我正在尝试创建一个列表视图，一个带有图标的项目，但我创建了该项目，但没有显示图标。
我尝试传递
NULLGetModuleHandle(NULL)HWND CreateListView (HWND hwndParent)
{
INITCOMMONCONTROLSEX icex; // Structure for control initialization.
icex.dwICC = ICC_LISTVIEW_CLASSES;
InitCommonControlsEx(&icex);
RECT rcClient; // The parent window's client area.
GetClientRect (hwndParent, &rcClient);
// Create the list-view window in report view with label editing enabled.
HWND hWndListView = CreateWindow(WC_LISTVIEW,
"",
WS_CHILD | LVS_REPORT | LVS_EDITLABELS,
0, 0,
rcClient.right - rcClient.left,
rcClient.bottom - rcClient.top,
hwndParent,
NULL,
(HINSTANCE)GetWindowLong(hwndParent,GWL_HINSTANCE),
NULL);
return (hWndListView);
}
VOID SetView(HWND hWndListView, DWORD dwView)
{
// Retrieve the current window style.
DWORD dwStyle = GetWindowLong(hWndListView, GWL_STYLE);
// Set the window style only if the view bits changed.
if ((dwStyle & LVS_TYPEMASK) != dwView)
{
SetWindowLong(hWndListView,
GWL_STYLE,
(dwStyle & ~LVS_TYPEMASK) | dwView);
} // Logical OR'ing of dwView with the result of
} // a bitwise AND between dwStyle and
// the Unary complenent of LVS_TYPEMASK.
BOOL InitListViewColumns(HWND hWndListView, int C_COLUMNS, int FirstColumn)
{
LPSTR szText[256]; // Temporary buffer.
LVCOLUMN lvc;
int iCol;
// Initialize the LVCOLUMN structure.
// The mask specifies that the format, width, text,
// and subitem members of the structure are valid.
lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
// Add the columns.
for (iCol = 0; iCol < C_COLUMNS; iCol++)
{
lvc.iSubItem = iCol;
lvc.pszText = (LPSTR)szText;
lvc.cx = 100; // Width of column in pixels.
if ( iCol < 2 )
lvc.fmt = LVCFMT_LEFT; // Left-aligned column.
else
lvc.fmt = LVCFMT_RIGHT; // Right-aligned column.
// Load the names of the column headings from the string resources.
LoadString((HINSTANCE)GetWindowLong((HWND)GetWindowLong(hWndListView,GWL_HWNDPARENT),GWL_HINSTANCE),
FirstColumn + iCol,
(LPSTR)szText,
sizeof(szText)/sizeof(szText[0]));
// Insert the columns into the list view.
if (ListView_InsertColumn(hWndListView, iCol, &lvc) == -1)
return FALSE;
}
return TRUE;
}
BOOL InsertListViewItems(HWND hWndListView, LPSTR text, LPVOID iImage)
{
LVITEM lvI;
// Initialize LVITEM members that are common to all items.
lvI.pszText = text; // Sends an LVN_GETDISPINFO message.
lvI.cchTextMax= strlen(text);
lvI.mask = LVIF_TEXT | LVIF_IMAGE |LVIF_STATE;
lvI.stateMask = 0;
lvI.iSubItem = 0;
lvI.state = 0;
int index=ListView_GetItemCount(hWndListView)+1;
lvI.iItem = index;
lvI.iImage = (int)iImage;
// Insert items into the list.
if (ListView_InsertItem(hWndListView, &lvI) == -1)
return FALSE;
return TRUE;
}
BOOL InitListViewImageLists(HWND hWndListView, LPVOID IDI_ITEM, HINSTANCE hInstance)
{
HICON hiconItem; // Icon for list-view items.
HIMAGELIST hLarge; // Image list for icon view.
HIMAGELIST hSmall; // Image list for other views.
// Create the full-sized icon image lists.
hLarge = ImageList_Create(GetSystemMetrics(SM_CXICON),
GetSystemMetrics(SM_CYICON),
ILC_MASK, 1, 1);
hSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
GetSystemMetrics(SM_CYSMICON),
ILC_MASK, 1, 1);
// Add an icon to each image list.
hiconItem = LoadIcon(hInstance,(LPCTSTR)IDI_ITEM);
ImageList_AddIcon(hLarge, hiconItem);
ImageList_AddIcon(hSmall, hiconItem);
DestroyIcon(hiconItem);
// Assign the image lists to the list-view control.
ListView_SetImageList(hWndListView, hLarge, LVSIL_NORMAL);
ListView_SetImageList(hWndListView, hSmall, LVSIL_SMALL);
return TRUE;
}
hWnd[1] = CreateListView((HWND)hWnd[0]);
InitListViewImageLists((HWND)hWnd[1], NULL, NULL);
SetView((HWND)hWnd[1], LVS_ICON);
InitListViewColumns((HWND)hWnd[1], 1, IDS_FIRSTCOLUMN);
InsertListViewItems((HWND)hWnd[1], "Windows", NULL);
对于构建系统：Microsoft Visual C/C++ 6.0
正如 Luke 和 Remy Lebeau 所说，这是正确的。我确实将 NULL 传递给了
InitListViewImageLists()InsertListViewItems()并且，
LPSTRInitListViewColumns()LPVOIDInsertListViewItems()这是新代码：
HWND CreateListView (HWND hwndParent)
{
INITCOMMONCONTROLSEX icex; // Structure for control initialization.
icex.dwICC = ICC_LISTVIEW_CLASSES;
InitCommonControlsEx(&icex);
RECT rcClient; // The parent window's client area.
