| Description: | Add a photo mask to the project, for use with DSM/SmartMatch or photo texturing. See Texture and DSM Mask image file names for information on masking | 
| Syntax: | "AddPhotoMask photoID useForDSM useForTexture imageMaskFile" where: photoID is a unique identifier number for the photograph (>=1), “useForDSM” is a boolean flag to set the mask for use with DSM, “useForTexture” is a boolean flag to set the mask for use with photo texturing, " imageMaskFile " is the name of the mask image file to be assigned to the photograph (full path, can contain spaces). | 
| Return: | "1" if successful or "0" if not. Failure returns - insufficient number of parameters | 
| Example: | "AddPhotoMask 1 1 1 maskPhoto1.jpg" return: "1" |