import win32con
import sys
from ctypes import *
WNDPROC = WINFUNCTYPE(c_long, c_int, c_uint, c_int, c_int)
class WNDCLASS(Structure):
_fields_ = [('style', c_uint),
('lpfnWndProc', WNDPROC),
('cbClsExtra', c_int),
('cbWndExtra', c_int),
('hInstance', c_int),
('hIcon', c_int),
('hCursor', c_int),
('hbrBackground', c_int),
('lpszMenuName', c_char_p),
('lpszClassName', c_char_p)]
class RECT(Structure):
_fields_ = [('left', c_long),
('top', c_long),
('right', c_long),
('bottom', c_long)]
class PAINTSTRUCT(Structure):
_fields_ = [('hdc', c_int),
('fErase', c_int),
('rcPaint', RECT),
('fRestore', c_int),
('fIncUpdate', c_int),
('rgbReserved', c_char * 32)]
class POINT(Structure):
_fields_ = [('x', c_long),
('y', c_long)]
class MSG(Structure):
_fields_ = [('hwnd', c_int),
('message', c_uint),
('wParam', c_int),
('lParam', c_int),
('time', c_int),
('pt', POINT)]
def ErrorIfZero(handle):
if handle == 0:
raise WinError
else:
return handle
def MainWin():
CreateWindowEx = windll.user32.CreateWindowExA
CreateWindowEx.argtypes = [c_int, c_char_p, c_char_p, c_int, c_int, c_int, c_int, c_int, c_int, c_int, c_int, c_int]
CreateWindowEx.restype = ErrorIfZero
# Define Window Class
wndclass = WNDCLASS()
wndclass.style = win32con.CS_HREDRAW | win32con.CS_VREDRAW
wndclass.lpfnWndProc = WNDPROC(WndProc)
wndclass.cbClsExtra = wndclass.cbWndExtra = 0
wndclass.hInstance = windll.kernel32.GetModuleHandleA(c_int(win32con.NULL))
wndclass.hIcon = windll.user32.LoadIconA(c_int(win32con.NULL), c_int(win32con.IDI_APPLICATION))
wndclass.hCursor = windll.user32.LoadCursorA(c_int(win32con.NULL), c_int(win32con.IDC_ARROW))
wndclass.hbrBackground = windll.gdi32.GetStockObject(c_int(win32con.WHITE_BRUSH))
wndclass.lpszMenuName = None
wndclass.lpszClassName = "MainWin"
# Register Window Class
if not windll.user32.RegisterClassA(byref(wndclass)):
raise WinError()
# Create Window
hwnd = CreateWindowEx(0,
wndclass.lpszClassName,
"Python Window",
win32con.WS_OVERLAPPEDWINDOW,
win32con.CW_USEDEFAULT,
win32con.CW_USEDEFAULT,
win32con.CW_USEDEFAULT,
win32con.CW_USEDEFAULT,
win32con.NULL,
win32con.NULL,
wndclass.hInstance,
win32con.NULL)
# Show Window
windll.user32.ShowWindow(c_int(hwnd), c_int(win32con.SW_SHOWNORMAL))
windll.user32.UpdateWindow(c_int(hwnd))
# Pump Messages
msg = MSG()
pMsg = pointer(msg)
NULL = c_int(win32con.NULL)
while windll.user32.GetMessageA( pMsg, NULL, 0, 0) != 0:
windll.user32.TranslateMessage(pMsg)
windll.user32.DispatchMessageA(pMsg)
return msg.wParam
def WndProc(hwnd, message, wParam, lParam):
ps = PAINTSTRUCT()
rect = RECT()
if message == win32con.WM_PAINT:
hdc = windll.user32.BeginPaint(c_int(hwnd), byref(ps))
windll.user32.GetClientRect(c_int(hwnd), byref(rect))
windll.user32.DrawTextA(c_int(hdc),
"Python Powered Windows" ,
c_int(-1), byref(rect),
win32con.DT_SINGLELINE|win32con.DT_CENTER|win32con.DT_VCENTER)
windll.user32.EndPaint(c_int(hwnd), byref(ps))
return 0
elif message == win32con.WM_DESTROY:
windll.user32.PostQuitMessage(0)
return 0
return windll.user32.DefWindowProcA(c_int(hwnd), c_int(message), c_int(wParam), c_int(lParam))
if __name__=='__main__':
sys.exit(MainWin())
