How to make a screenshot with python, if connected to multiple monitors?
I tried:
import sys
from PyQt4.QtGui import QPixmap, QApplication
app = QApplication(sys.argv)
QPixmap.grabWindow(QApplication.desktop().winId()).save('test.png', 'png')
import ImageGrab
im = ImageGrab.grab()
im.save('test.png', 'PNG')
Both options provide a screenshot, only the primary monitor
If I use winapi:
hWnd = win32gui.FindWindow(None, win_name)
dc = win32gui.GetWindowDC(hWnd)
i_colour = int(win32gui.GetPixel(dc,int(x),int(y)))
rgb = ((i_colour & 0xff), ((i_colour >> 8) & 0xff), ((i_colour >> 16) & 0xff))
I get a picture from a window in the second monitor. But it will be very slow.
If I press key 'printscreen' in the clipboard will be a normal screenshot, with all monitors. Is there a option to get a Full screenshot in Python?
Using a mix of wxPython, win32api and ctypes:
import wx, win32api, win32gui, win32con, ctypes
class App(wx.App):
def OnInit(self):
dll = ctypes.WinDLL('gdi32.dll')
for idx, (hMon, hDC, (left, top, right, bottom)) in enumerate(win32api.EnumDisplayMonitors(None, None)):
hDeskDC = win32gui.CreateDC(win32api.GetMonitorInfo(hMon)['Device'], None, None)
bitmap = wx.EmptyBitmap(right - left, bottom - top)
hMemDC = wx.MemoryDC()
hMemDC.SelectObject(bitmap)
try:
dll.BitBlt(hMemDC.GetHDC(), 0, 0, right - left, bottom - top, int(hDeskDC), 0, 0, win32con.SRCCOPY)
finally:
hMemDC.SelectObject(wx.NullBitmap)
bitmap.SaveFile('screenshot_%02d.bmp' % idx, wx.BITMAP_TYPE_BMP)
win32gui.ReleaseDC(win32gui.GetDesktopWindow(), hDeskDC)
return False
App(0)
My Desktopmagic library provides this functionality for Python 2.6, 2.7, and 3.3+. It can return a PIL/Pillow Image or write a BMP.
