How better to create a window by "window.h" ?

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Method 1:

HWND cbb_Disk1;
cbb_Disk1 = CreateWindow(_T("COMBOBOX"),_T(""),WS_CHILD|WS_VISIBLE|CBS_DROPDOWN|CBS_AUTOHSCROLL|CBS_UPPERCASE|CBS_SORT,T_ToaDo.m_iX,T_ToaDo.m_iY,T_ToaDo.m_iW,T_ToaDo.m_iH,wd_Current,(HMENU)IDCBB_DISK1,ist_Current,NULL);

->call by cbb_Disk1

Method 2:

CreateWindow(_T("COMBOBOX"),_T(""),WS_CHILD|WS_VISIBLE|CBS_DROPDOWN|CBS_AUTOHSCROLL|CBS_UPPERCASE|CBS_SORT,T_ToaDo.m_iX,T_ToaDo.m_iY,T_ToaDo.m_iW,T_ToaDo.m_iH,wd_Current,(HMENU)IDCBB_DISK1,ist_Current,NULL);

-> call by GetDlgItem(wd_Current, IDCBB_DISK1);

I don't know the better way: faster?:confused::confused::confused:

Posted 3-Apr-10 2:53am

Chau Tri Vu

Updated 3-Apr-10 5:51am

Saurabh.Garg

v2

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Alan N · Accepted Answer · 2010-04-03T14:27:00

Hi,
Are you are asking if is better to store a window handle or retrieve it via GetDlgItem? If you think about it, getting the window handle will always be fast compared to any operation you may perform using the handle, e.g. anything that involves redrawing.

On that basis the use of the saved hWnd or GetDlgItem won't make any real difference to the speed of your application and you should use whichever gives clearer code. Personally I only use GetDlgItem when the window has been defined via a dialog in a resource file.

Alan.

«_Superman_» · Accepted Answer · 2010-04-03T17:58:00

Solution 3

If you're using MFC, you can do this -

CComboBox cmb;
cmb.Create(WS_CHILD|WS_VISIBLE|CBS_DROPDOWN|CBS_AUTOHSCROLL|CBS_UPPERCASE|CBS_SORT, CRect(T_ToaDo.m_iX,T_ToaDo.m_iY,T_ToaDo.m_iW,T_ToaDo.m_iH), this, IDCBB_DISK1);

Posted 3-Apr-10 17:58pm

«_Superman_»

Richard MacCutchan · Accepted Answer · 2010-04-03T05:00:00

Solution 1

Your question is not very clear; are you trying to add the combobox to a main window or to a dialog window? Can you try to explain what you are trying to achieve?

Posted 3-Apr-10 5:00am

Richard MacCutchan