Loads the image from the specified file into the internal frame buffer and displays it in ActiveGige window. The method supports BMP, TIFF and JPEG formats.
When the image has been loaded into the internal buffer, the FrameLoaded event will be fired.
The image format is defined by the file extension indicated in the File argument. Use "bmp" for a BMP file, "tif" for TIFF, and "jpg" for JPEG. If none of these extensions are found in the File string, an error will occur.