win32api | python | How to create an application window, where to get wndProc?

Question

css

In all documentation:

#get instance handle
    hInstance = win32api.GetModuleHandle()
 
    # the class name
    className = 'SimpleWin32'
 
 
    # create and initialize window class
    wndClass                = win32gui.WNDCLASS()
    wndClass.style          = win32con.CS_HREDRAW | win32con.CS_VREDRAW
    wndClass.lpfnWndProc    = wndProc # А вот тут показывает что неизвестный объект
    wndClass.hInstance      = hInstance
    wndClass.hIcon          = win32gui.LoadIcon(0, win32con.IDI_APPLICATION)
    wndClass.hCursor        = win32gui.LoadCursor(0, win32con.IDC_ARROW)
    wndClass.hbrBackground  = win32gui.GetStockObject(win32con.WHITE_BRUSH)
    wndClass.lpszClassName  = className

Where can I get wndProc?

Answer 1

Such a table is made without using the TABLE, TBODY, TR, TD tags.
In your example, it is better to make the lines through DIV, then all the questions "border-radius for tr" will disappear.
And already inside the line you can apply TABLE (if it's easier for you) with a fixed column width.
Although the columns can also be done through divs using the style: display: table-cell;

Answer 2

and there exactly tr? did you look at the code?

Answer 3

For point 2.
You can use htmlbook.ru/css/border-spacing or insert an empty tr between the products with the required height.
For point 1:
https://jsfiddle.net/2e7aLdag/

Answer 4

It seems to me that the border-radius is set on the span element, e.g.
In general, in tr, td, table, a rather meager set for styling.

Answer 5

You're in luck, I did this recently.
You can’t just take and pass a Python function to WinAPI, since they have completely different call methods. You first need to describe the data type - a pointer to a function. More or less like this.

import ctypes
import ctypes.wintypes as w
LRESULT = w.LPARAM
WNDPROC = ctypes.WINFUNCTYPE(LRESULT, w.HWND, w.UINT, w.WPARAM, w.LPARAM)

After that, you can provide your window function like

def wnd_proc(hwnd: w.HWND, message: w.UINT, wParam: w.WPARAM, lParam: w.LPARAM) -> LRESULT:

And then you specify it in the window class:
wndСlass.lpfnWndProc = WNDPROC(wnd_proc)
But there is one more catch - there are a lot of window messages, and their set is different for different versions of Windows. There is a basic, more or less static set, but a lot of things can come in addition to them.
This is where DefWindowProc() comes to the rescue.

def wnd_proc(hwnd, message, wParam, lParam):
    if message == SOME_MESSAGE_YOU_WANT:  # отлавливаешь интересующие тебя сообщения
        DoStuff()  # и обрабатываешь их
        return 0  # не забудь вернуть 0 как признак успеха!
    # а все остальное отдаёшь в DefWindowProc()
    return user32.DefWindowProcW(hwnd, message, wParam, lParam)

Note that, like many WinAPI functions, DefWindowProc() comes in two forms - with the A suffix (one-byte ANSI encoding) and the W suffix (wide char, double-byte variant of Unicode). I do not recommend mixing, choose one suffix and stick to it throughout the program.
And another catch that almost drove me crazy - a variable with a window class MUST exist as long as the window exists. In other words, it should not be made local in the method - otherwise the python garbage collector will collect it later, which will be an unpleasant surprise for WinAPI. Catch an application crash.