C++ | main函数下创建窗口

其实按照创建窗口的方法就可以了。
过后包装一下子。

#include <cstdio>
#include <Windows.h>

WNDCLASSA wc = { };
HINSTANCE hInst;
HWND hWnd;
MSG msg = { };

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam);

int main(int count, char** strings) {
    hInst = GetModuleHandleA(NULL);

    wc.hInstance = hInst;
    wc.lpfnWndProc = WindowProc;
    wc.lpszClassName = "TEST";

    RegisterClassA(&wc);

    hWnd = CreateWindowExA(
        0, "TEST",
        (LPCSTR)L"TEST", // 我不知道这里到底发生了什么，字符串乱码
        WS_OVERLAPPEDWINDOW,

        CW_USEDEFAULT, CW_USEDEFAULT,
        CW_USEDEFAULT, CW_USEDEFAULT,

        NULL, NULL,
        hInst,
        NULL
    );

    if (hWnd == NULL)return -1;

    ShowWindow(hWnd, SW_SHOW);
    UpdateWindow(hWnd);

    while (GetMessage(&msg, NULL, 0, 0) > 0)
    {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }

    return 0;
}

LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;

    case WM_PAINT:
    {
        PAINTSTRUCT ps;
        HDC hdc = BeginPaint(hwnd, &ps);

		// TODO

        FillRect(hdc, &ps.rcPaint, (HBRUSH)(COLOR_WINDOW + 1));

        EndPaint(hwnd, &ps);
    }
    return 0;

    }
    return DefWindowProc(hwnd, uMsg, wParam, lParam);
}

效果: