Classes and Member Functions > LPlayBack > LPlayBack Member Functions > LPlayBack::ValidateLines

LPlayBack::ValidateLines

#include "ltwrappr.h"

virtual L_INT LPlayBack::ValidateLines(nRow, nLines=1)

L_INT nRow;	row number of the first line to validate
L_INT nLines;	number of lines to validate

Validates the lines of a bitmap, that was added during an LFile object's load callback function, using the LPlayBack::Append function.

Parameter	Description
nRow	Row number of the first line in the bitmap to validate. In the LFile object's load callback function, this corresponds to the first line in the buffer.
nLines	Number of lines to validate. In the LFile object's load callback function, this corresponds to the number of lines in the buffer.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

The LPlayBack::Append function enables you to update a bitmap list in an LFile object's load callback function, so that you can play an animation file as it is being loaded. The LPlayBack::ValidateLines() function lets you validate the lines that the animation playback engine will render to the target bitmap.

Functions:	Class Members
Topics:	Raster Image Functions: Creating and Maintaining Lists of Images
	Implementing Animation

LPlayBack::ValidateLines

Returns

Comments

Example