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C++ 如何防止编辑控件在被另一个控件覆盖时显示?_C++_Winapi_Native - Fatal编程技术网

C++ 如何防止编辑控件在被另一个控件覆盖时显示?

C++ 如何防止编辑控件在被另一个控件覆盖时显示?,c++,winapi,native,C++,Winapi,Native,我已经创建了一个编辑框和一个列表框。当它们重叠时,当列表框位于顶部时,当鼠标光标位于列表框覆盖编辑框部分的部分上时,鼠标光标将变为工字梁,并显示编辑框的轮廓: 鼠标悬停前: 鼠标悬停后: 用于创建控件的代码: HWND hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, WC_EDIT, "xxx", WS_CHILD | WS_VISIBLE| ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,

我已经创建了一个编辑框和一个列表框。当它们重叠时,当列表框位于顶部时,当鼠标光标位于列表框覆盖编辑框部分的部分上时,鼠标光标将变为工字梁,并显示编辑框的轮廓:

鼠标悬停前:

鼠标悬停后:

用于创建控件的代码:

    HWND hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, WC_EDIT, "xxx", WS_CHILD | WS_VISIBLE| ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
        50, 100, 200, 100, hWnd, (HMENU)IDC_MAIN_EDIT, GetModuleHandle(NULL), NULL);

    HWND hList = CreateWindowEx(WS_EX_CLIENTEDGE, WC_LISTVIEW, _T(""), WS_VISIBLE | WS_CHILD | LVS_REPORT | LVS_EDITLABELS,
        70, 150, 200, 100, hWnd, (HMENU)ID_LIST_VIEW, GetModuleHandle(NULL), NULL);
我尝试过使用SetWindowPos来摆弄x-order,但它并没有改变行为。在任何情况下,我认为控件顺序的创建应该将列表框放在编辑控件的上方

它为什么这样做,更重要的是,我如何修复它,使编辑保持覆盖

要复制,请在VS2015中创建win32项目。将以上两行添加到WM_CREATE中,以及相应的includes defines等。基本上就是这样。下面的代码没有添加到
列表视图中的任何项目

更新:根据大众需求,以下是完整的代码:

#include "stdafx.h"
#include "Win32Project3.h"
#include <commctrl.h>

#define MAX_LOADSTRING 100
#define IDC_MAIN_EDIT   140
#define ID_LIST_VIEW 143

#pragma comment( lib, "comctl32.lib")
#pragma comment(linker, "\"/manifestdependency:type='Win32' name='Microsoft.Windows.Common-Controls' version='6.0.0.0' processorArchitecture='*' publicKeyToken='6595b64144ccf1df' language='*'\"")

#define MAX_LOADSTRING 100

// Global Variables:
HINSTANCE hInst;                                // current instance
WCHAR szTitle[MAX_LOADSTRING];                  // The title bar text
WCHAR szWindowClass[MAX_LOADSTRING];            // the main window class name

// Forward declarations of functions included in this code module:
ATOM                MyRegisterClass(HINSTANCE hInstance);
BOOL                InitInstance(HINSTANCE, int);
LRESULT CALLBACK    WndProc(HWND, UINT, WPARAM, LPARAM);

int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
                 _In_opt_ HINSTANCE hPrevInstance,
                 _In_ LPWSTR    lpCmdLine,
                 _In_ int       nCmdShow)
{
    UNREFERENCED_PARAMETER(hPrevInstance);
    UNREFERENCED_PARAMETER(lpCmdLine);

    // Initialize global strings
    LoadStringW(hInstance, IDS_APP_TITLE, szTitle, MAX_LOADSTRING);
    LoadStringW(hInstance, IDC_WIN32PROJECT3, szWindowClass, MAX_LOADSTRING);
    MyRegisterClass(hInstance);

    // Perform application initialization:
    if (!InitInstance (hInstance, nCmdShow))
    {
        return FALSE;
    }

    HACCEL hAccelTable = LoadAccelerators(hInstance,MAKEINTRESOURCE(IDC_WIN32PROJECT3));

    MSG msg;

    // Main message loop:
    while (GetMessage(&msg, nullptr, 0, 0))
    {
        if (!TranslateAccelerator(msg.hwnd, hAccelTable, &msg))
        {
            TranslateMessage(&msg);
            DispatchMessage(&msg);
        }
    }
    return (int) msg.wParam;
}

