84 lines
2.7 KiB
C++
84 lines
2.7 KiB
C++
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//+---------------------------------------------------------------------------
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//
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// Microsoft Windows
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// Copyright (C) Microsoft Corporation, 1992 - 1994.
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//
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// File: cproppg.cxx
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//
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// Contents:
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//
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// Classes: CHlprPropPage
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//
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// Functions: DialogProc
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//
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// History: 4-12-1994 stevebl original dialog box helpers Created
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// 4-29-1998 stevebl Modified from dialog box helpers
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//
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//----------------------------------------------------------------------------
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#include "main.h"
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#include "cproppg.h"
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HPROPSHEETPAGE CHlprPropPage::CreatePropertySheetPage(LPPROPSHEETPAGE lppsp)
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{
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lppsp->pfnDlgProc = HlprPropPageDialogProc;
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lppsp->lParam = (LPARAM)(CHlprPropPage *) this;
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return ::CreatePropertySheetPage(lppsp);
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}
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//+---------------------------------------------------------------------------
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//
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// Function: DialogProc
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//
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// Synopsis: Common DialogProc used by all CHlprPropPage class objects.
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//
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// Arguments: [hwndDlg] - handle of dialog box
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// [uMsg] - message
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// [wParam] - first message parameter
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// [lParam] - second message parameter
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//
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// Returns: response from the CHlprPropPage::DialogProc method
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//
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// History: 4-12-94 stevebl Created
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//
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// Notes: This procedure is the DialogProc registered for all dialogs
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// created with the CHlprPropPage class. It uses the parameter
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// passed with the WM_INITDIALOG message to identify the dialog
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// classes' "this" pointer which it then stores in the window
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// structure's GWL_USERDATA field. All subsequent messages
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// can then be forwarded on to the correct dialog class's
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// DialogProc method by using the pointer stored in the
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// GWL_USERDATA field.
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//
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//----------------------------------------------------------------------------
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INT_PTR CALLBACK HlprPropPageDialogProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam)
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{
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CHlprPropPage * pdlg;
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switch (uMsg)
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{
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case WM_INITDIALOG:
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// This message is how we identify the dialog object.
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// get a pointer to the window class object
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pdlg = (CHlprPropPage *) ((PROPSHEETPAGE *)lParam)->lParam;
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// set its USERDATA word to point to the class object
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SetWindowLongPtr(hwndDlg, GWLP_USERDATA, (LONG_PTR) pdlg);
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break;
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default:
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// get a pointer to the window class object
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pdlg = (CHlprPropPage *) GetWindowLongPtr(hwndDlg, GWLP_USERDATA);
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break;
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}
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// and call its message proc method
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if (pdlg != (CHlprPropPage *) 0)
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{
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return(pdlg->DialogProc(hwndDlg, uMsg, wParam, lParam));
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}
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else
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{
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return(FALSE);
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}
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}
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