LEADTOOLS Raster Imaging C DLL Help > LEADTOOLS Raster Imaging Features > Windows > Window Messages > ImageList Control's > L_ILN_KEYDOWN |
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. |
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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: |
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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); }