Description

Finds the margins on a page based on the pixel values and returns the width or height of each margin.

Syntax

RetVal = [BIDIB.] GetDIBMargins hDib, byGrayThreshold, bMarginIsBlack, pLeftMargin, pRightMargin, pTopMargin, pBottomMargin

Parameters

hDib

LONGLONG

Handle to the image.

byGrayThreshold

Integer

The grayscale level that defines what is considered page content. If bMarginIsBlack is set to FALSE, any pixel that is darker than or equal to byGrayThreshold is considered to be page content inside the margins.

If bMarginIsBlack is set to TRUE, any pixel that is lighter than byGrayThreshold is considered to be page content inside the margins.

The value of 0 means black, 255 means white.

bMarginIsBlack

Boolean

Set to TRUE if the page content is lighter than the page, otherwise set to FALSE.

pLeftMargin

Integer

Output value. Returns the width of the left margin in pixels.

pRightMargin

Integer

Output value. Returns the width of the right margin in pixels.

pTopMargin

Integer

Output value. Returns the height of the top margin in pixels.

pBottomMargin

Integer

Output value. Returns the height of the bottom margin in pixels.

Return Value

True on success, otherwise False. Use the BitmaniError method to get the error code.