CEdit (Ctrl + X, C, V, Z, A) (Clipboard functions)

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When subclassing from a CEdit class, the default clipboard functions (Ctrl + X, C, V, Z, A) (Using the keyboard input & not the context menu) wont work.

How to make it possible in both CDialog based apps & so for CFormView on SDI or MDI apps !?

Help me please

Posted 26-Jan-12 4:02am

Mr. Tomay

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2 solutions

Solution 1

You need to add keyboard handling in your application and respond to these key combinations as required. When you receive a CTL + C you should call the CEdit::Copy()[^] function, etc.

Posted 26-Jan-12 4:43am

Richard MacCutchan

Comments

Mr. Tomay 26-Jan-12 13:17pm

Where to handle a CTRL + C combination key (Which handler function should I use from the CEdit subclassed class) ?

Richard MacCutchan 27-Jan-12 3:38am

Which handler function ...
Whichever one you decide should handle it. Personally I would set Ctrl + C as an accelerator connected to my Copy menu item, and use an OnXXX handler to deal with it.

Mr. Tomay 6-Feb-12 12:33pm

you don't understand my question. Anyway I have found a solution to my issue (The handler function I was talking about is as follows):


BOOL CEditEx::PreTranslateMessage(MSG* pMsg) 
{
	// TODO: Add your specialized code here and/or call the base class
	// Intercept Ctrl + Z (Undo), Ctrl + X (Cut), Ctrl + C (Copy), Ctrl + V (Paste) and Ctrl + A (Select All)
	// before CEdit base class gets a hold of them.
	if (pMsg->message == WM_KEYDOWN && ::GetKeyState(VK_CONTROL) < 0)
		switch (pMsg->wParam)
		{
		case 'Z':
			Undo();
			
			return TRUE;

		case 'X':
			Cut();
			
			return TRUE;

		case 'C':
			Copy();
			
			return TRUE;

		case 'V':
			Paste();
			
			return TRUE;

		case 'A':
			SetSel(0, -1);
			
			return TRUE;
		}
	
	return CEdit::PreTranslateMessage(pMsg);
}

Mohibur Rashid 13-May-12 19:21pm

Richard MacCutchan understood your question very well, but you didn't understand his answer. He answered the same as your solution

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Mr. Tomay · Accepted Answer · 2012-05-13T14:51:00

C++

BOOL CEditEx::PreTranslateMessage(MSG* pMsg)
{
    // TODO: Add your specialized code here and/or call the base class
    // Intercept Ctrl + Z (Undo), Ctrl + X (Cut), Ctrl + C (Copy), Ctrl + V (Paste) and Ctrl + A (Select All)
    // before CEdit base class gets a hold of them.
    if (pMsg-&gt;message == WM_KEYDOWN &amp;&amp; ::GetKeyState(VK_CONTROL) &lt; 0)
        switch (pMsg-&gt;wParam)
        {
        case 'Z':
            Undo();

            return TRUE;

        case 'X':
            Cut();

            return TRUE;

        case 'C':
            Copy();

            return TRUE;

        case 'V':
            Paste();

            return TRUE;

        case 'A':
            SetSel(0, -1);

            return TRUE;
        }

    return CEdit::PreTranslateMessage(pMsg);
}