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How to find Handle to window (HWND) based on Window Caption?

  It fairly very easy then it seems too , Windows have provided you two API to do so, and these api have saved my neck many times, now let get introduced to them, they are  FindWindow and FindWindowEx. I have written a small function which would help you finding handle to window based on caption.

HWND GetWindowHandle(LPCTSTR strSearch, LPCTSTR strClass = NULL)
{
 TCHAR lpString[_MAX_PATH];
 CString strTitle;
 int iFind = -1;
 HWND hWnd = ::FindWindow(strClass,NULL);

while(hWnd != NULL)
 {
  ::GetWindowText(hWnd,lpString,_MAX_PATH);
  TRACE1("%s\n",lpString);
  strTitle = lpString;
  strTitle.MakeUpper();
  iFind = strTitle.Find(strSearch);

if(iFind != -1)
  return hWnd;

hWnd = ::FindWindowEx(NULL,hWnd,strClass,NULL);
 }
  return hWnd;
}

Just call use this function to find the handle of Window  based on caption name.

HWND hWnd = GetWindowHandle("REGISTRY",NULL);

PS: There two thing to note, to make this function work properly, first caption should be provided in capital letter, to make function search properly and secondly, caption should be unique, if not then you must have to provide the window class in second parameter, which may be NULL in most of cases. E.g. this function will return HWND of first NotePad windows, if more than one NotePad Window is open and you have passed caption as NOTEPAD.

How to display directories in a combo box?

Just come across somebody asking ComboBox filled with Directories and other stuff. There Mr Nibu Thomas replied that you can use DlgDirListComboBox for that. I just dig it up that api and created a small source code for you that will above tasks!

In Win32Api

TCHAR szDrive[MAX_PATH] = _T("C:\\YYY\\*.*");
DlgDirListComboBox(HANDLEOFDIALOG,szDrive,IDC_COMBO1, IDC_STATIC_1234, DDL_DIRECTORY|  DDL_READONLY|  DDL_DRIVES);

In MFC, Under Class drived from CDialog

TCHAR szDrive[MAX_PATH] = _T("C:\\YYY\\*.*");
DlgDirListComboBox(szDrive,IDC_COMBO1,IDC_STATIC_1234, DDL_DIRECTORY| DDL_READONLY | DDL_DRIVES);

see a small pic of same here :-