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POParameters File to Store All Variables
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  1. POParameters File to Store All Variables
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    copied!<p><strong>Background:</strong> So I've created an application that is basically a large preference dialog where the user can configure a number of pages, each with a bunch of different settings. These settings are in the form of dropdowns and text boxes. I want to store all of the variables into one massive "Parameters.h" file so that I can access them from anywhere in my application. Each sub-page has it's own source and header file.</p> <p>I'm having trouble with the pointers though. I'm not sure how to reference the Parameters class. Basically, my application has two main components: a main dialog and a bunch of sub, child pages. The main dialog is where the sub-pages are shown and hidden, based on what page the user chooses in a listbox on the left of the main dialog.</p> <p>I'm just working with one sub-page right now, and have the following, but when I debug, I'm getting &lt;BadPtr&gt; all over the place. I have greatly simplified the code, but it should be enough to figure out what I'm doing wrong.</p> <p><strong>Question:</strong> So how do I point to this Parameters class in each sub-dialog so that I can store and use all of these variables?</p> <hr> <p><strong>SAPrefsDialog.cpp: Main dialog that houses the sub-pages</strong></p> <pre><code>BOOL CSAPrefsDialog::OnInitDialog() { CDialog::OnInitDialog(); FSC_Main fscMain; fscMain.SetParametersPointer(&amp;m_pParams); // [ ... ] } </code></pre> <hr> <p><strong>SAPrefsDialog.h: Main dialog header file</strong></p> <pre><code>#include "Parameters.h" public: CSAPrefsDialog(CWnd* pParent = NULL); // standard constructor ~CSAPrefsDialog(); Parameters m_pParams; </code></pre> <hr> <p><strong>FSC_Main.h: Sub-page header file</strong></p> <pre><code>#include "Parameters.h" class FSC_Main : public CSAPrefsSubDlg { // Construction public: FSC_Main(CWnd* pParent = NULL); // standard constructor // Dialog Data //{{AFX_DATA(FSC_Main) enum { IDD = IDD_FS_CONFIG_MAIN }; //}}AFX_DATA public: void SetParametersPointer(Parameters* pParameters) { m_Params = pParameters; } private: Parameters *m_Params; }; </code></pre> <hr> <p><strong>Parameters.h</strong></p> <pre><code>#include "stdafx.h" #include "prefs.h" #pragma once class Parameters { public: Parameters(); // standard constructor public: ~Parameters(void); protected: virtual void DoDataExchange(CDataExchange* pDX); // DDX/DDV support public: //***************************************************************************** // // FSC_Main.cpp Variables // //***************************************************************************** CString m_strVehiclesMainNumVehicles; CString m_strVehiclesMainMaxSensorCount; CString m_strVehiclesMainTaskProcessingInterval; CString m_strVehiclesMain // [ ... ] </code></pre> <hr> <p><strong>Parameters.cpp</strong></p> <pre><code>#include "stdafx.h" #include "prefs.h" #include "pages.h" #include "Parameters.h" //***************************************************************************** // // Parameters::Parameters // //***************************************************************************** Parameters::Parameters(): m_strVehiclesMainNumVehicles("") , m_strVehiclesMainMaxSensorCount("") , m_strVehiclesMainTaskProcessingInterval("") // [ ... ] { } </code></pre>
 

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