TImageEnMView.GetUnfilteredImage
Declaration
function GetUnfilteredImage(Index: Integer; Direction: Integer = +1; Count: Integer = 0): Integer;
Description
Return the index of a visible frame (i.e one that is not hidden by
filtering).
Result is -1 if no visible frames are found.
| Parameter | Description |
| Index | The index where we still start looking for the next visible image. This value is the index of all images (visible or not). Specify MAXINT to find the last visible image |
| Direction | Whether to look forward (+1) or backward (-1) |
| Count | How many steps to take to find an image. 0 returns just the visible image at that position, 1 returns the first visible image from "Index", 2 would skip that image to find the second one, etc. |
Note: This method will function even if
filtering is inactive
Examples
// Return the first visible image
idx := GetUnfilteredImage( 0 );
// Return the last visible image
idx := GetUnfilteredImage( MAXINT );
// Return the visible image prior to the current one
idx := GetUnfilteredImage( ImageEnMView1.SelectedImage, -1, 1 );
// Return the visible image after to the current one
idx := GetUnfilteredImage( ImageEnMView1.SelectedImage, +1, 1 );
// Return the third visible image
idx := GetUnfilteredImage( 0, +1, 3 );