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Are all my windows orphans? GetParent() failure

MattS423 · 2004-06-05T09:14:27

OK, so the user is supposed to click a button, and a dialog box pops up.They then enter a number in an edit box, and then I take that number, do a search on it, and select a peice of data in a list box the parent of this pop-up box. Here's some code to try to explain this: case IDC_BUTTON_FIND: Ret = DialogBox(hInst,MAKEINTRESOURCEIDD_DIALOG_FIND), hwndDlg,FindDialogProc); break; That makes the dialog box pop up quite nicely. Now for the Dialog procedure. You click the OK button (IDOK) and it grabs the number from the Edit box (IDC_EDIT_IDCODE) and does some stuff with it, then selects a specific player in a list box. Source Code: // Parent is an HWND case IDOK: Parent = GetParent(hwndFindDlg); //FAILS! //The debugger tells me that at this point, Parent == NULL IDCode = GetDlgItemInt(hwndFindDlg,IDC_EDIT_IDCODE,NULL,TRUE); if(!FindPlayer(IDCode,FoundPlayerIndex)) { EndDialog(hwndFindDlg,1); SetFocus(Parent); break; } PlayerListBox = GetDlgItem(Parent,IDC_LIST_PLAYERS); Sel = SendMessage(PlayerListBox,LB_SELECTSTRING,-1, (LPARAM)Players[FoundPlayerIndex].Name); SendMessage(PlayerListBox,LB_SETCURSEL,Sel,0); EndDialog(hwndFindDlg,1); SetFocus(Parent); break; This is all well and good, except for one little thing....GetParent() ALWAYS fails. After I call it, Parent == NULL. Because of this, I can't do anything with that list box...because i cant do a GetDlgItem() without the parent window handle. Is there any reason for this? Why doesn't it work? Help? Thanks alot --Matt [edited by - MattS423 on June 2, 2004 10:11:49 PM]

General and Gameplay Programming Programming

Started by MattS423 June 02, 2004 01:41 PM

9 comments, last by MattS423 19 years, 10 months ago

Oxyd

1,162

June 05, 2004 09:14 AM

Since DialogBox creates MODAL dialog it waits till the dialog is closed. Thus - if you can read the return value of DialogBox, it means that EndDialog (...) function was called from within the dialog. So I guess the error is probably somewhere else. But it is strange, that you can get to the WM_COMMAND message handler. Maybe post more code...

Oxyd

- Unreadable code is code written on a piece of paper, but not the one, in which the programmer is using a space in the place you don''t.
- Real programmers aren''t afraid of goto

Are all my windows orphans? GetParent() failure

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