每个窗口单独处理消息的例子源码

整个窗口使用消息类重新写的源码如下：

#windows应用程序
#使用类来描述
#开发人员：蔡军生（QQ：9073204） 深圳  2014-8-24

from ctypes import *
from ctypes.wintypes import *

WS_EX_APPWINDOW = 0x40000
WS_OVERLAPPEDWINDOW = 0xcf0000
WS_CAPTION = 0xc00000
SW_SHOWNORMAL = 1
SW_SHOW = 5
CS_HREDRAW = 2
CS_VREDRAW = 1
CW_USEDEFAULT = 0x80000000

WM_DESTROY = 2
WM_NCCREATE = 0x0081

WHITE_BRUSH = 0
GWL_USERDATA = -21

WNDPROCTYPE = WINFUNCTYPE(c_int, HWND, c_uint, WPARAM, LPARAM)
#定义窗口类结构
class WNDCLASSEX(Structure):
    _fields_ = [("cbSize", c_uint),
                ("style", c_uint),
                ("lpfnWndProc", WNDPROCTYPE),
                ("cbClsExtra", c_int),
                ("cbWndExtra", c_int),
                ("hInstance", HANDLE),
                ("hIcon", HANDLE),
                ("hCursor", HANDLE),
                ("hBrush", HANDLE),
                ("lpszMenuName", LPCWSTR),
                ("lpszClassName", LPCWSTR),
                ("hIconSm", HANDLE)]

#定义创建窗口的参数结构
class CREATESTRUCTW(Structure):
    _fields_ = [("lpCreateParams", LPVOID),
                ("hInstance", HANDLE),
                ("hMenu", HMENU),
                ("hwndParent", HWND),
                ("cy", c_int),
                ("cx", c_int),
                ("y", c_int),
                ("x", c_int),
                ("style", LONG),
                ("lpszName", LPCWSTR),
                ("lpszClass", LPCWSTR),
                ("dwExStyle", DWORD)]


#窗口类
class Window:
    def __init__(self, hWnd):
        self.hWnd = hWnd
    def Display(self, cmdShow):
        windll.user32.ShowWindow(self.hWnd, cmdShow)
        windll.user32.UpdateWindow(self.hWnd)
   
#窗口类型注册类
class WinClassMaker:
    def __init__(self, wndProc, className, hInst):
        self.wndClass = WNDCLASSEX()
        self.wndClass.cbSize = sizeof(WNDCLASSEX)
        self.wndClass.style = CS_HREDRAW | CS_VREDRAW
        self.wndClass.lpfnWndProc = wndProc
        self.wndClass.cbClsExtra = 0
        self.wndClass.cbWndExtra = 0
        self.wndClass.hInstance = hInst
        self.wndClass.hIcon = 0
        self.wndClass.hCursor = 0
        self.wndClass.hBrush = windll.gdi32.GetStockObject(WHITE_BRUSH)
        self.wndClass.lpszMenuName = 0
        self.wndClass.lpszClassName = className
        self.wndClass.hIconSm = 0
    def Register(self):
        return windll.user32.RegisterClassExW(byref(self.wndClass))

#创建窗口
class WinMaker:
    def __init__(self, className, hInst):
        self.className = className
        self.hInst = hInst
        self.style = WS_OVERLAPPEDWINDOW | WS_CAPTION
        self.exStyle = 0
        self.x = CW_USEDEFAULT
        self.y = 0
        self.width = CW_USEDEFAULT
        self.height = 0
        self.hWndParent = HWND(0)
        self.hMenu = HWND(0)
        self.wndCreatData = c_void_p(0)
    def Create(self, wndCreatData, title):
        self.hWnd = windll.user32.CreateWindowExW(
            self.exStyle, self.className, title,
            self.style,
            self.x, self.y,
            self.width, self.height,
            self.hWndParent,
            self.hMenu, 
            self.hInst, 
            py_object(wndCreatData))
    
        if not self.hWnd:
            print('Failed to create window')
            exit(0)
        return self.hWnd


class Controller:
    def __init__(self):
        self.hWnd = HWND()
    def SetWnd(self, hWnd):
        self.hWnd = hWnd
    def MyWndProc(self, hWnd, Msg, wParam, lParam):
        if Msg == WM_DESTROY:           
            windll.user32.PostQuitMessage(0)
            return 0
        else:
            return windll.user32.DefWindowProcW(hWnd, Msg, wParam, lParam)
            
#窗口消息处理回调函数
def PyWndProc(hWnd, Msg, wParam, lParam):
    pyCtrl = windll.user32.GetWindowLongW(hWnd, GWL_USERDATA)
    if Msg == WM_NCCREATE:
        creatstructw = cast(lParam, POINTER(CREATESTRUCTW)).contents
        pyCtrl = creatstructw.lpCreateParams                  
        windll.user32.SetWindowLongW(hWnd, GWL_USERDATA, pyCtrl)
        
        #获取控制类对象
        ctrl = cast(pyCtrl, py_object).value
        ctrl.SetWnd(hWnd)      
        
    if pyCtrl:   
        #获取控制类对象
        ctrl = cast(pyCtrl, py_object).value
        return ctrl.MyWndProc(hWnd, Msg, wParam, lParam)        
    else:
        return windll.user32.DefWindowProcW(hWnd, Msg, wParam, lParam)
    
#主函数入口    
def main():	
    hInst = windll.kernel32.GetModuleHandleW(None)
    WndProc = WNDPROCTYPE(PyWndProc) 
    
    className = u'ShenzhenCai'
    wname = u'MVC' 
    
    winClass = WinClassMaker(WndProc, className, hInst)
    winClass.Register()
    maker = WinMaker(className, hInst)
    
    ctrl = Controller()
    win = Window(maker.Create(ctrl, wname))
    win.Display(SW_SHOW)
    
    msg = MSG()
    lpmsg = pointer(msg)
    print('Entering message loop')
    while windll.user32.GetMessageW(lpmsg, 0, 0, 0) != 0:
        windll.user32.TranslateMessage(lpmsg)
        windll.user32.DispatchMessageW(lpmsg)

    print('done.')
    
    
if __name__ == "__main__":
    print( "Win32 Application in python" )
    main()