Font in a CEdit control

This is a discussion on Font in a CEdit control within the Windows Programming forums, part of the Platform Specific Boards category; I'm using MFC, and a CEdit control. My problem right now is changing the font. I've asked a few friends ...

  1. #1
    I am the worst best coder Quantrizi's Avatar
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    Font in a CEdit control

    I'm using MFC, and a CEdit control. My problem right now is changing the font. I've asked a few friends for help, and that didn't work out to well (thanks though), and so I thought I'd come here. I've also tried the examples and reading what MSDN says, but that also has failed. Here's the current code I'm using:

    Code:
    #include "stdafx.h"
    #include "NoteX.h"
    #include "NoteXDoc.h"
    #include "NoteXView.h"
    
    CNoteXView *pView;
    
    #include "MainFrm.h"
    
    //.....
    
    void CMainFrame::OnChangeFont() 
    {
    	CFontDialog cfd;
    	CFont   cf;
    	LOGFONT lf;
    
    	if(cfd.DoModal() == IDOK){
    		//cf.CreateFontIndirect(&lf);
    		cfd.GetCurrentFont(&lf);
    		cf.CreateFontIndirect(&lf);
    		pView = (CNoteXView*)GetActiveView();
    		pView->SendMessage(WM_SETFONT, (WPARAM)&cf, 0);
    	}
    }
    Does anyone know why this isn't working?

  2. #2
    Registered User Codeplug's Avatar
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    There are a couple things wrong:
    First, the WM_SETFONT message expects a font handle (or HFONT) in wParam - you are passing in the address of a local stack variable.
    Second, cf is a local stack variable and any resources allocted within cf.CreateFontIndirect(&lf); are released when cf's destructor is called.

    Once you ensure cf persists as long as it needs to, you can use CFont's HFONT cast operator to get the HFONT handle.

    gg

  3. #3
    I am the worst best coder Quantrizi's Avatar
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    Quote Originally Posted by Codeplug
    There are a couple things wrong:
    First, the WM_SETFONT message expects a font handle (or HFONT) in wParam - you are passing in the address of a local stack variable.
    Second, cf is a local stack variable and any resources allocted within cf.CreateFontIndirect(&lf); are released when cf's destructor is called.

    Once you ensure cf persists as long as it needs to, you can use CFont's HFONT cast operator to get the HFONT handle.

    gg
    Thank you, but it's still not working. I'm just gonna scrap the project for now.

  4. #4
    I am the worst best coder Quantrizi's Avatar
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    Thanks to a buddy of mine, I got it working finally.

    Here's the code if anyone wants it:

    PHP Code:
    void CMainFrame::OnFont() 
    {
        
    // TODO: Add your command handler code here
        
    CNoteXView *pView = (CNoteXView*)GetActiveView();

        
    ASSERT(pView != NULL);

        if(
    dlg.DoModal() == IDOK){
            
    dlg.GetCurrentFont(&lf);

            
    font.CreateFontIndirect(&lf);
            
    pView->SetFont(&font);
        }


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