Declaration
function IECreateThumbnailFromFile(const sInFilename: string;const sOutFilename: string;
MaxX, MaxY: integer;
StretchSmall: Boolean;
JpegQuality: integer;
AutoAdjustOrientation: Boolean = False;
QualityFilter : TResampleFilter = rfLanczos3;
// Border Params
bAddBorder: Boolean = False;
cBorderColor: TColor = clBlack;
// Shadow Params
bAddShadow: Boolean = False;
iBlurRadius : Integer = 4;
iShadowOffset : Integer = 4;
cShadowColor: TColor = clBlack;
// Background Params
cBGColor: TColor = clWhite
): Boolean;
Description
Creates a thumbnail from an image.| Parameter | Description |
|---|---|
| sInFilename | The image to load |
| sOutFilename | The filename of the saved thumbnail |
| MaxX, MaxY | The maximum size of the new image (as the aspect ratio is maintained, one of the dimensions is likely to be less than the specified value) |
| StretchSmall | Set to false to avoid images smaller than MaxX x MaxY from being made larger |
| AutoAdjustOrientation | Sets EnableAdjustOrientation to automatically re-orient JPEG camera images |
| QualityFilter | Specify the quality that is used for rescaling the image |
| bAddBorder | Set to true to add a 1 pixel border to the thumbnail |
| cBorderColor | The color of the added border |
| bAddShadow | Add a solid or soft shadow to the image |
| iBlurRadius | Set to 0 to add a solid shadow or any other value for the width of the Soft Shadow |
| iShadowOffset | The offset of the shadow from the image |
| cShadowColor | The shadow color |
| cBGColor | The color of the image behind the shadow |
Note: You must add the iexHelperFunctions unit to your uses clause
Examples
// Create a thumbnail of MyImage.jpeg at size 160x120 and save to MyImage_Thumb.jpegIECreateThumbnailFromFile('D:\MyImage.jpeg', 'D:\MyImage_Thumb.jpeg', 160, 120, False, 75)
// Load an image as 250x250 thumbnail with a shadow
IECreateThumbnailFromFile( 'D:\MyImage.jpg', // sInFilename
'D:\MyImage_Thumb.jpg' // sOutFilename
250, 250, // MaxX, MaxY
True, // StretchSmall
True, // AutoAdjustOrientation
rfLanczos3, // QualityFilter
False, // bAddBorder
clBlack, // cBorderColor
TRUE, // bAddShadow
5, // iBlurRadius
1, // iShadowOffset
clBlack, // cShadowColor
clWhite ); // cBGColor
