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Event handler signalled to custom draw expand / collapse (fold) indicators for a tree node.
Source position: comctrls.pp line 3655
protected property TCustomTreeView.OnCustomDrawArrow : TTVCustomDrawArrowEvent |
OnCustomDrawArrow is a TTVCustomDrawArrowEvent property with the event handler signalled to custom-draw the expand/collapse (fold) indicator for a node on the tree view control.
Arguments to the event handler include:
Use the Canvas for the control to perform drawing operations in the handler routine.
OnCustomDrawArrow is signalled (when assigned) from the DoPaintNode method. If OnCustomDrawArrow has not been assigned, the default drawing routines in the class are used to paint the indicator using the style in the ExpandSignType, ExpandSignSize, ExpandSignWidth, and ExpandSignColor properties.
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Renders the specified tree node to the canvas for the control. |
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Sets the drawing style for the expand / collapse (fold/unfold) indicators for tree nodes. |
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Size of the expand / collapse (fold / unfold) indicators for tree nodes. |
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Width of the lines drawn for the expand/collapse indicator when using the tvestAngleBracket drawing style. |
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Color used to paint expand / collapse (fold / unfold) indicators for tree nodes. |
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Specifies an event handler signalled to draw a custom arrow (expand/collapse indicator) for a node on a tree view control. |
Version 3.2 | Generated 2024-02-25 | Home |