Tabbed MDI flicker

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   I was running the demo MDITabDemo (also occurs on other demo programs that support the tabbed MDI style) and noticed that eery time a tab for an unexposed window is clicked, there is a very brief flicker where an MDI child window shows itself in the "Restored" state just prior to maximizing and showing in the "Tabbed" state.
I also noticed that the Tabbed MDI seems to be implemented by piggybacking on top of regular MDI, such that the child windows can be "Restored" to what is basically regular MDI mode with the tab bar serving as a mechanism to front windows.  This is not the behavior of Tabbed MDI in Visual Studio.  Is it possible to eliminate this feature (and along with it eliminating both the MDI child menu additions to the main frame menu) and will doing so eliminate the flicker, or would I need to implement my own Tabbed MDI (basically doing so in SDI mode I imagine)?

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spiderM9 Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 21 October 2003 Status: Offline Points: 17	Post Options Post Reply Quote spiderM9 Report Post Thanks(0) Quote Reply Topic: Tabbed MDI flicker Posted: 21 October 2003 at 5:34pm
	I was running the demo MDITabDemo (also occurs on other demo programs that support the tabbed MDI style) and noticed that eery time a tab for an unexposed window is clicked, there is a very brief flicker where an MDI child window shows itself in the "Restored" state just prior to maximizing and showing in the "Tabbed" state. I also noticed that the Tabbed MDI seems to be implemented by piggybacking on top of regular MDI, such that the child windows can be "Restored" to what is basically regular MDI mode with the tab bar serving as a mechanism to front windows. This is not the behavior of Tabbed MDI in Visual Studio. Is it possible to eliminate this feature (and along with it eliminating both the MDI child menu additions to the main frame menu) and will doing so eliminate the flicker, or would I need to implement my own Tabbed MDI (basically doing so in SDI mode I imagine)?

kstowell Members Profile Send Private Message Find Members Posts Add to Buddy List Admin Group Joined: 25 January 2003 Location: MIchigan, USA Status: Offline Points: 496	Post Options Post Reply Quote kstowell Report Post Thanks(0) Quote Reply Posted: 28 October 2003 at 4:40pm
	Hello, Add the following code to your CChildFrame class to eliminate the flicker you see when switching MDI tabs: BOOL CChildFrame::PreCreateWindow(CREATESTRUCT& cs) { // make sure view is maximum size to eliminate // flicker when switching tabs. cs.x = cs.y = 0; cs.cx = cs.cy = 32767; // TODO: Modify the Window class or styles here by modifying // the CREATESTRUCT cs if( !CXTMDIChildWnd::PreCreateWindow(cs) ) return FALSE; cs.style \|= WS_CLIPCHILDREN; cs.style = WS_CHILD \| WS_OVERLAPPED \| WS_CAPTION \| WS_SYSMENU \| FWS_ADDTOTITLE \| WS_THICKFRAME \| WS_MINIMIZEBOX \| WS_MAXIMIZEBOX; return TRUE; } void CChildFrame::ActivateFrame(int nCmdShow) { // first window should be maximized if (GetParent()->GetWindow(GW_CHILD) == this) { nCmdShow = SW_SHOWMAXIMIZED; } CXTMDIChildWnd::ActivateFrame(nCmdShow); } Let me know if this helps. Kind regards, Codejock Support Edited by Administrator

tymberwyld Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 30 August 2005 Status: Offline Points: 1	Post Options Post Reply Quote tymberwyld Report Post Thanks(0) Quote Reply Posted: 30 August 2005 at 9:14am
	Hi, can anyone convert this to C#? I'm not familiar with the C++ Forms structure and so it's kind of difficult to see what's going on here. I understand the CreateParams structure, but the ActiveFrame() method is throwing me. Thanks for any help!

g_j_a_i_n Members Profile Send Private Message Find Members Posts Add to Buddy List Groupie Joined: 27 August 2005 Status: Offline Points: 93	Post Options Post Reply Quote g_j_a_i_n Report Post Thanks(0) Quote Reply Posted: 30 March 2006 at 11:25pm
	Thanks support. That code really helped. If any one of you wants to hide the maximize & minimize buttons, you can use the following code CXTPCommandBar* pMenuBar = pCommandBars->SetMenu("Menu Bar", IDR_MAINFRAME); pMenuBar->SetFlags(xtpFlagHideMinimizeBox \| xtpFlagHideMaximizeBox);