Activating window

[F Dost]

does anyone know how make a window active when multiple windows are open. in an mdi applicatin under window menu item there is a list of all open files and the active one is checked, i want to know how that code works, so that when i click on my tree node that window should be activated, Thanks, F.Dost

[Lost User]

Yeah its pretty easy, use the SetActiveWindow (hwnd ) function.. You need to get the window handle for the window you want to activate though.. Do that by hwnd = FindWindow(NULL, "Put the window title here") SetActiveWindow (hwnd )

[Felix Cho]

If you are talking about the MDI "document windows", you need to send WM_MDI* messages to the "MDI client", the window that is usually in the dark gray colour.

[Masaaki Onishi]

Hello, the codegurus around the world.;) I often use this function from "HOW-TO VISUAL C++ 4.0" by Scott ? to change the active view on MDI application.

void CMainFrame::SwitchToView(CDocTemplate* pTemplate, CRuntimeClass* pViewClass)
{
CMDIChildWnd* pMDIActive = MDIGetActive();
CDocument* pDoc = pMDIActive->GetActiveDocument();
CView* pView;

POSITION pos = pDoc->GetFirstViewPosition();
while(pos != NULL)
{
	pView = pDoc->GetNextView(pos);
	if(pView->IsKindOf(pViewClass))
	{
		//the requested view has already been created; show it
		pView->GetParentFrame()->ActivateFrame();
		return;
	}
}

//The requested view hasn't been created yet
CMDIChildWnd\* pNewFrame = (CMDIChildWnd\*)
	pTemplate->CreateNewFrame(pDoc, NULL);

if(pNewFrame == NULL) return;

pTemplate->InitialUpdateFrame(pNewFrame, pDoc);

}

and call this function anywhere like this.

((CMainFrame\*)AfxGetMainWnd())->SwitchToView(theApp.m\_pAppTemplate,
		RUNTIME\_CLASS(CAppView));

Have a nice day! -Masaaki Onishi-