XgrCopyImage() transfers the image in imageGrid into a displayable grid, starting with the upper-left corner of grid and imageGrid . The contents of imageGrid is not altered. Drawing outside grid is not performed, which clips imageGrid if it is larger than grid.

XgrCopyImage() is a relatively fast operation.

XgrDrawImage() draws imageGrid in grid at the drawpoint.

(startX,startY:endX,endY) are pixel offsets into the image. The left and/or upper portion of an image is skipped if startX and/or startY is non-zero. The right and/or lower portion of an image is not drawn if endX and/or endY is reached before the image data is exhausted. If endX and/or endY is zero, endX and/or endY are set to the x and/or y limits of the image.

Drawing is not performed outside the grid-box.

XgrDrawImage() is a relatively fast operation.