GetGUIThreadInfo()与pywin32
我正试图跟踪这个答案，我已经到了一个应该调用
GetGUIThreadInfo()但我在使用的pywin32吞吐中找不到这一点。
到目前为止我所做的是
import win32api
import win32gui
import win32process
test1 = win32gui.FindWindowEx(0, 0, 0, "notepad")
(test1tid, test1pid) = win32process.GetWindowThreadProcessId(test1)
test1hwndFocus = win32process.GetGUIThreadInfo(test1tid)但是最后一行是完整的，因为我找不到正确的方法来调用函数。
Update1：
我认为我取得了一些进展，但现在我的结构只返回0，当我期望一些.所以，也许我的结构不是写的，我认为这可能是因为我的结构中的类型，但是我如何找到正确的类型呢？
import win32api
import win32gui
import win32process
import ctypes
class RECT(ctypes.Structure):
_fields_ = [
("left", ctypes.c_ulong),
("top", ctypes.c_ulong),
("right", ctypes.c_ulong),
("bottom", ctypes.c_ulong)
]
class GUITHREADINFO(ctypes.Structure):
_fields_ = [
("cbSize", ctypes.c_ulong),
("flags", ctypes.c_ulong),
("hwndActive", ctypes.c_ulong),
("hwndFocus", ctypes.c_ulong),
("hwndCapture", ctypes.c_ulong),
("hwndMenuOwner", ctypes.c_ulong),
("hwndMoveSize", ctypes.c_ulong),
("hwndCaret", ctypes.c_ulong),
("rcCaret", RECT)
]
guiThreadInfoStruct = GUITHREADINFO()
ctypes.sizeof(gtitest)
test1 = win32gui.FindWindowEx(0, 0, 0, "notepad")
(test1tid, test1pid) = win32process.GetWindowThreadProcessId(test1)
ctypes.windll.user32.GetGUIThreadInfo(test1tid, guiThreadInfoStruct)
print (guiThreadInfoStruct.hwndFocus)Update2：
我找到了这里类型
update3：
如果有人想看看我用这个做什么去看看这里
回答 1
Stack Overflow用户
发布于 2020-01-24 15:41:42
显然，[MS.Docs]：GetGUIThreadInfo函数不是由PyWin32包装的，所以必须使用其他方法。其中之一是通过[Python3.Docs]：ctypes Python的外部函数库调用它(涉及编写大量额外代码)。
code00.py
#!/usr/bin/env python
import sys
import win32gui as wgui
import win32process as wproc
import win32con as wcon
import ctypes as ct
from ctypes import wintypes as wt
class GUITHREADINFO(ct.Structure):
_fields_ = [
("cbSize", wt.DWORD),
("flags", wt.DWORD),
("hwndActive", wt.HWND),
("hwndFocus", wt.HWND),
("hwndCapture", wt.HWND),
("hwndMenuOwner", wt.HWND),
("hwndMoveSize", wt.HWND),
("hwndCaret", wt.HWND),
("rcCaret", wt.RECT),
]
def __str__(self):
ret = "\n" + self.__repr__()
start_format = "\n {0:s}: "
for field_name, _ in self. _fields_[:-1]:
field_value = getattr(self, field_name)
field_format = start_format + ("0x{1:016X}" if field_value else "{1:}")
ret += field_format.format(field_name, field_value)
rc_caret = getattr(self, self. _fields_[-1][0])
ret += (start_format + "({1:d}, {2:d}, {3:d}, {4:d})").format(self. _fields_[-1][0], rc_caret.top, rc_caret.left, rc_caret.right, rc_caret.bottom)
return ret
def main(*argv):
window_name = "Untitled - Notepad"
hwnd = wgui.FindWindowEx(wcon.NULL, 0, wcon.NULL, window_name)
print("'{0:s}' window handle: 0x{1:016X}".format(window_name, hwnd))
tid, pid = wproc.GetWindowThreadProcessId(hwnd)
print("PId: {0:d}, TId: {1:d}".format(pid, tid))
user32_dll = ct.WinDLL("user32.dll")
GetGUIThreadInfo = getattr(user32_dll, "GetGUIThreadInfo")
GetGUIThreadInfo.argtypes = [wt.DWORD, ct.POINTER(GUITHREADINFO)]
GetGUIThreadInfo.restype = wt.BOOL
gti = GUITHREADINFO()
gti.cbSize = ct.sizeof(GUITHREADINFO)
res = GetGUIThreadInfo(tid, ct.byref(gti))
print("{0:s} returned: {1:d}".format(GetGUIThreadInfo.__name__, res))
if res:
print(gti)
if __name__ == "__main__":
print("Python {0:s} {1:d}bit on {2:s}\n".format(" ".join(item.strip() for item in sys.version.split("\n")), 64 if sys.maxsize > 0x100000000 else 32, sys.platform))
main(*sys.argv[1:])
print("\nDone.")输出
Python3.7.6( e:\Work\Dev\StackOverflow\q059884688>"e:\Work\Dev\VEnvs\py_pc064_03.07.06_test0\Scripts\python.exe“/v3.7.6:43364a7ae0,2019年12月19日，00:42:30) MSC v.1916 64位(AMD64) 64位( win32 'Untitled Notepad‘窗口句柄:0x000000000000042B20D8 PId: 37192，TId: 53072 GetGUIThreadInfo返回:1 <__main__.GUITHREADINFO对象在0x0000022649436648> cbSize: 0x00000000000048标志:0 hwndActive: None hwndFocus: None hwndCapture: None hwndMenuOwner: None hwndMoveSize: None hwndCaret: None rcCaret：(0，0，0，0)已完成。
Notes
- 打印您正在使用的数据，因为它可能与您预期的不同。例如，记事本窗口标题不是代码所期望的“记事本”，在这种情况下，win32gui.FindWindowEx将返回NULL (0)。
- 我也使用[ActiveState.Docs]：PyWin32文档 (它是旧的和过时的，但在大多数情况下它非常有用)
https://stackoverflow.com/questions/59884688
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