Request additional flag for ImageGenerateRoIMask

// current approach to remove drawing that is not to be used in mask
// another option is to move the drawing to a different layer (e.g. Overlayer) and back to ProgFront
// could also repeat the steps on a group list gList
 
Function toggle_group(string wname, string gname)
 
    string gCMD = "DoWindow/F " + wname + ";SetDrawLayer ProgFront;DrawAction begininsert;"
 
    DrawAction/W=$wname/L=ProgFront getgroup=$gname, commands
    gCMD += ReplaceString("\r",ReplaceString("\t",GrepList(S_recreation,"^// ;*",1,"\r"),""),";")
    DrawAction/W=$wname/L=overlay getgroup=$gname, delete
 
    DoUpdate/W=$wname
 
// perform the image mask operation
 
    ImageGenerateROIMask/W=wname imageinstance
 
// return the removed drawing
 
    Execute/Z gCMD
    
    return 0
end
 
// desired approach
 
Function mask_onlygroup(string wname, string gname)
 
// perform the image mask operation
 
    ImageGenerateROIMask/W=wname/G=gname imageinstance
    
    return 0
end