Declaration

Delphi

function ReadPreviewImage(typeOfPic: Integer; AWidth, AHeight: Integer; var LenOfImage: Integer): Pointer;

C/C++

SOPAD_API LPVOID SOPAD_ReadPreviewImage(int nTypeOfPic, int nWidth, int nHeight, int* pnLenOfImage);

Description

Important: to get the final signature image use ReadHighResBitmap.

Reads real-time signature preview image. The function scales image to the requested size by X and Y without keeping source width/height proportions. It's caller's responsibility to request image size proportionally to sensor size.

Arguments

typeOfPic

Image type

Width and Height

Desired image size

LenOfImage

Length of binary data block with image.

Return value

Function returns pointer to a binary data block which contains preview image in requested format. In case of failure function returns nil pointer.