Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
Send this message to be notified when an item is unselected due to the user selecting or unselecting one or more items in the ImageList Control.
Parameter |
Description |
wParam |
idCtlr = (L_INT)LOWORD(wParam) identifier of the control. |
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wNotifyCode = HIWORD(wParam) will be L_ILN_ITEMUNSEL. |
lParam |
Pointer to an LILITEMSEL structure containing information about the unselected item. |
Returns
None.
Comments
This message is sent to the ImageList Control's window by itself when an Item is unselected by the user.
You can use this message instead of the L_ILN_ITEMUNSEL command notification when you are sub-classing the ImageList Control.
The lItem member of the LILITEMSEL structure pointed to by lParam will contain the 0-based index of the unselected item.
See Also
Elements: |
L_ILM_ITEMSELECTED, L_ILM_GETSELCOUNT, L_ILM_GETITEM, L_ILM_GETSELITEMS, L_ILN_ITEMSEL, L_ILN_ITEMUNSEL |
Topics: |
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Example
this sample code comes from an example that sub-classes the LEAD ImageList Control Window this function processes the L_ILM_ITEMUNSELECTED message to be notified when an item is unselected
LRESULT ILM_ITEMUNSELECTEDExample(HWND hCtrl, UINT msg, WPARAM wParam, LPARAM lParam) { UNREFERENCED_PARAMETER(wParam); UNREFERENCED_PARAMETER(msg); L_TCHAR szBuf[300]; pLILITEMSEL pItem=NULL; pItem = (pLILITEMSEL)lParam; if(pItem) { wsprintf(szBuf, TEXT("Item %ld was unselected\n"), pItem->lIndex); MessageBox(hCtrl, szBuf, TEXT("UnSelected"), MB_OK); } return 0; }