Leaked source code of windows server 2003
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/*==========================================================================
*
* Copyright (C) 1999 Microsoft Corporation. All Rights Reserved.
*
* File: dverror.cpp
* Content: Error string handling
*
* History:
* Date By Reason
* ==== == ======
* 01/21/2000 pnewson Created
* 04/19/2000 pnewson Error handling cleanup
*
***************************************************************************/
#include "dxvutilspch.h"
#undef DPF_SUBCOMP
#define DPF_SUBCOMP DN_SUBCOMP_VOICE
#define MESSAGE_STRING_MAX_LEN 256
#define MAX_ERROR_CODE_STRING_LEN 8
static const TCHAR* g_tszDefaultMessage = _T("DirectPlay Voice has encountered an error\r\n(The error code was 0x%x)");
static const TCHAR* g_tszDefaultMessageCaption = _T("Error");
#undef DPF_MODNAME
#define DPF_MODNAME "DV_DisplayDefaultErrorBox"
void DV_DisplayDefaultErrorBox(HRESULT hr, HWND hwndParent)
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "DV_DisplayDefaultErrorBox called");
TCHAR tszMsgFmt[MESSAGE_STRING_MAX_LEN];
if (_tcslen(g_tszDefaultMessage) + MAX_ERROR_CODE_STRING_LEN + 1 < MESSAGE_STRING_MAX_LEN)
{
_stprintf(tszMsgFmt, g_tszDefaultMessage, hr);
}
else
{
// Programmer mess up, DNASSERT if we're in debug, otherwise just
// copy what we can of the default message over.
DNASSERT(FALSE);
_tcsncpy(tszMsgFmt, g_tszDefaultMessage, MESSAGE_STRING_MAX_LEN - 1);
}
MessageBox(hwndParent, tszMsgFmt, g_tszDefaultMessageCaption, MB_OK|MB_ICONERROR);
return;
}
#undef DPF_MODNAME
#define DPF_MODNAME "DV_DisplayErrorBox"
void DV_DisplayErrorBox(HRESULT hr, HWND hwndParent, UINT idsErrorMessage)
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "DV_DisplayErrorBox called");
TCHAR tszMsg[MESSAGE_STRING_MAX_LEN];
TCHAR tszMsgFmt[MESSAGE_STRING_MAX_LEN];
TCHAR tszCaption[MESSAGE_STRING_MAX_LEN];
#if !defined(DBG) || !defined( DIRECTX_REDIST )
HINSTANCE hDPVoiceDll = LoadLibrary(_T("dpvoice.dll"));
#else
// For redist debug builds we append a 'd' to the name to allow both debug and retail to be installed on the system
HINSTANCE hDPVoiceDll = LoadLibrary(_T("dpvoiced.dll"));
#endif // !defined(DBG) || !defined( DIRECTX_REDIST )
if (hDPVoiceDll == NULL)
{
// Very weird! go with a default message.
DPFX(DPFPREP, DVF_ERRORLEVEL, "LoadLibrary(dpvoice.dll) failed - using default hardcoded message");
DV_DisplayDefaultErrorBox(hr, hwndParent);
return;
}
if (!LoadString(hDPVoiceDll, IDS_ERROR_CAPTION, tszCaption, MESSAGE_STRING_MAX_LEN))
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "LoadString failed - using default hardcoded message");
DV_DisplayDefaultErrorBox(hr, hwndParent);
return;
}
if (idsErrorMessage == 0)
{
if (!LoadString(hDPVoiceDll, IDS_ERROR_MSG, tszMsg, MESSAGE_STRING_MAX_LEN))
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "LoadString failed - using default hardcoded message");
DV_DisplayDefaultErrorBox(hr, hwndParent);
return;
}
if (_tcslen(tszMsg) + MAX_ERROR_CODE_STRING_LEN + 1 < MESSAGE_STRING_MAX_LEN)
{
_stprintf(tszMsgFmt, tszMsg, hr);
}
else
{
// Programmer mess up, DNASSERT if we're in debug, otherwise just
// copy what we can of the default message over.
DNASSERT(FALSE);
_tcsncpy(tszMsgFmt, tszMsg, MESSAGE_STRING_MAX_LEN - 1);
}
}
else
{
//passed a valid error string identifier. Try and pull string in
if (!LoadString(hDPVoiceDll, idsErrorMessage, tszMsgFmt, MESSAGE_STRING_MAX_LEN))
{
DPFX(DPFPREP, DVF_ERRORLEVEL, "LoadString failed - using default hardcoded message");
DV_DisplayDefaultErrorBox(hr, hwndParent);
return;
}
}
if (!IsWindow(hwndParent))
{
hwndParent = NULL;
}
MessageBox(hwndParent, tszMsgFmt, tszCaption, MB_OK|MB_ICONERROR);
return;
}