OPENFILENAME的问题

北京的雾霾天 2009-12-21 12:20:15

我使用OPENFILENAME及GetOpenFileName打开一个打开文件的对话框，多数情况正常，可是有的时候弹出的对话框没有左边的那几个按钮，就是“我最近的文档、桌面、我的文档、我的电脑、网上邻居”这几个按钮，我的代码如下，各位看看是什么原因：



UINT_PTR CALLBACK OFNHookProc(HWND hdlg,UINT uiMsg,WPARAM wParam,LPARAM lParam)

{

	hdlg=GetParent(hdlg);

	if (uiMsg==WM_INITDIALOG)

	{

		RECT rect;

		GetWindowRect(hdlg, &rect);

		HMONITOR hMonitor=MonitorFromWindow(hdlg, MONITOR_DEFAULTTONEAREST);



		MONITORINFOEX info;

		info.cbSize=sizeof(info);

		if (!GetMonitorInfo(hMonitor, &info))

		{

			return 0;

		}

		int x = info.rcWork.left + ((info.rcWork.right-info.rcWork.left)-(rect.right-rect.left)) / 2;

		int y = info.rcWork.top + ((info.rcWork.bottom-info.rcWork.top)-(rect.bottom-rect.top)) / 3;

		int flag=SWP_NOACTIVATE|SWP_NOZORDER|SWP_NOSIZE;

		return SetWindowPos(hdlg, NULL, x, y, 0, 0, flag);

	}

	return 0;

}



void selectIcon(HWND dlg)

{

	OPENFILENAME ofn;

	ofn.hInstance=hInst;

	ofn.lStructSize = sizeof(ofn);

	ofn.hwndOwner = dlg;

	ofn.lpstrFile = szIcoFile;

	ofn.nMaxFile = MAX_PATH;

	ofn.lpstrFilter = _T("Ico文件\0*.ico\0所有文件\0*.*\0\0");

	ofn.nFilterIndex = 0;

	ofn.lpstrFileTitle = NULL;

	ofn.nMaxFileTitle = 0;

	ofn.lpstrInitialDir = NULL;

	ofn.lpstrTitle=NULL;

	ofn.lpstrCustomFilter=NULL;

	ofn.lpstrDefExt=NULL;

	ofn.lpTemplateName=NULL;

	ofn.pvReserved=NULL;

	ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_EXPLORER | OFN_ENABLEHOOK;

	ofn.lpfnHook=OFNHookProc;



	if (!GetOpenFileName(&ofn))

	{

		return;

	}

}