C / C++ / MFC

LPSTR GetErrorString(UINT uiStringId)
{
	int iRetVal=0;
	DWORD dwResSize=0;
	char temp[10];
	HRSRC hRes;

	//get the ID of the block
                DWORD nID = (uiStringId >> 4) + 1;

	//get the offset of the item within the block
	DWORD nitemID = uiStringId % 0x10;

	//get handle to the beginning of the block of 16 strings, where each string begins with its size
	hRes = FindResource(gl_hModule,MAKEINTRESOURCE(nID), RT_STRING); 

	
                //how to get the size of the string here, curretly giving the size of the block
               dwResSize=SizeofResource(gl_hModule,hRes);

    ....
...
..}