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PIL and Bitmap from WinAPI

I have code that makes a screenshot of the window using winapi. Then I have to save image to disk and load it again from disk to memory PIL. Is there any way at once without saving to disk to pass this bitmap in the PIL.

import win32gui, win32ui, win32con
import Image

win_name='Book'
bmpfilenamename='1.bmp'
hWnd = win32gui.FindWindow(None, win_name)
windowcor = win32gui.GetWindowRect(hWnd)
w=windowcor[2]-windowcor[0]
h=windowcor[3]-windowcor[1]
wDC = win32gui.GetWindowDC(hWnd)
dcObj=win32ui.CreateDCFromHandle(wDC)
cDC=dcObj.CreateCompatibleDC()
dataBitMap = win32ui.CreateBitmap()
dataBitMap.CreateCompatibleBitmap(dcObj, w, h)
cDC.SelectObject(dataBitMap)
cDC.BitBlt((0,0),(w, h) , dcObj, (0,0), win32con.SRCCOPY)
dataBitMap.SaveBitmapFile(cDC, bmpfilenamename)

#dcObj.DeleteDC()
#cDC.DeleteDC()
#win32gui.ReleaseDC(hWnd, wDC)

im=Image.open(bmpfilenamename)
im.load()
like image 921
Echeg Avatar asked Jan 25 '26 06:01

Echeg


1 Answers

Comment out this line:

dataBitMap.SaveBitmapFile(cDC, bmpfilenamename)

and add this instead:

bmpinfo = dataBitMap.GetInfo()
bmpstr = dataBitMap.GetBitmapBits(True)
im = Image.frombuffer(
    'RGB',
    (bmpinfo['bmWidth'], bmpinfo['bmHeight']),
    bmpstr, 'raw', 'BGRX', 0, 1)

[from another SO question ]

like image 137
Gerrat Avatar answered Jan 27 '26 21:01

Gerrat



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