GetClientRect (hwndParent, &rcClient);
// Create the list-view window in report view with label editing enabled.
HWND hWndListView = CreateWindow(WC_LISTVIEW,
"",
WS_CHILD | LVS_REPORT | LVS_EDITLABELS,
0, 0,
rcClient.right - rcClient.left,
rcClient.bottom - rcClient.top,
hwndParent,
NULL,
(HINSTANCE)GetWindowLong(hwndParent,GWL_HINSTANCE),
NULL);
return (hWndListView);
}
VOID SetView(HWND hWndListView, DWORD dwView)
{
// Retrieve the current window style.
DWORD dwStyle = GetWindowLong(hWndListView, GWL_STYLE);
// Set the window style only if the view bits changed.
if ((dwStyle & LVS_TYPEMASK) != dwView)
{
SetWindowLong(hWndListView,
GWL_STYLE,
(dwStyle & ~LVS_TYPEMASK) | dwView);
} // Logical OR'ing of dwView with the result of
} // a bitwise AND between dwStyle and
// the Unary complenent of LVS_TYPEMASK.
BOOL InitListViewColumns(HWND hWndListView, int C_COLUMNS, int FirstColumn)
{
LPSTR szText[256]; // Temporary buffer.
LVCOLUMN lvc;
int iCol;
// Initialize the LVCOLUMN structure.
// The mask specifies that the format, width, text,
// and subitem members of the structure are valid.
lvc.mask = LVCF_FMT | LVCF_WIDTH | LVCF_TEXT | LVCF_SUBITEM;
// Add the columns.
for (iCol = 0; iCol < C_COLUMNS; iCol++)
{
lvc.iSubItem = iCol;
lvc.pszText = (LPSTR)szText;
lvc.cx = 100; // Width of column in pixels.
if ( iCol < 2 )
lvc.fmt = LVCFMT_LEFT; // Left-aligned column.
else
lvc.fmt = LVCFMT_RIGHT; // Right-aligned column.
// Load the names of the column headings from the string resources.
LoadString((HINSTANCE)GetWindowLong((HWND)GetWindowLong(hWndListView,GWL_HWNDPARENT),GWL_HINSTANCE),
FirstColumn + iCol,
(LPSTR)szText,
sizeof(szText)/sizeof(szText[0]));
// Insert the columns into the list view.
if (ListView_InsertColumn(hWndListView, iCol, &lvc) == -1)
return FALSE;
}
return TRUE;
}
BOOL InsertListViewItems(HWND hWndListView, LPSTR text, LPVOID iImage)
{
LVITEM lvI;
// Initialize LVITEM members that are common to all items.
lvI.pszText = text; // Sends an LVN_GETDISPINFO message.
lvI.cchTextMax= strlen(text);
lvI.mask = LVIF_TEXT | LVIF_IMAGE |LVIF_STATE;
lvI.stateMask = 0;
lvI.iSubItem = 0;
lvI.state = 0;
int index=ListView_GetItemCount(hWndListView)+1;
lvI.iItem = index;
lvI.iImage = (int)iImage;
// Insert items into the list.
if (ListView_InsertItem(hWndListView, &lvI) == -1)
return FALSE;
return TRUE;
}
BOOL InitListViewImageLists(HWND hWndListView, int IDI_ITEM, HINSTANCE hInstance)
{
HICON hiconItem; // Icon for list-view items.
HIMAGELIST hLarge; // Image list for icon view.
HIMAGELIST hSmall; // Image list for other views.
// Create the full-sized icon image lists.
hLarge = ImageList_Create(GetSystemMetrics(SM_CXICON),
GetSystemMetrics(SM_CYICON),
ILC_MASK, 1, 1);
hSmall = ImageList_Create(GetSystemMetrics(SM_CXSMICON),
GetSystemMetrics(SM_CYSMICON),
ILC_MASK, 1, 1);
// Add an icon to each image list.
hiconItem = LoadIcon(hInstance,(LPCTSTR)IDI_ITEM);
ImageList_AddIcon(hLarge, hiconItem);
ImageList_AddIcon(hSmall, hiconItem);
DestroyIcon(hiconItem);
// Assign the image lists to the list-view control.
ListView_SetImageList(hWndListView, hLarge, LVSIL_NORMAL);
ListView_SetImageList(hWndListView, hSmall, LVSIL_SMALL);
return TRUE;
}
hWnd[1] = CreateListView((HWND)hWnd[0]);
InitListViewImageLists((HWND)hWnd[1], IDI_DS, hInst);
SetView((HWND)hWnd[1], LVS_ICON);
InitListViewColumns((HWND)hWnd[1], 1, IDS_FIRSTCOLUMN);
InsertListViewItems((HWND)hWnd[1], "Windows", 0);