Using VS 2005, I have a ListView control in an ATL dialog. I am creating a image list and trying to use it for both header images and item images in the ListView control. I am doing this in the InitDialog function. When the dialog is displayed I see spaces where the images are suppose to be but they are all blank. If I use the image list to draw a icon I do see the expected image.
The code in brief to set an image in the header (from my Init Dialog) follows.
Any idea what I am doing wrong
Alicia
************* Code Outline *************
INITCOMMONCONTROLSEX iccex;
// Carries data that is used to load // control classes for the rebar // Initialize the INITCOMMONCONTROLSEX structure.iccex.dwSize =
sizeof (INITCOMMONCONTROLSEX);// Load rebar and toolbar control classes.
iccex.dwICC = ICC_LISTVIEW_CLASSES;
// Register rebar and toolbar control classes from the DLL for the // common control.InitCommonControlsEx (&iccex);
int iIconX = 16; int iIconY = 16;m_himagelist = ImageList_Create(iIconX, iIconY,ILC_COLOR, 4, 4);
ATLASSERT(m_himagelist != NULL);
// // load our standard icons //HICON hiconItem = (HICON) LoadImage(_Module.m_hInst, MAKEINTRESOURCE(IDI_BLANK),IMAGE_ICON,iIconX, iIconY,0);
iReturn = ImageList_AddIcon(m_himagelist, hiconItem);
ATLASSERT(iReturn == BLANK_ICON);
DestroyIcon(hiconItem);
//hiconItem = (HICON) LoadImage(_Module.m_hInst, MAKEINTRESOURCE(IDI_TEXT),IMAGE_ICON,iIconX, iIconY,0);
iReturn = ImageList_AddIcon(m_himagelist, hiconItem);
ATLASSERT(iReturn == TEXT_ICON);
DestroyIcon(hiconItem);
// // set extended style //ListView_SetExtendedListViewStyle(m_hwndListView,LVS_EX_SUBITEMIMAGES | LVS_EX_FULLROWSELECT);
// // connect our image list //ATLASSERT(m_himagelist != NULL);
if (m_himagelist == NULL) return FALSE;ListView_SetImageList(m_hwndListView, m_himagelist, LVSIL_SMALL);
i = ImageList_GetImageCount(m_himagelist);
ATLASSERT(i > 0);
// // 1st, clear out any entries from the previous dialog //bReturn = ListView_DeleteAllItems(m_hwndListView);
ATLASSERT(bReturn);
// // add our columns, main item first //lvcolumn.mask = LVCF_TEXT | LVCF_WIDTH | LVCF_IMAGE | LVCF_FMT;
//lvcolumn.fmt = LVCFMT_LEFT | LVCFMT_BITMAP_ON_RIGHT;
lvcolumn.cx = 100;
lvcolumn.pszText = _T(
"Name");lvcolumn.cchTextMax = 4;
lvcolumn.iSubItem = 0;
lvcolumn.iOrder = 1;
lvcolumn.iImage = UP_ICON;
iReturn = ListView_InsertColumn(m_hwndListView,NAME_COLUMN,&lvcolumn);
ATLASSERT(iReturn == NAME_COLUMN);
ListView Control displays blank images
YiuYip
Nick Ericson - MSFT
Thanks a Alicia, could you post the workaround in case somebody else runs through the same issue.
Thanks, Ayman Shoukry VC++ Teammorgan_
Bill Menees
I see no validation code that check is LoadImage succeeded!
Maybe you have problems to load the resource!
Ben Nevarez
It seems that we have the same problem too.
Could you please post the workaround.
Would be very helpful.
Thanks
tjwhiteh
I did some more testing today and found that the list control works correctly in a Win32 test container. If you try and use the same COM dll that contains a ListView control in a ATL dialog in a C# test container the image is missing.
I have a test app if anyone is interested.
Djmegamixes
Is that still an issue
Thanks, Ayman Shoukry VC++ TeamNETallica