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How to Use a Font Duplicate

  • Article

This section explains how to use a font duplicate to apply a number of changes to a text range, all at once.

What you need to know

Technologies

Prerequisites

  • C/C++
  • Windows User Interface Programming

Instructions

Use a Font Duplicate

The following example shows how a font duplicate can be used to apply a number of changes to a range at once.

void ChangeFontNameSizeBold(ITextSelection *pSel)
{
    ITextFont *pFontSel      = NULL
    ITextFont *FontDuplicate = NULL;
    
    // Get ITextFont version of non-duplicated font.
    if (FAILED(pSel->GetFont( &pFontSel))
        return;

    // Duplicate the font.
    pFontSel->GetValue(&pFontDuplicate);
    pFontSel->Release();
    
    if(!pFontDuplicate)
        return;

   // Changes here happen only to the underlying data structure, 
   // such as a CHARFORMAT, in the duplicate - NOT to the actual story text.

    BSTR bstrTemp = UnicodeBstrFromAnsi("Times New Roman");   // Font name
    
    pFontDuplicate->SetName(bstrTemp);
    SysFreeString(bstrTemp);
    
    pFontDuplicate->SetBold(tomTrue);                        // Bold
    pFontDuplicate->SetSize(10.5);                           // 10.5 point font.
    pFontDuplicate->SetAnimation(tomBlackMarchingAnts);

    // Apply the change to text as one change: one screen update, one undo. 
    // You can also apply the font object to different ranges before you free it.
    
    pSel->SetFont(pFontDuplicate);
    
    pFontDuplicate->Release();
    
}

Using The Text Object Model

Using Rich Edit Controls

Windows common controls demo (CppWindowsCommonControls)