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kot1990
Expert Cheater
 Reputation: 1
Joined: 06 Sep 2009
Posts: 131
Location: Greece
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 Posted: Tue Apr 06, 2010 8:51 pm Post subject: creating tabs for windows .... |
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I have a nightmare here with creating tabs for a window. I couldn't get it work, when I change to another tab the function CreateDialogIndirect() fails and the program crashes.
Here's the code
| Code: | DLGTEMPLATE *apRes1;
DLGTEMPLATE *apRes2;
HRSRC hrsrc = FindResource(dahak,MAKEINTRESOURCE(IDD_TAB1),RT_DIALOG);
HGLOBAL hglb = LoadResource((HINSTANCE)hInstance, hrsrc);
apRes1 = (DLGTEMPLATE*)LockResource(hglb);
hrsrc = FindResource(dahak,MAKEINTRESOURCE(IDD_TAB2),RT_DIALOG);
hglb = LoadResource((HINSTANCE)hInstance, hrsrc);
apRes2 = (DLGTEMPLATE*)LockResource(hglb);
RECT rcClient;
GetClientRect(mainDialog, &rcClient);
InitCommonControls();
tab = CreateWindow(WC_TABCONTROL, "",
WS_CHILD | WS_CLIPSIBLINGS | WS_VISIBLE,
0, 0, rcClient.right, rcClient.bottom,
mainDialog, NULL, (HINSTANCE)hInstance, NULL);
TCITEM tabItem;
tabItem.mask = TCIF_TEXT | TCIF_IMAGE;
tabItem.iImage = -1;
tabItem.pszText = "tab1";
TabCtrl_InsertItem(tab,0,&tabItem);
tabItem.pszText = "tab2";
TabCtrl_InsertItem(tab,1,&tabItem);
tab1 = GetDlgItem(mainDialog, IDD_TAB1);
tab2 = GetDlgItem(mainDialog, IDD_TAB2);
currTab = tab1; |
Ok, the tab thing is created in a dialog (mainDialog), I got the 2 tabs visible with labels "tab1" and "tab2" as they supposed to be. The mainDialog procedure for the tab is this:
| Code: | case WM_NOTIFY:
switch (((LPNMHDR)lParam)->code)
{
case TCN_SELCHANGE:
iSel = TabCtrl_GetCurSel(tab);
if(iSel == 1)
{
DestroyWindow(currTab);
currTab = CreateDialogIndirect((HINSTANCE)hInstance, apRes2, mainDialog, childDlgProc2);
}
break;
}
break; |
I made this just for testing, when iSel == 1 then the second tab has just been selected, the one with the label "tab2", then the CreateDialogIndirect() executes and the program crashes. If I comment out this function nothing crashes, I eved tried to put a messagebox there and it shows. |
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Slugsnack
Grandmaster Cheater Supreme
![]() Reputation: 71
Joined: 24 Jan 2007
Posts: 1857
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| Posted: Wed Apr 07, 2010 8:40 am Post subject: |
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| I'm not sure you should use DestroyWindow() for ending a dialog, instead use EndDialog(). If you could post more of your code it would help.. |
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kot1990
Expert Cheater
Reputation: 1
Joined: 06 Sep 2009
Posts: 131
Location: Greece
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| Posted: Thu Apr 08, 2010 9:35 pm Post subject: |
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thx, but I already found my way to do it. I played a little bit with ShowWindow() setting it true or false, so the dialog just hides. The DestroyWindow() destroys completely the window and then CreateDialogIndirect() creates another window with different handles everytime. I don't want this to happen and lose the controls. So I did like this:
| Code: |
DLGTEMPLATE * WINAPI DoLockDlgRes(LPCSTR lpszResName)
{
HRSRC hrsrc = FindResource(dahak, lpszResName, RT_DIALOG);
HGLOBAL hglb = LoadResource(dahak, hrsrc);
return (DLGTEMPLATE *) LockResource(hglb);
}
void createTabs()
{
RECT rcClient;
GetClientRect(mainDialog, &rcClient);
InitCommonControls();
tab = CreateWindow(WC_TABCONTROL, "",
WS_CHILD | WS_CLIPSIBLINGS | WS_VISIBLE,
0, 0, rcClient.right, rcClient.bottom,
mainDialog, NULL, (HINSTANCE)hInstance, NULL);
TCITEM tabItem;
tabItem.mask = TCIF_TEXT | TCIF_IMAGE;
tabItem.iImage = -1;
tabItem.pszText = "attack";
TabCtrl_InsertItem(tab,0,&tabItem);
tabItem.pszText = "items";
TabCtrl_InsertItem(tab,1,&tabItem);
apRes1 = DoLockDlgRes(MAKEINTRESOURCE(IDD_TAB_ATTACK));
apRes2 = DoLockDlgRes(MAKEINTRESOURCE(IDD_TAB_ITEMS));
attack_tab_hwnd = CreateDialogIndirect((HINSTANCE)hInstance, apRes1, mainDialog, childDlgProc);
items_tab_hwnd = CreateDialogIndirect((HINSTANCE)hInstance, apRes2, mainDialog, childDlgProc2);
SetWindowPos(attack_tab_hwnd,HWND_TOP,0,30,0,0,SWP_NOSIZE);
SetDlgItemText(attack_tab_hwnd,EDIT_FARMR,"1000");
}
HWND findCorrectTabHide(int lastTab)
{
if(lastTab == 0)
return attack_tab_hwnd;
else if(lastTab == 1)
return items_tab_hwnd;
} |
and the process
| Code: |
case WM_NOTIFY:
switch (((LPNMHDR)lParam)->code)
{
case TCN_SELCHANGE:
tabSel = TabCtrl_GetCurSel(tab);
if(tabSel == 0)
{
ShowWindow(findCorrectTabHide(lastTabSel),SW_HIDE);
lastTabSel = tabSel;
ShowWindow(attack_tab_hwnd,SW_SHOW);
SetWindowPos(attack_tab_hwnd,HWND_TOP,0,30,0,0,SWP_NOSIZE);
}
else if(tabSel == 1)
{
ShowWindow(findCorrectTabHide(lastTabSel),SW_HIDE);
lastTabSel = tabSel;
ShowWindow(items_tab_hwnd,SW_SHOW);
SetWindowPos(items_tab_hwnd,HWND_TOP,0,30,0,0,SWP_NOSIZE);
}
break;
}
break; |
EDIT: the crash was happening because apRes1 and apRes2 were declares locally but I had also global apRes1 and apRes2 and they were null when CreateDialogIndirect() executed. |
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