Windwos API, WC_LISTVIEW 插入元组成功却显示不了？

[neicole]

新建一个windows窗口，类型为WC_LISTVIEW，使用SendMessage插入元素，研究了半天，一直找不到插入元素失败的原因。SendMessage返回的结果是插入成功，不过却不能看见元组出现在列表中。

BOOL KScreenshotWindow::_CreateButtomListWindow()
{
    INITCOMMONCONTROLSEX iCex;

    // Ensure that the common control DLL is loaded. 

    iCex.dwSize = sizeof(INITCOMMONCONTROLSEX);
    iCex.dwICC  = ICC_LISTVIEW_CLASSES;
    InitCommonControlsEx(&iCex); 

    // Create the list-view window in report view with label 
    // editing enabled.

    m_hButtomListView = 
        ::CreateWindow (
                        WC_LISTVIEW, /// ListBox, 
                        L"MyListButtom", 
                        WS_CHILD|   ///WS_VISIBLE |
                        LVS_ALIGNLEFT | 
                        LVS_REPORT ///| LVS_ALIGNTOP | LVS_EDITLABELS | 
///                        LVS_ICON | 
 ///                       LVS_NOCOLUMNHEADER | LVS_NOSCROLL
                        ,
                        /// LVS_LIST | LVS_NOLABELWRAP 
                        0, 
                        0, 
                        1000,    /// button加起来的长度
                        100,     /// button的高度
                        m_hWindows, 
                        NULL,
                        m_hInst, 
                        NULL
                        ); 

    if (NULL == m_hButtomListView)
    {
        return FALSE; 
    }

    LV_COLUMN lvcColumn;
    lvcColumn.mask = LVCF_TEXT | LVCF_WIDTH;    /// LVCF_IMAGE
    lvcColumn.mask |= LVCF_FMT;
    lvcColumn.fmt = LVCFMT_LEFT;
    lvcColumn.cx = 50;                         /// 单个图标的像素
    lvcColumn.pszText = L"功能";
    SendMessage(m_hButtomListView, LVM_INSERTCOLUMN, nColumnFunId, (LPARAM)&lvcColumn);

    LVITEM lvcItem;
    lvcItem.mask = LVCF_TEXT;    /// LVCF_IMAGE
    lvcItem.iItem = 0;
    lvcItem.iSubItem = 0;
    lvcItem.lParam = nColumnFunId;

    LONG nRes = 110;
    lvcItem.pszText = L"square";
    nRes = SendMessage(m_hButtomListView, LVM_INSERTITEM, 0, (LPARAM)&lvcItem);
    
    /// 这里断点nRes返回的是0，插入成功，但是却不能显示

    lvcItem.pszText = L"circle";
    SendMessage(m_hButtomListView, LVM_INSERTITEM, 0, (LPARAM)&lvcItem);
    lvcItem.pszText = L"finish";
    SendMessage(m_hButtomListView, LVM_INSERTITEM, 0, (LPARAM)&lvcItem);


    ShowWindow(m_hButtomListView, SW_SHOW);
    UpdateWindow(m_hButtomListView);
    return TRUE;
}

[neicole]

没人回答啊，看来要结贴了~

[schlafenhamster]

参考： HWND CreateListView(HINSTANCE hInstance, HWND hwndParent) { DWORD dwStyle; HWND hwndListView; BOOL bSuccess = TRUE; // custom draw dwStyle = WS_TABSTOP | WS_CHILD | WS_BORDER | WS_VISIBLE | LVS_REPORT | LVS_SINGLESEL | LVS_SHOWSELALWAYS; //| LVS_EX_FULLROWSELECT | LVS_EX_DOUBLEBUFFER | LVS_EX_GRIDLINES| LVS_EX_INFOTIP | LVS_AUTOARRANGE | LVS_OWNERDATA; hwndListView = CreateWindowEx( WS_EX_WINDOWEDGE,//WS_EX_CLIENTEDGE,// ex style WC_LISTVIEW, // class name defined in commctrl.h NULL, // window text dwStyle, // style 4, // x position 120, // y position LV_WIDTH, // width LV_HEIGHT, // height hwndParent, // parent (HMENU)IDC_LISTVIEW, // ID (HINSTANCE)GetWindowLong(hwndParent, GWL_HINSTANCE), // instance NULL); // no extra data // if(hwndListView) { ListView_SetExtendedListViewStyleEx(hwndListView,LVS_EX_FULLROWSELECT, LVS_EX_FULLROWSELECT); InitLvHead(hwndListView); // LVITEM lvi; ZeroMemory(&lvi, sizeof(lvi)); lvi.mask=LVIF_TEXT;//|LVIF_IMAGE; lvi.cchTextMax=40; lvi.iSubItem=0; lvi.pszText="MainItem"; lvi.iItem=0; int now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // now=ListView_InsertItem(hwndListView,&lvi); // ListView_SetItemText(hwndListView,now,1,"Column 1"); ListView_SetItemText(hwndListView,now,2,"Column 2"); ListView_SetItemText(hwndListView,now,3,"Column 3"); ListView_SetItemText(hwndListView,now,4,"Column 4"); ListView_SetItemText(hwndListView,now,5,"Column 5"); // // HWND hwndHD=ListView_GetHeader(hwndListView); // int all=Header_GetItemCount(hwndHD); // RECT rc; // Header_GetItemRect(hwndHD,all-1,&rc); return hwndListView; } else { return NULL; } }// BOOL InitLvHead(HWND hwndListView) { LV_COLUMN lvColumn; int i; TCHAR szString[5][20] = { TEXT("Column 1"), TEXT("Column 2"), TEXT("Column 3"), TEXT("Column 4"), TEXT("Column 5")}; //initialize the columns lvColumn.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT ;//| LVCF_SUBITEM; lvColumn.fmt = LVCFMT_LEFT;// ?? | LVCFMT_SPLITBUTTON; lvColumn.cx = 80; for(i = 0; i < 5; i++) { lvColumn.pszText = szString[i]; SendMessage(hwndListView, LVM_INSERTCOLUMN, (WPARAM)i, (LPARAM)&lvColumn); } // return TRUE; }//

[neicole]

原来是69行的一个字母错了~ 谢谢楼上的~ lvcItem.mask = LVCF_TEXT; 改为 lvcItem.mask = LVIF_TEXT;