ATOM MyRegisterClass(HINSTANCE hInstance)
{
    WNDCLASSEXW wcex;
    wcex.cbSize = sizeof(WNDCLASSEX);
    wcex.style          = CS_HREDRAW | CS_VREDRAW;
    wcex.lpfnWndProc    = WndProc;
    wcex.cbClsExtra     = 0;
    wcex.cbWndExtra     = 0;
    wcex.hInstance      = hInstance;
    wcex.hIcon          = LoadIcon(hInstance, MAKEINTRESOURCE(IDI_WIN32PROJECT3));
    wcex.hCursor        = LoadCursor(nullptr, IDC_ARROW);
    wcex.hbrBackground  = (HBRUSH)(COLOR_WINDOW+1);
    wcex.lpszMenuName   = MAKEINTRESOURCEW(IDC_WIN32PROJECT3);
    wcex.lpszClassName  = szWindowClass;
    wcex.hIconSm        = LoadIcon(wcex.hInstance, MAKEINTRESOURCE(IDI_SMALL));

    return RegisterClassExW(&wcex);
}

BOOL InitInstance(HINSTANCE hInstance, int nCmdShow)
{
   hInst = hInstance; // Store instance handle in our global variable
   HWND hWnd = CreateWindowW(szWindowClass, szTitle, WS_OVERLAPPEDWINDOW,
  CW_USEDEFAULT, 0, CW_USEDEFAULT, 0, nullptr, nullptr, hInstance, nullptr);

   if (!hWnd)
   {
      return FALSE;
   }

   ShowWindow(hWnd, nCmdShow);
   UpdateWindow(hWnd);

   return TRUE;
}

LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
    switch (message)
    {
    case WM_CREATE:
    {
        HWND hList = CreateWindowEx(WS_EX_CLIENTEDGE, WC_LISTBOX, _T(""), WS_VISIBLE | WS_CHILD | LVS_REPORT | LVS_EDITLABELS,
        70, 150, 200, 100, hWnd, (HMENU)ID_LIST_VIEW, GetModuleHandle(NULL),NULL);

