Implementing the “Font” feature like the one in INTERNET EXPLORER

CodeGuru content and product recommendations are editorially independent. We may make money when you click on links to our partners. Learn More.

.

A sample code to change the fonts in your web browser using webbrowser control.

void CMyBrowser::SetFont(int nFontSize)
{	m_pDisp = NULL; 			// IDISPATCH pointer
	LPOLECOMMANDTARGET pCmdTarg = NULL;

	m_pDisp = m_WebBrowser2.GetDocument(); 	// get the idispatch pointer from webbrowser control
	ASSERT(m_pDisp); 			//check for validity

	m_pDisp->QueryInterface(IID_IOleCommandTarget, (LPVOID*)&pCmdTarg); //query for IID_IOleCommandTarget interface 
	ASSERT(pCmdTarg); 			// check for validity

	VARIANT vaFontSize;   			// input argumentsVariantInit(&vaFontSize);
	V_VT(&vaFontSize) = VT_I4;
	V_I4(&vaFontSize) = nFontSize;  	//size of the font you want
	VARIANT vaFontOutput;

	pCmdTarg->Exec(NULL,			// execute just change the font
		       OLECMDID_ZOOM,
		       OLECMDEXECOPT_PROMPTUSER,
		       &vaFontSize,
		       &vaFontOutput);

	VariantClear(&vaFontSize); 		//clear the variant variable before freeing its memory

	if (pCmdTarg)   pCmdTarg->Release(); 	// release document's command target
	if (m_pDisp)   m_pDisp->Release();    	// release document's dispatch interface
}

Updated on May 18 1998

More by Author

Get the Free Newsletter!

Subscribe to Developer Insider for top news, trends & analysis

Must Read