TIEImageEffectsList.CurrentItem

Declaration

property CurrentItem: TIEImageEffect;

Description

Return the last added item.
This makes it easier to set properties for an added item.



Note: If a TImageEnView is being used, you MUST call ImageEnView1.Update() after setting properties for an item

Examples

// Add a rotation effect to the image chain
ImageEnView1.IEBitmap.EffectsChain.Add( peRotate );
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Rotate_Angle := 90;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Rotate_Antialias := ierBicubic;
ImageEnView1.Update();  // Must call update after manually setting properties

// Add a horizontal flip
ImageEnView1.IEBitmap.EffectsChain.Add( peRotate ); // Rotation and flipping type
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Flip_Horz := True;
ImageEnView1.Update();  // Must call update after manually setting properties

// Add an operation to resize image to 1000x1000 (maintaining aspect ratio)
ImageEnView1.IEBitmap.EffectsChain.Add( peResize );
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Resize_Width         := 1000;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Resize_Height        := 1000;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Resize_ByPercent     := False;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Resize_QualityFilter := rfLanczos3;
ImageEnView1.Update();  // Must call update after manually setting properties

// Add an operation to add a 5 pixel black border to the image
ImageEnView1.IEBitmap.EffectsChain.Add( peCrop );  // We will do a negative crop
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Crop_Left    := -5;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Crop_Top     := -5;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Crop_Right   := -5;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Crop_Bottom  := -5;
ImageEnView1.IEBitmap.EffectsChain.CurrentItem.Crop_BackgroundColor := clBlack;
ImageEnView1.Update();  // Must call update after manually setting properties

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