virtual L_INT LPlayBack::ValidateLines(nRow, nLines=1)
Validates the lines of a bitmap, that was added during an LFile object's load callback function, using the LPlayBack::Append function.
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.
Number of lines to validate. In the LFile object's load callback function, this corresponds to the number of lines in the buffer.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
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.
For an example, refer to LPlayBack::Append.
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