odbccp32.c

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/* $Id: odbccp32.c 54535 2011-11-29 14:55:58Z dgorbachev $
 *
 * PROJECT:         ReactOS ODBC Control Panel Applet
 * FILE:            dll/cpl/main/main.c
 * PURPOSE:         applet initialization
 * PROGRAMMER:      Johannes Anderwald
 */

#include "odbccp32.h"

HINSTANCE hApplet = NULL;
APPLET_PROC ODBCProc = NULL;
HMODULE hLibrary = NULL;


LONG
CALLBACK
CPlApplet(HWND hwndCpl,
          UINT uMsg,
          LPARAM lParam1,
          LPARAM lParam2)
{
    if (ODBCProc == NULL)
    {
        TCHAR szBuffer[MAX_PATH];

        if (ExpandEnvironmentStrings(_T("%systemroot%\\system32\\odbccp32.dll"),
                                     szBuffer,
                                     sizeof(szBuffer) / sizeof(TCHAR)) > 0)
        {
            hLibrary = LoadLibrary(szBuffer);
            if (hLibrary)
            {
                ODBCProc = (APPLET_PROC)GetProcAddress(hLibrary, "ODBCCPlApplet");
            }
        }
    }

    if (ODBCProc)
    {
        return ODBCProc(hwndCpl, uMsg, lParam1, lParam2);
    }
    else
    {
        if(hLibrary)
        {
            FreeLibrary(hLibrary);
        }

        TerminateProcess(GetCurrentProcess(), -1);
        return (LONG)-1;
    }
}


BOOL
WINAPI
DllMain(HINSTANCE hinstDLL,
        DWORD dwReason,
        LPVOID lpReserved)
{
    INITCOMMONCONTROLSEX InitControls;
    UNREFERENCED_PARAMETER(lpReserved);

    switch(dwReason)
    {
        case DLL_PROCESS_ATTACH:
        case DLL_THREAD_ATTACH:

            InitControls.dwSize = sizeof(INITCOMMONCONTROLSEX);
            InitControls.dwICC = ICC_LISTVIEW_CLASSES | ICC_UPDOWN_CLASS | ICC_BAR_CLASSES;
            InitCommonControlsEx(&InitControls);

            hApplet = hinstDLL;
            break;
  }

  return TRUE;
}