Fix support for slicing if running from pythonw.exe

Cura/gui/batchRun.py

@@ -187,7 +187,7 @@ class BatchSliceProgressWindow(wx.Frame):
 			self.cmdIndex += 1
 			wx.CallAfter(self.SetTitle, "Building: [%d/%d]"  % (self.sliceCmdList.index(action) + 1, len(self.sliceCmdList)))
 
-			p = subprocess.Popen(action, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+			p = sliceRun.startSliceCommandProcess(action)
 			line = p.stdout.readline()
 			maxValue = 1
 			while(len(line) > 0):

Cura/gui/printWindow.py

@@ -38,7 +38,7 @@ class printProcessMonitor():
 	
 	def loadFile(self, filename):
 		if self.handle == None:
-			self.handle = subprocess.Popen([sys.executable, sys.argv[0], '-r', filename], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+			self.handle = subprocess.Popen([sys.executable, sys.argv[0], '-r', filename], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
 			self.thread = threading.Thread(target=self.Monitor)
 			self.thread.start()
 		else:

Cura/gui/projectPlanner.py

@@ -939,7 +939,7 @@ class ProjectSliceProgressWindow(wx.Frame):
 		for action in self.actionList:
 			wx.CallAfter(self.SetTitle, "Building: [%d/%d]"  % (self.actionList.index(action) + 1, len(self.actionList)))
 			if not action.usePreviousSlice:
-				p = subprocess.Popen(action.sliceCmd, stdout=subprocess.PIPE, stderr=subprocess.STDOUT)
+				p = sliceRun.startSliceCommandProcess(action.sliceCmd)
 				line = p.stdout.readline()
 		
 				maxValue = 1

Cura/gui/sliceProgessPanel.py

@@ -135,14 +135,7 @@ class WorkerThread(threading.Thread):
 		self.start()
 
 	def run(self):
-		kwargs = {} 
-		if subprocess.mswindows: 
-			su = subprocess.STARTUPINFO() 
-			su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
-			su.wShowWindow = subprocess.SW_HIDE
-			kwargs['startupinfo'] = su
-		print self.cmdList[self.fileIdx]
-		p = subprocess.Popen(self.cmdList[self.fileIdx], stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs)
+		p = sliceRun.startSliceCommandProcess(self.cmdList[self.fileIdx])
 		line = p.stdout.readline()
 		self.progressLog = []
 		maxValue = 1

Cura/util/sliceRun.py

@@ -178,3 +178,11 @@ def getSliceCommand(filename):
 			cmd.append(filename)
 		return cmd
 
+def startSliceCommandProcess(cmdList):
+	kwargs = {} 
+	if subprocess.mswindows: 
+		su = subprocess.STARTUPINFO() 
+		su.dwFlags |= subprocess.STARTF_USESHOWWINDOW
+		su.wShowWindow = subprocess.SW_HIDE
+		kwargs['startupinfo'] = su
+	p = subprocess.Popen(cmdList, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE, **kwargs)