LEADTOOLS Raster Imaging C DLL Help > LEADTOOLS Raster Imaging Features > Windows > Window Messages > ImageList Control's > L_ILN_SETFOCUS |
Sent when an ImageList Control receives the keyboard focus.
Parameter |
Description |
wParam |
idCtrl = (L_INT) LOWORD(wParam) identifier of control. |
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wNotifyCode = HIWORD(wParam) notification code. |
lParam |
hWndCtrl = (HWND) lParam handle of the control. |
Comments
Sent when an ImageList Control receives the keyboard focus.
The parent window of the control receives this notification message through the WM_COMMAND message.
See Also
Elements: |
L_ILN_KILLFOCUS, L_ILN_HSCROLL, L_ILN_VSCROLL, L_ILN_CLICKED, L_ILN_DBLCLCK, L_ILN_ITEMSEL, L_ILN_ITEMUNSEL, L_ILN_KEYDOWN |
Topics: |
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Example
this function processes all the messages for a window
static HWND hCtl; L_SIZE_T MainWndProc1(HWND hWnd, L_UINT Message, WPARAM wParam, LPARAM lParam) { WORD wNotifyCode; L_INT idCtl; HWND hWndCtrl; switch (Message) { case WM_SETFOCUS: if(hCtl) SetFocus(hCtl); 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) { case L_ILN_SETFOCUS: MessageBeep(MB_OK); break; case L_ILN_KILLFOCUS: MessageBeep(MB_ICONEXCLAMATION); break; /* other code here */ } break; /* other code here */ } break; /* other code here */ } return DefWindowProc (hWnd, Message, wParam, lParam); }