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Win32 GUI flickers when resized

I have a Win32 GUI program with a tab control, each tab has a list control. When the window is resized, massive flickering occurs. I have tried the following things:

  • Processing WM_ERASEBKGND in the main wndproc and returning TRUE. There is no effect.
  • Filtering all WM_ERASEBKGND messages in the event loop. There is no effect.
  • Setting the WM_CLIPCHILDREN style in the main window. Now, when the window changes, the list control is simply deleted on a white background and not redrawn.
  • Using DefWindowPos instead of MoveWindow. There is no effect.
  • Passing FALSE for bRepaint in MoveWindow. Same effect as setting WS_CLIPCHILDREN (see above).

Here's the RegisterClassEx code:

memset(&wcex, 0, sizeof(WNDCLASSEX));
wcex.cbSize = sizeof(WNDCLASSEX);
wcex.style = 0;
wcex.lpfnWndProc = PhMainWndProc;
wcex.cbClsExtra = 0;
wcex.cbWndExtra = 0;
wcex.hInstance = PhInstanceHandle;
wcex.hIcon = LoadIcon(PhInstanceHandle, MAKEINTRESOURCE(IDI_PROCESSHACKER));
wcex.hCursor = LoadCursor(NULL, IDC_ARROW);
//wcex.hbrBackground = (HBRUSH)(COLOR_WINDOW + 1);
wcex.lpszMenuName = MAKEINTRESOURCE(IDR_MAINWND);
wcex.lpszClassName = PhWindowClassName;
wcex.hIconSm = (HICON)LoadImage(PhInstanceHandle, MAKEINTRESOURCE(IDI_PROCESSHACKER), IMAGE_ICON, 16, 16, 0);

WM_SIZE handler:

RECT rect;

// Resize the tab control.

GetClientRect(PhMainWndHandle, &rect);
MoveWindow(TabControlHandle, rect.left, rect.top,
    rect.right - rect.left, rect.bottom - rect.top, TRUE);

// Resize the list view.

TabCtrl_AdjustRect(TabControlHandle, FALSE, &rect);

MoveWindow(ListViewHandle, rect.left, rect.top,
    rect.right - rect.left, rect.bottom - rect.top, TRUE);

Styles:

  • Main window: WS_OVERLAPPEDWINDOW
  • : WS_CHILD ( WS_VISIBLE)
  • : WS_CHILD | WS_BORDER | LVS_REPORT ( WS_VISIBLE)
+5
4

, Z-ordering- BringWindowToTop .

+4

Windows , , , . . BeginDeferWindowPos.

, WM_SETREDRAW. -, , , , , RedrawWindow, . , , " " .

+2

ListView , Windows ( ), , . http://www.codeproject.com/KB/list/listviewxp.aspx

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