Enable/disable menu items based on edit control state.
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@ -113,6 +113,27 @@ static VOID NOTEPAD_InitData(VOID)
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*p = '\0';
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}
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/***********************************************************************
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* Enable/disable items on the menu based on control state
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*/
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static VOID NOTEPAD_InitMenuPopup(HMENU menu, int index)
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{
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int enable;
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EnableMenuItem(menu, CMD_UNDO,
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SendMessage(Globals.hEdit, EM_CANUNDO, 0, 0) ? MF_ENABLED : MF_GRAYED);
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EnableMenuItem(menu, CMD_PASTE,
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IsClipboardFormatAvailable(CF_TEXT) ? MF_ENABLED : MF_GRAYED);
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enable = SendMessage(Globals.hEdit, EM_GETSEL, 0, 0);
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enable = (HIWORD(enable) == LOWORD(enable)) ? MF_GRAYED : MF_ENABLED;
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EnableMenuItem(menu, CMD_CUT, enable);
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EnableMenuItem(menu, CMD_COPY, enable);
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EnableMenuItem(menu, CMD_DELETE, enable);
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EnableMenuItem(menu, CMD_SELECT_ALL,
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GetWindowTextLength(Globals.hEdit) ? MF_ENABLED : MF_GRAYED);
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}
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/***********************************************************************
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*
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* NOTEPAD_WndProc
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@ -178,6 +199,10 @@ static LRESULT WINAPI NOTEPAD_WndProc(HWND hWnd, UINT msg, WPARAM wParam,
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DoOpenFile(szFileName);
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break;
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}
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case WM_INITMENUPOPUP:
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NOTEPAD_InitMenuPopup((HMENU)wParam, lParam);
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break;
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default:
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return DefWindowProc(hWnd, msg, wParam, lParam);
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