See also ICM_COMPRESS, ICM_COMPRESS_BEGIN, ICM_DECOMPRESS_END, ICM_DRAW_END
wParam = 0; lParam = 0;
Notifies a video compression driver to end compression and free resources allocated for compression.
VCM saves the settings of the most recent ICM_COMPRESS_BEGIN message. ICM_COMPRESS_BEGIN and ICM_COMPRESS_END do not nest. If your driver receives an ICM_COMPRESS_BEGIN message before compression is stopped with ICM_COMPRESS_END, it should restart compression with new parameters.