResource
	The resource this allocation belongs to.
Selected		TResource
	The resource this allocation belongs to.
StartAt		TDateTime
	The start date/time for the allocation.
Style		TResourceDisplayStyle
	The display style of this allocation.
Tag		longint
	Tag has no predefined meaning. The Tag property is provided for the convenience of storing additional integer value or pointer information for special needs in an application.
BeginUpdate		()
	Starts buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
EndUpdate		()
	Stops buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
SetDateTime		(StartAt, EndAt: TDateTime)
	Sets the StartAt and EndAt properties in a single operation.

To delete a TResourceAllocation, simply call its Free method. This will automatically delete it from the TResource.

TResourceAllocationChartAppearance

TResourceAllocationChartAppearance is a helper class that holds properties that determine the apperance of the chart. You can create different instances of this class to, for example, cause printed output to look different from screen output.

Color		TColor
	The colour of the outer part of the chart underneath the resource names and date labels..
DateFormat		string
	The format used for the date labels. Leave blank to use the default regional setting short date format.
DateLabelBase		TDateTime
	DateLabelBase allows the position of the date/time labels to be specified. Use in conjunction with DateLabelInterval to control the exact position of the date/time labels. Set DateLabelBase to 0 to revert to the automatic positioning of the labels. Note: DateLabelBase and DateLabelInterval are not used if the OnDrawDateLabel event is set.
DateLabelInterval		double
	The interval between date/time labels. Note: DateLabelBase and DateLabelInterval are not used if the OnDrawDateLabel event is set.
DateLineBase		TDateTime
	DateLineBase allows the position of the date/time lines to be specified. Use in conjunction with DateLineInterval to control the exact position of the date/time lines. Set DateLineBase to 0 to revert to the automatic positioning of the lines. Note: DateLineBase and DateLineInterval are not used if the OnDrawDateLine event is set.
DateLineColor		TColor
	The colour of the vertical lines drawn at date/time labels.
DateLineInterval		double
	The interval between date/time lines. Set it to 0.0 to draw date/time lines at the same location as the date/time labels. Note: DateLineBase and DateLineInterval are not used if the OnDrawDateLine event is set.
DateLineStyle		TPenStyle
	The pen style used to draw the date marker lines. Defaults to psDot. The lines are not drawn if the style is set to psClear.
DateTimeFont		TFont
	The font of the date/time labels.
DateTimeStyle		TDateTimeStyle
	The style of date/time labels. Defaults to dtDateAndTime.
PlotBackColor		TColor
	The colour of the plot background area.
PlotBackAlternateColor		TColor
	The PlotBackColor and PlotBackAlternateColor allow the plot background to be displayed in bands of alternate colours. The interval, or span of each coloured band is determined by PlotBackAlternateInterval. Background banding is not displayed if PlotBackColor and PlotBackAlternateColor are the same, or if PlotBackAlternateInterval is 0.
PlotBackAlternateInterval		double
	The interval used for each band of colour.
PlotBorderColor		TColor
	The colour of the lines making up the rectangle surrounding the actual chart area.
ResourceBottomMarginRows		TIntegerZeroOrGrearter
	The number of "rows" to leave clear at the bottom of the chart.
ResourceLineColor		TColor
	The colour of the lines drawn behind resources.
ResourceLineStyle		TPenStyle
	The style of the lines drawn behind resources. The lines are not drawn if the style is set to psClear. The style psSolid is always used if the line width is greater than 1.
ResourceLineWidth		TIntegerZeroOrGrearter
	The width of the lines drawn behind resources. The lines are not drawn if the width is set to 0.
ResourceNameAlignment		TAlignment
	The alignment of the resource names.
ResourceNameFont		TFont
	The font used to display the resource names.
ResourceNameWidth		integer
	The width of the resource name column. Set to 0 to automatically determine the width, or less than zero to prevent the display of the resource names.
ResourceSeparatorLineColor		TColor
	The colour of the lines drawn between adjacent resources.
ResourceSeparatorLineStyle		TPenStyle
	The style of the lines drawn between adjacent resources. The lines are not drawn if the style is set to psClear. The style psSolid is always used if the line width is greater than 1.
ResourceSeparatorLineWidth		TIntegerZeroOrGrearter
	The width of the lines drawn between adjacent resources. The lines are not drawn if the width is set to 0.
ResourceTopMarginRows		TIntegerZeroOrGrearter
	The number of "rows" to leave clear at the top of the chart.
RowGap		TIntegerZeroOrGrearter
	The vertical gap between rows.
RowHeight		TIntegerZeroOrGrearter
	The height of the allocation bars. Set to zero to use a value based on the height of the currently selected font.
ShadowColor		TColor
	The colour of the allocation shadows.
ShadowDepth		TIntegerZeroOrGrearter
	The depth of the allocation shadows.
TimeFormat		string
	The format used for the time labels. Leave blank to use the default regional setting time format.
Assign		(other: TResourceAllocationChartAppearance)
	Starts buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
BeginUpdate		( )
	Starts buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
EndUpdate		( )
	Stops buffering updates. One call to EndUpdate should be called for each call to BeginUpdate.
SetDefaults		( )
	Restores the default settings.

