110 lines
3.1 KiB
C++
110 lines
3.1 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1999-2000 Microsoft Corporation
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//
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// Module Name:
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// GlobalFuncs.cpp
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//
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// Description:
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// Contains the definitions of a few unrelated global functions
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//
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// Maintained By:
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// Vij Vasu (Vvasu) 06-SEP-2000
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//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// Include Files
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//////////////////////////////////////////////////////////////////////////////
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// The precompiled header.
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#include "pch.h"
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//////////////////////////////////////////////////////////////////////////////
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//++
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//
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// DwLoadString()
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//
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// Description:
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// Allocate memory for and load a string from the string table.
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//
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// Arguments:
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// uiStringIdIn
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// Id of the string to look up
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//
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// rsszDestOut
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// Reference to the smart pointer to the loaded string.
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//
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// Return Value:
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// S_OK
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// If the call succeeded
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//
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// Other Win32 error codes
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// If the call failed.
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//
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// Remarks:
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// This function cannot load a zero length string.
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//--
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//////////////////////////////////////////////////////////////////////////////
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DWORD
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DwLoadString(
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UINT nStringIdIn
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, SmartSz & rsszDestOut
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)
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{
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TraceFunc( "" );
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DWORD dwError = ERROR_SUCCESS;
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UINT uiCurrentSize = 0;
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SmartSz sszCurrentString;
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UINT uiReturnedStringLen = 0;
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do
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{
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// Grow the current string by an arbitrary amount.
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uiCurrentSize += 256;
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sszCurrentString.Assign( new WCHAR[ uiCurrentSize ] );
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if ( sszCurrentString.FIsEmpty() )
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{
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dwError = TW32( ERROR_NOT_ENOUGH_MEMORY );
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TraceFlow2( "Error %#x occurred trying allocate memory for string (string id is %d).", dwError, nStringIdIn );
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LogMsg( "Error %#x occurred trying allocate memory for string (string id is %d).", dwError, nStringIdIn );
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break;
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} // if: the memory allocation has failed
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uiReturnedStringLen = ::LoadString(
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g_hInstance
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, nStringIdIn
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, sszCurrentString.PMem()
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, uiCurrentSize
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);
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if ( uiReturnedStringLen == 0 )
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{
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dwError = TW32( GetLastError() );
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TraceFlow2( "Error %#x occurred trying load string (string id is %d).", dwError, nStringIdIn );
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LogMsg( "Error %#x occurred trying load string (string id is %d).", dwError, nStringIdIn );
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break;
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} // if: LoadString() had an error
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++uiReturnedStringLen;
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}
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while( uiCurrentSize <= uiReturnedStringLen );
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if ( dwError == ERROR_SUCCESS )
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{
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rsszDestOut = sszCurrentString;
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} // if: there were no errors in this function
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else
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{
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rsszDestOut.PRelease();
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} // else: something went wrong
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RETURN( dwError );
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} //*** DwLoadString()
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