windows编程自己常用的代码记录

首先新建makefile

ALL:main

files += -mwindows -lcomctl32 -ldwmapi

main:$(cpp)
	g++ $(cpp) $(files) -o $(exe) -static -Wall -std=c++11 $(INCLUDE) $(LIB)

.PHONY: clean all
clean:
	del *.exe -rf

形成的编译命令是：g++ demo.cpp -mwindows -lcomctl32 -ldwmapi -o demo -static -Wall -std=c++11

异形窗口

#include <windows.h>

LRESULT CALLBACK WinProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    static HDC hDC = GetWindowDC(hWnd);
    static HRGN hRgn = CreateRectRgn(120, 70, 280, 230);

    switch (uMsg)
    {
    case WM_ERASEBKGND:
    {
        DefWindowProc(hWnd, uMsg, wParam, lParam);
        FillRgn(hDC, hRgn, CreateSolidBrush(RGB(255, 165, 0))); // Orange
        SelectObject(hDC, hRgn);
        return 0;
    }

    case WM_CREATE:
    {
        HRGN hRgn1 = CreateEllipticRgn(0, 0, 400, 300);
        HRGN hRgn2 = CreateEllipticRgn(150, 100, 250, 200);
        CombineRgn(hRgn1, hRgn1, hRgn2, RGN_XOR);
        SetWindowRgn(hWnd, hRgn1, TRUE);
        DeleteObject(hRgn1);
        DeleteObject(hRgn2);
        break;
    }

    case WM_LBUTTONDOWN:
    {
        SendMessage(hWnd, WM_NCLBUTTONDOWN, HTCAPTION, 0);
        break;
    }

    case WM_DESTROY:
    {
        DeleteObject(hRgn);
        ReleaseDC(hWnd, hDC);
        PostQuitMessage(0);
        break;
    }
    }
    return DefWindowProc(hWnd, uMsg, wParam, lParam);
    ;
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE, LPSTR, BOOL)
{
    WNDCLASS wc = {0};
    wc.lpszClassName = TEXT("wndclass");
    wc.hbrBackground = CreateSolidBrush(RGB(255, 99, 71));
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);
    wc.lpfnWndProc = WinProc;
    RegisterClass(&wc);

    HWND hWnd = CreateWindowEx(WS_EX_LAYERED | WS_EX_TOPMOST, wc.lpszClassName, TEXT("Window"), WS_POPUP | WS_VISIBLE, CW_USEDEFAULT, CW_USEDEFAULT, 400, 300, 0, 0, hInstance, 0);
    if (hWnd == NULL)
        return 1;

    SetLayeredWindowAttributes(hWnd, NULL, 178, LWA_ALPHA); // Tomato

    MSG msg = {0};
    while (GetMessage(&msg, 0, 0, 0))
    {
        DispatchMessage(&msg);
    }

    return 0;
}

单击更改分辨率

#include <Windows.h>
#include <strsafe.h>

/*****
 * CALLBACK代表__stdcall 参数的传递顺序 从右到左 依次入栈 并且在函数返回前 依次出栈
 * HWND UINT WPARAM LPARAM
 * 消息所属的窗口句柄
 * 消息名称 WM_XXX消息名
 * 键盘附加消息
 * 鼠标附加消息
 */

LRESULT CALLBACK WindowProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    switch (uMsg)
    {
    case WM_CREATE:
    {
    }
    break;
    case WM_PAINT:
    {
    }
    break;
    case WM_SIZE:
    {
    }
    break;
    case WM_COMMAND:
    {
    }
    break;
    case WM_LBUTTONDOWN:
    {
        DISPLAY_DEVICE m_Device;
        DEVMODE m_DeviceMode;
        m_Device.cb = sizeof(DISPLAY_DEVICE);
        m_DeviceMode.dmSize = sizeof(DEVMODE);
        m_DeviceMode.dmDriverExtra = 0;
        EnumDisplayDevices(NULL, 0, &m_Device, 0);

        if (EnumDisplaySettingsEx(m_Device.DeviceName, ENUM_CURRENT_SETTINGS, &m_DeviceMode, 0))
        {
            m_DeviceMode.dmPelsWidth = 1024;
            m_DeviceMode.dmPelsHeight = 768;
            if (ChangeDisplaySettingsEx(m_Device.DeviceName, &m_DeviceMode, NULL, 0, NULL) == DISP_CHANGE_SUCCESSFUL)
            {
            }
        }
    }
    break;
    case WM_KEYDOWN:
    {
    }
    break;
    case WM_CLOSE:
    {
        DestroyWindow(hWnd);
    }
    break;
    case WM_DESTROY:
    {
        PostQuitMessage(0);
    }
    break;
    default:
    {
    }
    }
    return DefWindowProc(hWnd, uMsg, wParam, lParam);
}

// WINAPI代表__stdcall 参数的传递顺序 从右到左 依次入栈 并且在函数返回前 依次出栈
int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
{
    WNDCLASS wc;
    wc.cbClsExtra = 0;                                      // 类的额外内存
    wc.cbWndExtra = 0;                                      // 窗口额外内存
    wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); // 背景
    wc.hCursor = LoadCursor(NULL, IDC_ARROW);               // 光标 第一个为NULL代表使用系统提供的光标
    wc.hIcon = LoadIcon(NULL, IDI_APPLICATION);             // 图标 第一个为NULL代表使用系统提供的图标
    wc.hInstance = hInstance;                               // 应用程序实例句柄
    wc.lpfnWndProc = WindowProc;                            // 回调函数
    wc.lpszClassName = TEXT("main");                        // 窗口类名称
    wc.lpszMenuName = NULL;                                 // 菜单名称
    wc.style = CS_HREDRAW | CS_VREDRAW;                     // 显示风格

    RegisterClass(&wc);

    /*****
     * CreateWindow()
     * lpClassName,lpWindowName,dwStyle,x,y,nWidth,nHeight,hWndParent,hMenu,hInstance,lpParam
     * 类名
     * 标题名
     * WS_OVERLAPPEDWINDOW 混合风格
     * x坐标 CW_USEDEFAULT
     * y坐标
     * 宽
     * 高
     * 父窗口 NULL
     * 菜单 NULL
     * 实例句柄 hInstance
     * 附加值
     */
    HWND hWnd = CreateWindow(wc.lpszClassName, TEXT("Windows"), WS_OVERLAPPEDWINDOW,
                             CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             CW_USEDEFAULT,
                             NULL, NULL, hInstance, NULL);
    if (hWnd == NULL)
    {
        return 0;
    }
    ShowWindow(hWnd, SW_SHOWNORMAL);
    UpdateWindow(hWnd);

    /*****
     * HWND hwnd; 主窗口句柄
     * UINT message; 具体消息名称
     * WPARAM wParam; 附加消息 键盘消息
     * LPARAM lParam; 附加消息 鼠标消息
     * DWORD time; 消息产生时间
     * POINT pt; 附加消息 鼠标消息 x y
     */
    MSG msg;

    /*****
     * LPMSG lpMsg,HWND hWnd,UINT wMsgFilterMin,UINT wMsgFilterMax
     * 消息
     * 捕获窗口 NULL代表捕获所有窗口
     * 最小的过滤消息 0代表捕获所有消息
     * 最大的过滤消息 0代表捕获所有消息
     */
    while (GetMessage(&msg, NULL, 0, 0))
    {
        // 如果按的是组合键 需要翻译
        TranslateMessage(&msg);
        // 单按一个键盘就直接分发消息
        DispatchMessage(&msg);
    }
    return 0;
}