问题描述
函数是从 Tying to set non-interactable (click-through) overlay with TkInter 复制过来的
不仅窗口不能点击,png也不透明。 PNG 在这里:https://drive.google.com/file/d/1tlLl2hjPq38mc_c_PpMhkKDlP1HqvDY5/view
这是窗口的样子:
我错过了什么?
from tkinter import*
import win32gui
from win32gui import GetForegroundWindow,ShowWindow,FindWindow,SetwindowLong,getwindowlong,SetlayeredWindowAttributes
from win32con import SW_MINIMIZE,WS_EX_layered,WS_EX_TRANSPARENT,GWL_EXSTYLE
def setClickthrough(hwnd):
try:
styles = getwindowlong(hwnd,GWL_EXSTYLE)
styles |= WS_EX_layered | WS_EX_TRANSPARENT
SetwindowLong(hwnd,GWL_EXSTYLE,styles)
SetlayeredWindowAttributes(hwnd,255,win32con.LWA_ALPHA)
except Exception as e:
print(e)
root = Tk()
root.geometry("100x100")
root.overrideredirect(1)
root.attributes('-topmost',1)
pic = PhotoImage(file=r'on2.png')
root.wm_attributes("-transparentcolor",'white')
boardbutton = Label(root,image=pic,bd=0,bg='white')
boardbutton.pack()
setClickthrough(root.winfo_id())
root.mainloop()
解决方法
我已经获取了 linked question 的代码并使其工作。见下面的代码:
from tkinter import *
from PIL import Image,ImageTk
import win32gui
import win32con
def setClickthrough(hwnd):
print("setting window properties")
try:
styles = win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE)
styles = win32con.WS_EX_LAYERED | win32con.WS_EX_TRANSPARENT
win32gui.SetWindowLong(hwnd,win32con.GWL_EXSTYLE,styles)
win32gui.SetLayeredWindowAttributes(hwnd,255,win32con.LWA_ALPHA)
except Exception as e:
print(e)
# Dimensions
width = 1920 #self.winfo_screenwidth()
height = 1080 #self.winfo_screenheight()
root = Tk()
root.geometry('%dx%d' % (width,height))
root.title("Applepie")
root.attributes('-transparentcolor','white','-topmost',1)
root.config(bg='white')
root.attributes("-alpha",0.25)
root.wm_attributes("-topmost",1)
bg = Canvas(root,width=width,height=height,bg='white')
setClickthrough(bg.winfo_id())
frame = ImageTk.PhotoImage(file="example.png")
bg.create_image(1920/2,1080/2,image=frame)
bg.pack()
root.mainloop()
您的尝试和工作示例之间的重要区别似乎是使用了画布的 hwnd
而不是窗口。
我不是完全按照你的意愿去做,但我提供了一些代码来输出我这个,希望能满足你的需求。额外的代码只是删除装饰 (overrideredirect(1)
) 并将窗口大小调整为 img 大小,并将其放置在屏幕中间。:
from tkinter import *
from PIL import Image,win32con.LWA_ALPHA)
except Exception as e:
print(e)
def size_position_for_picture():
bbox = bg.bbox(img_id)
w,h = bbox[2]-bbox[0],bbox[3]-bbox[1]
x,y = sw/2-w/2,sh/2-h/2
root.geometry('%dx%d+%d+%d' % (w,h,x,y))
bg.configure(width=w,height=h)
root = Tk()
sw = root.winfo_screenwidth()
sh = root.winfo_screenheight()
root.overrideredirect(1)
root.attributes("-alpha",0.75)
root.attributes('-transparentcolor',bg='white',highlightthickness=0)
root.config(bg='white')
setClickthrough(bg.winfo_id())
frame = ImageTk.PhotoImage(file="example.png")
img_id = bg.create_image(0,image=frame,anchor='nw')
bg.pack()
size_position_for_picture()
setClickthrough(bg.winfo_id())
root.mainloop()
,
我也有一个函数可以为我的应用程序执行此操作,代码看起来与您的非常相似,但有一些细微的调整。你可以试试:
def set_clickthrough(hwnd,root):
# Get window style and perform a 'bitwise or' operation to make the style layered and transparent,achieving
# the clickthrough property
l_ex_style = win32gui.GetWindowLong(hwnd,win32con.GWL_EXSTYLE)
l_ex_style |= win32con.WS_EX_TRANSPARENT | win32con.WS_EX_LAYERED
win32gui.SetWindowLong(hwnd,l_ex_style)
# Set the window to be transparent and appear always on top
win32gui.SetLayeredWindowAttributes(hwnd,win32api.RGB(0,0),190,win32con.LWA_ALPHA) # transparent
win32gui.SetWindowPos(hwnd,win32con.HWND_TOPMOST,root.winfo_x(),root.winfo_y(),0)
此外,以下功能可以再次禁用点击
def disable_clickthrough(hwnd,root):
# Calling the function again sets the extended style of the window to zero,reverting to a standard window
win32api.SetWindowLong(hwnd,0)
# Remove the always on top property again,in case always on top was set to false in options
win32gui.SetWindowPos(hwnd,win32con.HWND_NOTOPMOST,0)
您可以通过调用 hwnd
来获取窗口句柄 (win32gui.FindWindow(None,root.title())
)。