reactos/dll/cpl/desk/desk.c

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/* $Id$
*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS Display Control Panel
* FILE: lib/cpl/desk/desk.c
* PURPOSE: ReactOS Display Control Panel
*
* PROGRAMMERS: Trevor McCort (lycan359@gmail.com)
*/
#include "desk.h"
#include "preview.h"
#define NUM_APPLETS (1)
static LONG APIENTRY DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK BackgroundPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK ScreenSaverPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK AppearancePageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
INT_PTR CALLBACK SettingsPageProc(HWND hwndDlg, UINT uMsg, WPARAM wParam, LPARAM lParam);
UINT CALLBACK SettingsPageCallbackProc(HWND hwnd, UINT uMsg, LPPROPSHEETPAGE ppsp);
HINSTANCE hApplet = 0;
HWND hCPLWindow;
/* Applets */
APPLET Applets[NUM_APPLETS] =
{
{
IDC_DESK_ICON,
IDS_CPLNAME,
IDS_CPLDESCRIPTION,
DisplayApplet
}
};
HMENU
LoadPopupMenu(IN HINSTANCE hInstance,
IN LPCTSTR lpMenuName)
{
HMENU hMenu, hSubMenu = NULL;
hMenu = LoadMenu(hInstance,
lpMenuName);
if (hMenu != NULL)
{
hSubMenu = GetSubMenu(hMenu,
0);
if (hSubMenu != NULL &&
!RemoveMenu(hMenu,
0,
MF_BYPOSITION))
{
hSubMenu = NULL;
}
DestroyMenu(hMenu);
}
return hSubMenu;
}
static BOOL CALLBACK
PropSheetAddPage(HPROPSHEETPAGE hpage, LPARAM lParam)
{
PROPSHEETHEADER *ppsh = (PROPSHEETHEADER *)lParam;
if (ppsh != NULL && ppsh->nPages < MAX_DESK_PAGES)
{
ppsh->phpage[ppsh->nPages++] = hpage;
return TRUE;
}
return FALSE;
}
static BOOL
InitPropSheetPage(PROPSHEETHEADER *ppsh, WORD idDlg, DLGPROC DlgProc, LPFNPSPCALLBACK pfnCallback)
{
HPROPSHEETPAGE hPage;
PROPSHEETPAGE psp;
if (ppsh->nPages < MAX_DESK_PAGES)
{
ZeroMemory(&psp, sizeof(psp));
psp.dwSize = sizeof(psp);
psp.dwFlags = PSP_DEFAULT;
if (pfnCallback != NULL)
psp.dwFlags |= PSP_USECALLBACK;
psp.hInstance = hApplet;
psp.pszTemplate = MAKEINTRESOURCE(idDlg);
psp.pfnDlgProc = DlgProc;
psp.pfnCallback = pfnCallback;
hPage = CreatePropertySheetPage(&psp);
if (hPage != NULL)
{
return PropSheetAddPage(hPage, (LPARAM)ppsh);
}
}
return FALSE;
}
static const struct
{
WORD idDlg;
DLGPROC DlgProc;
LPFNPSPCALLBACK Callback;
} PropPages[] =
{
{ IDD_BACKGROUND, BackgroundPageProc, NULL },
{ IDD_SCREENSAVER, ScreenSaverPageProc, NULL },
{ IDD_APPEARANCE, AppearancePageProc, NULL },
{ IDD_SETTINGS, SettingsPageProc, SettingsPageCallbackProc },
};
/* Display Applet */
static LONG APIENTRY
DisplayApplet(HWND hwnd, UINT uMsg, LPARAM wParam, LPARAM lParam)
{
HPROPSHEETPAGE hpsp[MAX_DESK_PAGES];
PROPSHEETHEADER psh;
HPSXA hpsxa;
TCHAR Caption[1024];
LONG ret;
UINT i;
UNREFERENCED_PARAMETER(lParam);
UNREFERENCED_PARAMETER(wParam);
UNREFERENCED_PARAMETER(uMsg);
UNREFERENCED_PARAMETER(hwnd);
LoadString(hApplet, IDS_CPLNAME, Caption, sizeof(Caption) / sizeof(TCHAR));
ZeroMemory(&psh, sizeof(PROPSHEETHEADER));
psh.dwSize = sizeof(PROPSHEETHEADER);
psh.dwFlags = PSH_USECALLBACK | PSH_PROPTITLE;
psh.hwndParent = hCPLWindow;
psh.hInstance = hApplet;
psh.hIcon = LoadIcon(hApplet, MAKEINTRESOURCE(IDC_DESK_ICON));
psh.pszCaption = Caption;
psh.nPages = 0;
psh.nStartPage = 0;
psh.phpage = hpsp;
/* Allow shell extensions to replace the background page */
hpsxa = SHCreatePropSheetExtArray(HKEY_LOCAL_MACHINE, REGSTR_PATH_CONTROLSFOLDER TEXT("\\Desk"), MAX_DESK_PAGES - psh.nPages);
for (i = 0; i != sizeof(PropPages) / sizeof(PropPages[0]); i++)
{
/* Override the background page if requested by a shell extension */
if (PropPages[i].idDlg == IDD_BACKGROUND && hpsxa != NULL &&
SHReplaceFromPropSheetExtArray(hpsxa, CPLPAGE_DISPLAY_BACKGROUND, PropSheetAddPage, (LPARAM)&psh) != 0)
{
/* The shell extension added one or more pages to replace the background page.
Don't create the built-in page anymore! */
continue;
}
InitPropSheetPage(&psh, PropPages[i].idDlg, PropPages[i].DlgProc, PropPages[i].Callback);
}
/* NOTE: Don't call SHAddFromPropSheetExtArray here because this applet only allows
replacing the background page but not extending the applet by more pages */
ret = (LONG)(PropertySheet(&psh) != -1);
if (hpsxa != NULL)
SHDestroyPropSheetExtArray(hpsxa);
return ret;
}
/* Control Panel Callback */
LONG CALLBACK
CPlApplet(HWND hwndCPl, UINT uMsg, LPARAM lParam1, LPARAM lParam2)
{
int i = (int)lParam1;
switch (uMsg)
{
case CPL_INIT:
return TRUE;
case CPL_GETCOUNT:
return NUM_APPLETS;
case CPL_INQUIRE:
{
CPLINFO *CPlInfo = (CPLINFO*)lParam2;
CPlInfo->lData = 0;
CPlInfo->idIcon = Applets[i].idIcon;
CPlInfo->idName = Applets[i].idName;
CPlInfo->idInfo = Applets[i].idDescription;
}
break;
case CPL_DBLCLK:
hCPLWindow = hwndCPl;
Applets[i].AppletProc(hwndCPl, uMsg, lParam1, lParam2);
break;
}
return FALSE;
}
BOOL WINAPI
DllMain(HINSTANCE hInstDLL, DWORD dwReason, LPVOID lpvReserved)
{
UNREFERENCED_PARAMETER(lpvReserved);
switch (dwReason)
{
case DLL_PROCESS_ATTACH:
CoInitializeEx(NULL, COINIT_APARTMENTTHREADED);
RegisterPreviewControl(hInstDLL);
// case DLL_THREAD_ATTACH:
hApplet = hInstDLL;
break;
case DLL_PROCESS_DETACH:
UnregisterPreviewControl(hInstDLL);
CoUninitialize();
break;
}
return TRUE;
}