Create Search dialog box in VC ++ 6.0

 

The search and replace dialog box is also a non-Modal Dialog Box. Therefore, the creation process is similar to that of the create non-modal dialog box in MFC.

First create a window, set the relevant parameters, and then use it when it is displayed.

Create prototype: Virtual bool create (bool bfinddialogonly,
// True for find, false for findreplace
Lpctstr lpszfindwhat,                                   // Default string to be searched
Lpctstr lpszreplacewith = NULL,               // The default string to be searched and replaced
DWORD dwflags = fr_down,                             // Some attributes in the Setting dialog box are described below.
Cwnd * pparentwnd = NULL );                           // The parent window of the dialog box

Description of dwflags ):

         If fr_down is set, the "search down" radio button in the dialog box is selected. If no option is set, the "search up" radio button is selected;

Fr_hideupdown does not display the find direction radio button;

Fr_hidematchcase does not show case-sensitive check buttons;

Fr_hidewholeword does not display the "full match" Check button;
　　
Fr_matchcase: Enable the case-sensitive check button to be selected;

Fr_wholeword: make the "match all" Check button selected;

Fr_nomatchcase: Enable the case-sensitive check button to be disabled (grayed out;

Fr_noupdown: the single-choice button in the search direction is disabled (grayed out;

Fr_nowholeword: make the check button of Full-character match disabled (dimmed;

Fr_showhelp displays a Help button in the dialog box.

Create an instance of the search window as follows:

Cfindreplacedialog * pfinddlg =
New cfindreplacedialog;  
// Because the non-modal dialog box is displayed, use the new command to allocate memory.
If (! Pfinddlg-> Create (true, _ T ("Hyp's knowledge base"), null, fr_down | fr_matchcase | fr_wholeword, this) // as described above
{
      Return;
}
Pfinddlg-> showwindow (sw_show );  
// Display the window after it is created
Pfinddlg-> setactivewindow ();    
// Set as the activity window

Create an instance of the find and replace window as follows:

Cfindreplacedialog * preplacedlg = new cfindreplacedialog;
If (! Preplacedlg-> Create (false, _ T ("Hyp"), _ T ("Hyp's knowledge base"), fr_down, this ))
{
      Return;
}
Preplacedlg-> showwindow (sw_show );
Preplacedlg-> setactivewindow ();

In the displayed dialog box, you still need to add some response functions. I found that there is no ready-made message response.

The general steps are as follows:

Add the following under # pragma once in the header file of the "search and replace" dialog box

Const
Int wm_findreplace =: registerwindowmessage (findmsgstring); // register findmsgstring as a wm_findreplace message

And the message ing function generated in the header file

Afx_msg long onfindreplace (wparam, lparam );

Associate the message ing function with the wm_findreplace message in the source file.

Begin_message_map (...)

...

On_registered_message (wm_findreplace, onfindreplace)

...

End_message_map ()

Next, write the onfindreplace function.

Long chypdlg: onfindreplace (wparam, lparam)
{
      // Todo: add the control notification handler code here
      Cfindreplacedialog * pdlg = cfindreplacedialog: getnotifier (lparam );
      // Write your own code for specific search and replacement
      // Pdlg-> getfindstring ();   This function returns a query string.
      // Pdlg-> getreplacestring (); this function returns a replacement string.
      // Pdlg-> searchdown ();   This function can be used to determine whether to search up or down, true is down, and ooxx
      // Pdlg-> matchcase ();   This function can determine whether it is case sensitive.
      // Pdlg-> matchwholeword (); this function can be used to determine whether a full-character match exists.
      If (pdlg! =
Null)
      {

       If (pdlg-> findnext ())
       {
           MessageBox ("findnext! ",
"Hyp's knowledge base", mb_ OK );
       }
       Else
           
If (pdlg-> replaceall ())
           {
               MessageBox ("replaceall! ",
"Hyp's knowledge base", mb_ OK );
           }
           
Else
               If (pdlg-> replacecurrent ()){
                   MessageBox ("replacecurrent! ",
"Hyp's knowledge base", mb_ OK );
               }
   }
   Delete pdlg;
// The dialog box is automatically destroyed after the click is added.
   Return
1;
}

The specific search and replacement functions are added to the onfindreplace function.