VeryDOC SWF to JPG Converter Command Line can be called with other software application.It will help you tackle the trouble during file format converting,say from video to jpg.

SWF to JPG Converter Command Line supports these options:
1. Run on all the windows platforms.
2. Support various target formats – besides BMP, it supports converting flash video frames to various image formats, e.g., SWF to GIF, SWF to JPG, SWF to JPEG, SWF to PNG, SWF to TGA, SWF to PCX, SWF to TIFF, SWF to PNM, SWF to RAS, and SWF to J2K (JPEG2000).
3. Be compatible with all .NET languages and supports all Operating Systems where .NET Framework or Mono can be installed.
4. Support batch conversion, it can convert frames of more than one flash video to images via batch script.
5. Resize the image,it supports to set the size of the converted images.
6.-$ parameter for registering this application with a registration key.