First things first

哔哩哔哩倍速，懂得都懂。

document.querySelector("video").playbackRate = 3;

首先让我们来看一看一个完整的Windows窗口程序是如何构成的。

第一部分：Windows 基础
第二部分：MDI、多线程、数据库
第三部分：图片等

官方文档：https://docs.microsoft.com

First program¶

#include<stdio.h>
int main() {
    printf("Hello, world");
}

firstwindow¶

#include<windows.h>

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) {
    MessageBox(NULL, TEXT("Text"), TEXT("HI"), MB_OK);
    return 0;
}

unicode

{loading=lazy}

L"String", LCHAR wchar_t

TCHAR

{loading=lazy}

#include<windows.h>

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam);

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR szCmdLine, int iCmdShow) {
    static TCHAR szAppName[] = TEXT("MyWindow");
    HWND hwnd;
    MSG msg;
    WNDCLASS wndclass;

    wndclass.style = CS_HREDRAW | CS_VREDRAW;
    wndclass.lpfnWndProc = WndProc;
    wndclass.cbClsExtra = 0;
    wndclass.cbWndExtra = 0;
    wndclass.hInstance = hInstance;
    wndclass.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wndclass.hCursor = LoadCursor(NULL, IDC_ARROW);
    wndclass.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
    wndclass.lpszMenuName = NULL;
    wndclass.lpszClassName = szAppName;

    // Register the class
    if (!RegisterClass(&wndclass)) {
        MessageBox(NULL, TEXT("This should be run on Windows NT"), TEXT("CAP"), 0);
        return -1;
    }

    hwnd = CreateWindow(szAppName,// 创建类名称（基于哪个类）
        TEXT("dandelight"),//标题
        WS_OVERLAPPEDWINDOW,//风格
        CW_USEDEFAULT,//x, y, wid, hei
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        CW_USEDEFAULT,
        NULL,
        NULL,
        hInstance,
        NULL);

    ShowWindow(hwnd, iCmdShow);
    UpdateWindow(hwnd);

    // Windows核心--消息循环
    while (GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}

LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
    HDC hdc; // device context
    PAINTSTRUCT ps;
    RECT rect;

    switch (message) {
    case WM_PAINT:
        hdc = BeginPaint(hwnd, &ps);
        GetClientRect(hwnd, &rect);
        DrawText(hdc, TEXT("HEllo, world"), -1, &rect,
            DT_SINGLELINE | DT_CENTER | DT_VCENTER);
        EndPaint(hwnd, &ps);
        return 0;
    case WM_DESTROY:
        PostQuitMessage(0);
        return 0;
    }

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

Windows

windows 到处都是窗口编程

{loading=lazy}

Windows 是一个事件驱动、基于消息的操作系统

{loading=lazy}

方法 1 适用于 MS_PAINT，方法 2 适用于任何时候

{loading=lazy}