Index: trunk/psModules/src/imcombine/pmSubtractionVisual.c
===================================================================
--- trunk/psModules/src/imcombine/pmSubtractionVisual.c	(revision 21422)
+++ trunk/psModules/src/imcombine/pmSubtractionVisual.c	(revision 23242)
@@ -28,5 +28,4 @@
 
 //variables to determine when things are plotted
-static bool isVisual             = false;
 static bool plotConvKernels      = true;
 static bool plotStamps           = true;
@@ -42,9 +41,4 @@
 // Initialization Routines
 
-/** start or stop plotting */
-bool pmSubtractionSetVisual (bool mode) {
-    isVisual = mode;
-    return true;
-}
 
 
@@ -65,11 +59,10 @@
  *    @return true for success */
 bool pmSubtractionVisualPlotConvKernels(psImage *convKernels) {
-    if (!isVisual || !plotConvKernels) return true;
+    if (!pmVisualIsVisual() || !plotConvKernels) return true;
     if (!pmVisualInitWindow(&kapa, "ppSub:Images")) {
-        isVisual = false;
         return false;
     }
     pmVisualScaleImage(kapa, convKernels, "Convolution_Kernels", 0, true);
-    pmVisualAskUser(&plotConvKernels, &isVisual);
+    pmVisualAskUser(&plotConvKernels);
     return true;
 }
@@ -80,11 +73,9 @@
     @return true for success */
 bool pmSubtractionVisualPlotStamps(pmSubtractionStampList *stamps, pmReadout *ro) {
-    if (!isVisual || !plotStamps) return true;
+    if (!pmVisualIsVisual() || !plotStamps) return true;
     if (!pmVisualInitWindow (&kapa, "ppSub:Images")) {
-        isVisual = false;
         return false;
     }
     if (!pmVisualInitWindow (&kapa2, "ppSub:StampMasterImage")) {
-        isVisual = false;
         return false;
     }
@@ -145,5 +136,5 @@
     pmVisualScaleImage(kapa, canvas, "Subtraction_Stamps", 0, true);
 
-    pmVisualAskUser(&plotStamps, &isVisual);
+    pmVisualAskUser(&plotStamps);
     return true;
 }
@@ -152,7 +143,6 @@
 bool pmSubtractionVisualPlotLeastSquares (pmSubtractionStampList *stamps, bool dual) {
 
-    if (!isVisual || !plotLeastSquares) return true;
+    if (!pmVisualIsVisual() || !plotLeastSquares) return true;
     if (!pmVisualInitWindow (&kapa, "PPSub:Images")) {
-        isVisual = false;
         return false;
     }
@@ -209,5 +199,5 @@
     pmVisualScaleImage(kapa, canvas32, "Least_Squares", 0, true);
 
-    pmVisualAskUser(&plotLeastSquares, &isVisual);
+    pmVisualAskUser(&plotLeastSquares);
     psFree(canvas);
     psFree(canvas32);
@@ -216,7 +206,6 @@
 
 bool pmSubtractionVisualShowSubtraction(psImage *image, psImage *ref, psImage *sub) {
-    if (!isVisual || !plotImage) return true;
+    if (!pmVisualIsVisual() || !plotImage) return true;
     if (!pmVisualInitWindow (&kapa, "PPSub:Images")) {
-        isVisual = false;
         return false;
     }
@@ -225,5 +214,5 @@
     pmVisualScaleImage(kapa, ref, "Reference", 1, true);
     pmVisualScaleImage(kapa, sub, "Subtraction", 2, true);
-    pmVisualAskUser(&plotImage, &isVisual);
+    pmVisualAskUser(&plotImage);
     return true;
 }
@@ -267,5 +256,4 @@
 
 #else
-bool pmSubtractionSetVisual (bool mode) {return true;}
 bool pmSubtractionVisualClose() {return true;}
 bool pmSubtractionVisualPlotConvKernels(psImage *convKernels) {return true;}