The Code Project - Find in CWebBrowser Control

Home >> Miscellaneous Controls >> Unedited Reader Contributions

Find in CWebBrowser Control
By Jeremy Davis

How to display the "Find" window in a CWebBrowser control.

	Beginner
	VC 4-6, Win95-98, NT4, W2K, MFC, COM
	Posted 29 Jun 2000
	Updated 11 Aug 2000
	Articles by this author
	Send to a friend
	Printer friendly version

[This is an unedited reader contribution]

[Modify this article]

[Delete this article]

Latest Articles

Logon

Message Boards

Submit an Article

Broken links? Email us!

11 users have rated this article. result:

4.64 out of 5.

An application that I had been assigned to write, required me to display reports that could possibly be over 10,000 lines in a CWebBrowser control. These 10,000 lines sometimes took a matter of hours to produce, so it was decided that it would be nice to display the report as it was generated, line by line. Being reasonably new to COM, I posted the question "How?" in the CodeProject message area. Along came Colin Davies, with a bit a code that can be seen here. In a 10,000 line report, it can take the user a lllloooonnnngggg time to find what they are looking for!

IE5 has the Edit - Find (on this page)... CTRL+F option that searches the current page. So I investigated implementing this in my CWebBrowser control, and found it was not as easy as it had first sounded to a COM newbie. Anyway after searching some rather confusing MSDN articles I hacked some code to produce this code slice, which can also be modified to display the View Source and Options windows aswell.

#include <initguid.h> DEFINE_GUID(CGID_IWebBrowser,0xED016940L,0xBD5B,0x11cf,0xBA, 0x4E,0x00,0xC0,0x4F,0xD7,0x08,0x16); DWORD nCmdID = 1; //1 : FIND, 2: VIEWSOURCE, 3 : OPTIONS LPDISPATCH lpDispatch = NULL; LPOLECOMMANDTARGET lpOleCommandTarget = NULL; lpDispatch = m_htmlview.GetDocument(); ASSERT(lpDispatch); // Get an IDispatch pointer for the IOleCommandTarget interface. lpDispatch->QueryInterface(IID_IOleCommandTarget, (void**)&lpOleCommandTarget;); ASSERT(lpOleCommandTarget); lpDispatch->Release(); // Invoke the given command id for the WebBrowser control lpOleCommandTarget->Exec(&CGID;_IWebBrowser, nCmdID, 0, NULL, NULL); // Release the command target lpOleCommandTarget->Release();

"m_htmlview" is the member variable for the CWebBrowser2 control.

Hint: For improved responsiveness, use Internet Explorer 4 (or above) with Javascript enabled, choose 'Dynamic' from the View dropdown and hit 'Refresh'