怎么样才可以使用GetSaveFileName()弹出来就居中显示？

[hslinux]

处理了UINT CALLBACK OFNHookProc(
HWND hdlg, // handle to child dialog window
UINT uiMsg, // message identifier
WPARAM wParam, // message parameter
LPARAM lParam // message parameter
)函数；

UINT CALLBACK OFNHookProc(
HWND hdlg, // handle to child dialog window
UINT uiMsg, // message identifier
WPARAM wParam, // message parameter
LPARAM lParam // message parameter
)
{
if ( uiMsg == WM_SHOWWINDOW || uiMsg == WM_INITDIALOG)

{
CWnd *pWnd = CWnd::FromHandle(hdlg);
pWnd->CenterWindow();
}
return 0;
}

这样子搞都没办法让他居中显示。

是这样子调用的：

TCHAR szFilename[MAX_PATH] = TEXT("");
BOOL bResult = FALSE;
OPENFILENAME ofn = {0};

ofn.lStructSize = sizeof (OPENFILENAME);
ofn.lpstrFilter = TEXT("Support Files(*.txt)\0*.txt\0\0");
ofn.lpstrFile = szFilename;
ofn.nMaxFile = MAX_PATH;
ofn.Flags = OFN_EXPLORER |
OFN_ENABLEHOOK |
OFN_HIDEREADONLY |
OFN_NOCHANGEDIR |
OFN_PATHMUSTEXIST|
OFN_OVERWRITEPROMPT;
ofn.lpfnHook = OFNHookProc;

bResult = ::GetSaveFileName (&ofn);

[mynamelj]

ofn.hwndOwner = GetSafeHwnd(); // 设置一个业主窗口，也就是父窗口。