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Extending EditString to filter keys [message #31168]

Fri, 11 February 2011 11:54

Jeremi
Messages: 3
Registered: February 2011
Location: spain

Junior Member

Hi all
I am a beginner in Upp. Very cool lib!!
I am trying to make an edit control to acept only letters (a-z and A-Z) so I extended a new class from EditString and i am trying to implement it, like this:

#ifndef _MYEDIT_h
#define _MYEDIT_h
#include <CtrlLib/CtrlLib.h>
using namespace UPP;
class MyEditString : public EditString
{
public:
	typedef MyEditString CLASSNAME;
        MyEditString();
	~MyEditString();	
	virtual bool  Key(dword key, int repcnt);

private:

};
#endif

--------------------------

#include "MyEditString.h"

MyEditString::MyEditString()
{
}

MyEditString::~MyEditString()
{
}

bool MyEditString::Key(dword key, int repcnt)
{
	if(key == K_F)
	{
                Exclamation("f was pressed")
		return true;
	}
	return EditString::Key(key, repcnt);
}

Then I added a EditString to a dialog and change its type from EditString to MyEditString (now just to detect the F and prevent it from appearing in edit box!)

It works. It detects f and it prevents it from appearing in the edit box but if I remove the Exclamation the f appears in the edit box.

I thought that when the return true we are saying that the event is already handled, but returning true the f appears and I want to prevent it from appear.

Any help?

Thank to all of you

Jeremi

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