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Enable/disable menu items based on edit control state.

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Kevin Koltzau 2005-05-13 13:55:32 +00:00 committed by Alexandre Julliard
parent b5eacf9a8d
commit 55c1073b76
1 changed files with 25 additions and 0 deletions
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25
programs/notepad/main.c
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@ -113,6 +113,27 @@ static VOID NOTEPAD_InitData(VOID)
*p = '\0';
}
/***********************************************************************
* Enable/disable items on the menu based on control state
*/
static VOID NOTEPAD_InitMenuPopup(HMENU menu, int index)
{
int enable;
EnableMenuItem(menu, CMD_UNDO,
SendMessage(Globals.hEdit, EM_CANUNDO, 0, 0) ? MF_ENABLED : MF_GRAYED);
EnableMenuItem(menu, CMD_PASTE,
IsClipboardFormatAvailable(CF_TEXT) ? MF_ENABLED : MF_GRAYED);
enable = SendMessage(Globals.hEdit, EM_GETSEL, 0, 0);
enable = (HIWORD(enable) == LOWORD(enable)) ? MF_GRAYED : MF_ENABLED;
EnableMenuItem(menu, CMD_CUT, enable);
EnableMenuItem(menu, CMD_COPY, enable);
EnableMenuItem(menu, CMD_DELETE, enable);
EnableMenuItem(menu, CMD_SELECT_ALL,
GetWindowTextLength(Globals.hEdit) ? MF_ENABLED : MF_GRAYED);
}
/***********************************************************************
*
* NOTEPAD_WndProc
@ -178,6 +199,10 @@ static LRESULT WINAPI NOTEPAD_WndProc(HWND hWnd, UINT msg, WPARAM wParam,
DoOpenFile(szFileName);
break;
}
case WM_INITMENUPOPUP:
NOTEPAD_InitMenuPopup((HMENU)wParam, lParam);
break;
default:
return DefWindowProc(hWnd, msg, wParam, lParam);