TIECropToolInteraction.LockHeight

Declaration

property LockHeight: Integer;

Description

Allows the height of the crop selection to be locked to a specific size. e.g. 200 pixels high.

Note:
◼ Values refer to bitmap pixels, not a screen dimension
◼ Can be used independently of LockWidth
◼ if iecoSizeLocksAreMinimums is specified in Options, then this value is a minimum only
◼ Has no effect if LockAspectRatio > 0 (unless iecoSizeLocksAreMinimums is used)

Example

// we want standard behavior
ImageEnView1.CropTool.LockHeight  := 0;
ImageEnView1.CropTool.LockHeight := 0;

// Lock the height to 500 pixels (but width can be changed)
ImageEnView1.CropTool.LockAspectRatio := 0;
ImageEnView1.CropTool.LockHeight  := 500;
ImageEnView1.CropTool.LockWidth := 0;

// Lock width and height to half the image size
ImageEnView1.CropTool.LockAspectRatio := 0;
ImageEnView1.CropTool.LockWidth  := ImageEnView1.IEBitmap.Width div 2;
ImageEnView1.CropTool.LockHeight := ImageEnView1.IEBitmap.Height div 2;

// Do not allow a selection smaller than 100x100 pixels
ImageEnView1.CropTool.Options := [iecoSizeLocksAreMinimums];
ImageEnView1.CropTool.LockWidth  := 100;
ImageEnView1.CropTool.LockHeight := 100;

Demo

See Also

◼ LockWidth
◼ LockAspectRatio
◼ Options
◼ SelectionAbsHeight

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