Checking into Dev Branch.... accidently checked directly into Master previously!

DemoPrograms/Demo_OpenCV_7_Line_Program.py

@@ -0,0 +1,13 @@
+import cv2, PySimpleGUI as sg
+window = sg.Window('Demo Application - OpenCV Integration', [[sg.Image(filename='', key='image')],], location=(800,400))
+cap = cv2.VideoCapture(0)       # Setup the camera as a capture device
+while True:                     # The PSG "Event Loop"
+    event, values = window.Read(timeout=20, timeout_key='timeout')      # get events for the window with 20ms max wait
+    if event is None:  break                                            # if user closed window, quit
+    window.FindElement('image').Update(data=cv2.imencode('.png', cap.read()[1])[1].tobytes()) # Update image in window
+
+"""
+Putting the comment at the bottom so that you can see that the code is indeed 7 lines long.  And, there is nothing
+done out of the ordinary to make it 7 lines long.  There are no ; for example.  OK, so the if statement is on one line
+but that's the only place that you would traditionally see one more line.  So, call it 8 if you want.
+"""

DemoPrograms/Demo_OpenCV_Webcam.py

@@ -1,11 +1,9 @@
 #!/usr/bin/env python
-import sys
+import PySimpleGUI as sg
-if sys.version_info[0] >= 3:
+# import PySimpleGUIQt as sg
-    import PySimpleGUI as sg
-else:
-    import PySimpleGUI27 as sg
 import cv2
 import numpy as np
+import sys
 from sys import exit as exit
 
 """
@@ -13,26 +11,24 @@ Demo program that displays a webcam using OpenCV
 """
 def main():
 
-    sg.ChangeLookAndFeel('LightGreen')
+    sg.ChangeLookAndFeel('Black')
 
     # define the window layout
     layout = [[sg.Text('OpenCV Demo', size=(40, 1), justification='center', font='Helvetica 20')],
               [sg.Image(filename='', key='image')],
               [sg.Button('Record', size=(10, 1), font='Helvetica 14'),
                sg.Button('Stop', size=(10, 1), font='Any 14'),
-              sg.Button('Exit', size=(10, 1), font='Helvetica 14'),
+              sg.Button('Exit', size=(10, 1), font='Helvetica 14'),]]
-               sg.Button('About', size=(10,1), font='Any 14')]]
 
     # create the window and show it without the plot
-    window = sg.Window('Demo Application - OpenCV Integration',
+    window = sg.Window('Demo Application - OpenCV Integration', layout,
                        location=(800,400))
-    window.Layout(layout).Finalize()
 
     # ---===--- Event LOOP Read and display frames, operate the GUI --- #
     cap = cv2.VideoCapture(0)
     recording = False
     while True:
-        event, values = window.Read(timeout=0, timeout_key='timeout')
+        event, values = window.Read(timeout=20)
         if event == 'Exit' or event is None:
             sys.exit(0)
         elif event == 'Record':
@@ -42,13 +38,7 @@ def main():
             img = np.full((480, 640),255)
             imgbytes=cv2.imencode('.png', img)[1].tobytes() #this is faster, shorter and needs less includes
             window.FindElement('image').Update(data=imgbytes)
-        elif event == 'About':
+
-            sg.PopupNoWait('Made with PySimpleGUI',
-                           'www.PySimpleGUI.org',
-                           'Check out how the video keeps playing behind this window.',
-                           'I finally figured out how to display frames from a webcam.',
-                           'ENJOY!  Go make something really cool with this... please!',
-                           keep_on_top=True)
         if recording:
             ret, frame = cap.read()
             imgbytes=cv2.imencode('.png', frame)[1].tobytes() #ditto

DemoPrograms/Demo_OpenCV_Webcam_Minimal.py

@@ -0,0 +1,31 @@
+import PySimpleGUI as sg
+# import PySimpleGUIQt as sg
+# import PySimpleGUIWeb as sg       # has a known flicker problem that's being worked
+import cv2
+
+"""
+    Demo of using OpenCV to show your webcam in a GUI window.
+    This demo will run on tkinter, Qt, and Web(Remi).  The web version flickers at the moment though
+    To exit, right click and choose exit. If on Qt, you'll have to kill the program as there are no right click menus
+    in PySimpleGUIQt (yet).
+"""
+
+sg.ChangeLookAndFeel('Black')
+
+# define the window layout
+layout = [[sg.Image(filename='', key='_IMAGE_', tooltip='Right click for exit menu')],]
+
+# create the window and show it without the plot
+window = sg.Window('Demo Application - OpenCV Integration', layout, location=(800,400),
+                   no_titlebar=True, grab_anywhere=True,
+                   right_click_menu=['&Right', ['E&xit']], )  # if trying Qt, you will need to remove this right click menu
+
+# ---===--- Event LOOP Read and display frames, operate the GUI --- #
+cap = cv2.VideoCapture(0)                               # Setup the OpenCV capture device (webcam)
+while True:
+    event, values = window.Read(timeout=20, timeout_key='timeout')
+    if event in ('Exit', None):
+        break
+    ret, frame = cap.read()                             # Read image from capture device (camera)
+    imgbytes=cv2.imencode('.png', frame)[1].tobytes()   # Convert the image to PNG Bytes
+    window.FindElement('_IMAGE_').Update(data=imgbytes)   # Change the Image Element to show the new image