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Method of getting text on a windows form ( unmanaged C++ project )

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A:

If you've created a label using resources, use its resource ID and

HWND *pWnd = ::GetDlgItem(mainDialogHwnd, IDC_YOUR_RESOURCE_ID);
::SetWindowText(pWnd, "Your Updated Text");

There are MFC equivalents for those too, should get you in the right direction. Note that posting message loop means lots and lots of information... might not want to do that. Check Spy++ if that's still available and in use today to see how many messages an app gets!

DulabCMS 2010-05-14 23:03:44

I guess if you overwrite the message every time it doesn't really matter, just as long as you aren't trying to write it all out and keep it all in a single window object... would consume a lot of memory very quickly

DulabCMS 2010-05-14 23:17:33

I noticed the boilerplate code doesn't store the handle for the main window into a global variable. Its only in scope for the creation of the window then gone. I figure I would need to know the handle globaly to make use of your example code right?

Donovan 2010-05-14 23:39:11

My last experience with VC++ was with VS 6, so I don't know what exactly the boilerplate code looks like unfortunately... but assuming it's a standard MFC project it probably creates a single, global CWinApp, and creates a CWnd somewhere... the function calls I used were old-style C WinAPI (which MFC wraps), you can get a pointer to an HWND by calling CWnd::GetSafeHwnd(), or you can find the equivalent MFC function for GetDlgItem and SetWindowText, they're probably similarly named, and wrapped in nice MFC classes.

DulabCMS 2010-05-15 06:09:46

For my code, you would do something like:HWND *pMainWnd = mainApp.m_pMainWnd->GetSafeHwnd();HWND *pCntrlWnd = ::GetDlgItem(pMainWnd, IDC_YOUR_RESOURCE_ID);//use pCntrlWndAlso you should be able to "bring in" a control into your main window class... from the resource editor right click the control and see if you can 'attach to class' or something, that should create a member variable of the class it's contained in, for instance a CEdit member variable for an edit control.

DulabCMS 2010-05-15 06:20:26

I think I see where I might be getting hung up. I'm using VC++ 2008 express. In the express edition you don't get to do resource editing. I would have to create the label by hand.

Donovan 2010-05-17 15:38:40

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Method of getting text on a windows form ( unmanaged C++ project )

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