In This Topic
Resizes canvas of image.
Syntax
var instance = new Vintasoft.Twain.WebAcquiredImageJS(twainDeviceManager, imageId, imageInfo);
var value; // Type: any
// Parameters
var canvasWidth; // Type: number
var canvasHeight; // Type: number
var canvasColor; // Type: number
var imageXPosition; // Type: number
var imageYPosition; // Type: number
value = instance.resizeCanvas(canvasWidth, canvasHeight, canvasColor, imageXPosition, imageYPosition);
function resizeCanvas(
: number,
: number,
: number,
: number,
: number
) : any;
Parameters
- canvasWidth
- Width, in pixels, of the image canvas.
- canvasHeight
- Height, in pixels, of the image canvas.
- canvasColor
- Color of the image canvas. Possible values: 0-AutoDetect, 1-Black, 2-White.
- imageXPosition
- X position, in pixels, of the original image within new image.
- imageYPosition
- Y position, in pixels, of the original image within new image.
Exceptions
Exception | Description |
| Thrown if arguments have wrong type OR image is in processing now OR image processing is failed. |
Remarks
This function sends a synchronous request to resize canvas of image. If you want to use asynchronous request instead of synchronous request, please use WebAcquiredImageJS.resizeCanvasAsync function.
Browser Compatibility
See Also