Types and Exceptions

TDragPlotStartEvent	procedure(Sender: TObject; var AllowDrag: boolean) of object
TDragPlotEvent	procedure(Sender: TObject; var StartDateTime, EndDateTime: TDateTime) of object
TResourceEvent	procedure(Sender: TObject; Resource: TResource) of object
TAllocationAutoHintEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; StartDateTime, EndDateTime: TDateTime; ToResource: TResource; var Hint: string) of object
TAllocationEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation) of object
TAllocationDragEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; var StartDateTime, EndDateTime: TDateTime; var AllowDrag: boolean) of object
TAllocationDragStartEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; StartDateTime, EndDateTime: TDateTime; var AllowDrag: boolean) of object
TAllocationDragQueryEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; var AllowDrag: boolean) of object
TAllocationDrawEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; Pen: TPen; Brush: TBrush) of object
TAllocationOwnerDrawEvent	procedure(Sender: TObject; Resource: TResource; Allocation: TResourceAllocation; Canvas: TCanvas; Rct: TRect) of object
TOwnerDrawDateLabelEvent	procedure(Sender: TObject; Canvas: TCanvas; x: integer; DateTime: TDateTime) of object
TOwnerDrawResourceNameEvent	procedure(Sender: TObject; Resource: TResource; Canvas: TCanvas; Rct: TRect) of object
TDrawProgressEvent	procedure(Sender: TObject; Canvas: TCanvas; DrawRect: TRect; Progress: TDrawProgress) of object
TDrawResourceNameEvent	procedure(Sender: TObject; Resource: TResource; var Color: TColor) of object
TGetDateTimeEvent	procedure(Sender: TObject; var DateTime: TDateTime) of object
TGetDateTimeLabelEvent	procedure(Sender: TObject; DateTime: TDateTime; var DateText, TimeText: string) of object;
TGetPlotBackgroundEvent	procedure(Sender: TObject; Canvas: TCanvas; StartDateTime, EndDateTime: TDateTime; var Color: TColor) of object
TAllocationDragOverResourceEvent	procedure(Sender: TObject; FromResource, ToResource: TResource; Allocation: TResourceAllocation; var StartDateTime, EndDateTime: TDateTime; var AllowDrag: boolean) of object
TAllocationSwitchResourceEvent	procedure(Sender: TObject; FromResource, ToResource: TResource; Allocation: TResourceAllocation) of object
TAllocationSwitchResourceQueryEvent	procedure(Sender: TObject; FromResource, ToResource: TResource; Allocation: TResourceAllocation; StartDateTime, EndDateTime: TDateTime; var AllowDrag: boolean) of object
TAdjustDragRectEvent	procedure(Sender: TObject; Allocation: TResourceAllocation; var Rct: TRect) of object
TAdjustPlotRectEvent	procedure(Sender: TObject; Canvas: TCanvas; var PlotRect: TRect) of object
TResourceNameAutoHintEvent	procedure(Sender: TObject; Resource: TResource; var Hint: string) of object
TResourceCompareFunction	function(Resource1, Resource2: TResource): integer of object
TResourceDisplayStyle	rsBlock
	rsBlockArrow
	rsLineArrow
	rsUpCalliper
	rsDownCalliper
	rsRoundRect
	rsEllipse
	rsPointedBlock
	rsLine
TDateTimeStyle	dtTimeOnly, dtDateOnly, dtTimeAndDate, dtDateAndTime, dtNone, dtFirstDateAndTime, dtFirstTimeAndDate, dtOwnerDraw
TDrawProgress	dpBeforeStart, dpFrameDone, dpBackgroundDone, dpLabelsDone, dpShadowsDone, dpAllocationsDone, dpAllDone
TResourceAllocationChartOption	racAllowDragAllocation	Whether the user is allowed to drag allocations.
	racAllowDragScroll	Whether the user is allowed to drag the chart to scroll it.
	racAllowAllocationSwitchResources	Whether the user is allowed to drag allocations from one resource to another.
	racAllowStretchAllocation	Whether the user is allowed to re-size allocations.
	racAutoHint	Whether the hint should be automatically generated when the mouse is over an allocation, or when an allocation is dragged or stretched. The hint is of the form: StartTime - EndTime (TimeInterval)
	racShowFocusRect	Whether the focus rectangle is displayed when the control has focus.
	racWantArrowKeys	Whether the cursor arrow control keys should be trapped by the component. The arrow keys are often used by the form to move between controls.
	racWantTabKeys	Whether the tab key should be trapped by the component. The tab key is often used by the form to move between controls.
	racDateAxisAtTop	Whether the date axis should be labelled at the top of the chart.
	racDateAxisAtBottom	Whether the date axis should be labelled at the bottom of the chart.
	racOwnerDrawAllocations	Whether allocations should be owner-drawn. The OnOwnerDrawAllocation event is called to draw the allocation.
	racOwnerDrawDateLabels	Whether date/time labels should be owner-drawn. The OnOwnerDrawDateLabel event is called to draw the allocation.
	racOwnerDrawResourceNames	Whether resource names should be owner-drawn. The OnOwnerDrawResourceName event is called to draw the allocation.
	racMultiSelect	Whether multiple allocations can be selected. A selected allocation is not displayed any differently from an un-selected allocation - unless the OnAllocationDraw event handler is set to return different pen and/or brush attributes for selected allocations.
	racSortAllocations	Whether allocations should be maintained in increasing Date/Time order.
	racScrollBarOnlyIfNeeded	Only show the scroll bar if it is required, otherwise always show the scroll bar.
TResourceAllocationChartOptions	set of TResourceAllocationChartOption
TDay	(daSunday, daMonday, daTuesday, daWednesday, daThursday, daFriday, daSaturday)
TDays	Set of TDay
TIntegerZeroOrGrearter	0 .. MaxInt
EBadValueException	An exception raised if an end date/time is set before a start date/time.