        HWND hEdit = CreateWindowEx(WS_EX_CLIENTEDGE, WC_EDIT, _T("xxx"), WS_VISIBLE | WS_CHILD | ES_MULTILINE | ES_AUTOVSCROLL | ES_AUTOHSCROLL,
        50, 100, 200, 160, hWnd, (HMENU)IDC_MAIN_EDIT, GetModuleHandle(NULL), NULL);
    }
    case WM_COMMAND:
        {
            int wmId = LOWORD(wParam);
            // Parse the menu selections:
            switch (wmId)
            {
            case IDM_ABOUT:
                DialogBox(hInst, MAKEINTRESOURCE(IDD_ABOUTBOX), hWnd, About);
                break;
            case IDM_EXIT:
                DestroyWindow(hWnd);
                break;
            default:
                return DefWindowProc(hWnd, message, wParam, lParam);
            }
        }
        break;
    case WM_PAINT:
        {
            PAINTSTRUCT ps;
            HDC hdc = BeginPaint(hWnd, &ps);
            EndPaint(hWnd, &ps);
        }
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    default:
        return DefWindowProc(hWnd, message, wParam, lParam);
    }
    return 0;
}
#包括“stdafx.h”
#包括“Win32Project3.h”
#包括
#定义最大加载字符串100
#定义IDC_MAIN_EDIT 140
#定义标识列表视图143
#pragma注释(lib,“comctl32.lib”)
#pragma注释(链接器“\”/manifestdependency:type='Win32'name='Microsoft.Windows.Common Controls'version='6.0.0.0'processorArchitecture='*'publicKeyToken='6595b64144ccf1df'language='*'\“”)
#定义最大加载字符串100
//全局变量:
HINSTANCE hInst;//当前实例
WCHAR szTitle[MAX_LOADSTRING];//标题栏文本
WCHAR szWindowClass[最大加载字符串];//主窗口类名称
//转发此代码模块中包含的函数声明:
ATOM MyRegisterClass(HINSTANCE HINSTANCE);
BOOL InitInstance(HINSTANCE,int);
LRESULT回调WndProc(HWND、UINT、WPARAM、LPARAM);
国际货币基金组织,
_在当前情况下,
_在LPWSTR lpCmdLine中,
_In_uuint(nCmdShow)
{
未引用的_参数(HPPreInstance);
未引用的_参数(lpCmdLine);
//初始化全局字符串
LoadStringW(hInstance、IDS\U APP\U TITLE、szTitle、MAX\U LOADSTRING);
LoadStringW(hInstance、IDC_WIN32PROJECT3、szWindowClass、MAX_LOADSTRING);
MyRegisterClass(hInstance);
//执行应用程序初始化:
如果(!InitInstance(hInstance,nCmdShow))
{
返回FALSE;
}
HACCEL hAccelTable=加载加速器(hInstance、MAKEINTRESOURCE(IDC_WIN32PROJECT3));
味精;
//主消息循环:
while(GetMessage(&msg,nullptr,0,0))
{
if(!TranslateAccelerator(msg.hwnd、hAccelTable和msg))
{
翻译信息(&msg);
发送消息(&msg);
}
}
返回(int)msg.wParam;
}
ATOM MyRegisterClass(HINSTANCE HINSTANCE)
{
WNDCLASSEXW wcex;
wcex.cbSize=sizeof(WNDCLASSEX);
wcex.style=CS_HREDRAW | CS_VREDRAW;
wcex.lpfnWndProc=WndProc;
wcex.cbClsExtra=0;
wcex.cbWndExtra=0;
wcex.hInstance=hInstance;
wcex.hIcon=LoadIcon(hInstance,MAKEINTRESOURCE(IDI_WIN32PROJECT3));
wcex.hCursor=LoadCursor(nullptr,IDC_箭头);
wcex.hbrBackground=(HBRUSH)(彩色窗口+1);
wcex.lpszMenuName=MAKEINTRESOURCEW(IDC_WIN32PROJECT3);
wcex.lpszClassName=szWindowClass;
wcex.hIconSm=LoadIcon(wcex.hInstance,MAKEINTRESOURCE(IDI_SMALL));
返回寄存器CLASSEXW(&wcex);
}
BOOL InitInstance(HINSTANCE HINSTANCE,int nCmdShow)
{
hInst=hInstance;//将实例句柄存储在全局变量中
HWND HWND=CreateWindowW(szWindowClass,szTitle,WS_OVERLAPPEDWINDOW,
CW_usefault,0,CW_usefault,0,nullptr,nullptr,hInstance,nullptr);
如果(!hWnd)
{
返回FALSE;
}
显示窗口(hWnd、nCmdShow);
更新窗口(hWnd);
返回TRUE;
}
LRESULT回调WndProc(HWND HWND,UINT消息,WPARAM WPARAM,LPARAM LPARAM)
{
开关(信息)
{
案例WM_创建:
{
HWND hList=CreateWindowEx(WS_EX_客户端、WC_列表框、T(“”)、WS_可见、WS_子级、LVS_报告、LVS_编辑标签、,
70、150、200、100、hWnd,(HMENU)ID_列表_视图,GetModuleHandle(NULL),NULL);
HWND hEdit=CreateWindowEx(WS_EX_CLIENTEDGE,WC_EDIT,_T(“xxx”),WS_VISIBLE | WS_CHILD | ES|u MULTILINE | ES|u AUTOVSCROLL | ES|u AUTOHSCROLL,
50、100、200、160、hWnd,(HMENU)IDC\u主编辑,GetModuleHandle(空),空);
}
case WM_命令:
{
int wmId=低ORD(wParam);
//解析菜单选项:
交换机(wmId)
{
案例IDM_关于:
对话框(hInst、MAKEINTRESOURCE(IDD_ABOUTBOX)、hWnd、About);
打破
案例IDM_退出:
窗口(hWnd);
打破
违约:
返回DefWindowProc(hWnd、message、wParam、lParam);
}
}
打破
案例WM_油漆:
{
PAINTSTRUCT-ps;
HDC HDC=开始喷漆(hWnd和ps);
端漆(hWnd和ps);
}
打破
案例WM_销毁:
PostQuitMessage(0);
打破
违约:
返回DefWindowProc(hWnd、message、wParam、lParam);
}
返回0;
}

该效果是由一个控件在处理
WM_PAINT
消息时呈现到另一个控件的客户端区域引起的

为了防止这种情况发生,需要剪裁渲染,以便排除被其他控件占用的区域。在控件上设置
WS_CLIPSIBLINGS
,指示系统应用适当的剪裁区域:

相对于彼此剪裁子窗口;也就是说,当一个特定的子窗口接收到消息时,WS\u CLIPSIBLINGS样式将所有其他重叠的子窗口从re中剪辑出来