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LEADTOOLS Raster Imaging C DLL Help

L_ILN_KEYDOWN

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Sent when the user presses a key while the ImageList Control has the focus.

Parameter

Description

wParam

idCtrl = (L_INT) LOWORD(wParam) identifier of control.

 

wNotifyCode = HIWORD(wParam) notification code.

lParam

pKeyInfo = (pLILKEYDOWN) lParam pointer to key info structure.

Comments

Sent when the user presses a key while the ImageList Control has the focus. pKeyInfo contains information about the key that was pressed.

The parent window of the control receives this notification message through the WM_COMMAND message.

See Also

Elements:

L_ILN_SETFOCUS, L_ILN_KILLFOCUS, L_ILN_HSCROLL, L_ILN_VSCROLL, L_ILN_CLICKED, L_ILN_DBLCLCK, L_ILN_ITEMSEL, L_ILM_ITEMSELECTED

Topics:

Using the ImageList Control

 

Image List Control Command Notifications

 

Example

//this function processes all the messages for a window

 L_SIZE_T MainWndProc6(HWND hWnd, L_UINT Message, WPARAM wParam,
                                   LPARAM lParam)
{
   WORD wNotifyCode;
   L_INT idCtl;
   HWND hWndCtrl;
   
   switch (Message)
   {
      case WM_SETFOCUS:
         if(hWnd)
            SetFocus(hWnd);
         break;
      case WM_COMMAND:
         wNotifyCode = HIWORD(wParam); // notification code 
         idCtl       = LOWORD(wParam); // item, control, or accelerator identifier 
         hWndCtrl    = (HWND) lParam;  // handle of control 
         switch(idCtl)
         {
            case IDC_LEADIMAGELIST:
               switch(wNotifyCode)
               {
                  /* other code here */
                  case L_ILN_KEYDOWN:
                     MessageBox(hWnd, TEXT("KeyPress"), TEXT("KeyPress"), MB_OK);
                     break;
                  /* other code here */
               }
               break;
               /* other code here */
         }
         break;
         /* other code here */
   }
   return DefWindowProc (hWnd, Message, wParam, lParam);
}
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