www.pudn.com > Winmobile.zip > FontList.cpp

// FontList.cpp : Win32 Font enumeration helper functions. 
// 
// Code from _Programming the .NET Compact Framework with C#_ 
// and _Programming the .NET Compact Framework with VB_ 
// (c) Copyright 2002-2003 Paul Yao and David Durant.  
// All rights reserved. 
 
#include "stdafx.h" 
#include "fontlist.h" 
 
BOOL APIENTRY  
DllMain( HANDLE hModule,  
         DWORD  ul_reason_for_call,  
         LPVOID lpReserved) 
{ 
    return TRUE; 
} 
extern "C" 
{ 
 
typedef struct __FACENAME 
{ 
   WCHAR FaceName[LF_FACESIZE]; 
   struct __FACENAME * pNext; 
} FACENAME, *LPFACENAME; 
 
typedef struct __HEADER 
{ 
   int signature; 
   int count; 
   struct __FACENAME * pFirst; 
   struct __FACENAME * pLast; 
} HEADER, *LPHEADER; 
 
 
#define HEADER_SIGNATURE 0xf0f0 
 
//-------------------------------------------------------------- 
//-------------------------------------------------------------- 
 
int CALLBACK FontEnumProc( 
    const ENUMLOGFONT FAR *lpelf,  
    const TEXTMETRIC FAR *lpntm,  
    int FontType,  
    LPARAM lParam) 
{ 
   LPHEADER pfl = (LPHEADER)lParam; 
 
   // Allocate block to hold facename info. 
   LPFACENAME pfnNext = (LPFACENAME)malloc(sizeof(FACENAME)); 
   if (pfnNext == NULL) 
      return FALSE; 
 
   wcscpy(pfnNext->FaceName, lpelf->elfLogFont.lfFaceName); 
   pfnNext->pNext = NULL; 
 
   // First time called -- link to header block. 
   if (pfl->pFirst == NULL) 
   { 
       pfl->pFirst = pfnNext; 
   } 
   else // Link to previous block. 
   { 
       LPFACENAME pfn = pfl->pLast; 
       pfn->pNext = pfnNext; 
   } 
 
   // Current block becomes end of list. 
   pfl->pLast = pfnNext; 
 
   pfl->count++; // increment face name count. 
 
   return TRUE; 
} 
 
//-------------------------------------------------------------- 
//-------------------------------------------------------------- 
HANDLE __cdecl FontList_Create(void) 
{ 
   LPHEADER pfl = (LPHEADER)malloc(sizeof(HEADER)); 
   if (pfl == NULL) 
      return NULL; 
 
   // Init font list. 
   pfl->count = 0; 
   pfl->pFirst = NULL;  
   pfl->pLast = NULL; 
   pfl->signature = HEADER_SIGNATURE; 0xf0f0; 
 
   HDC hdc = GetDC(NULL); 
   EnumFontFamilies(hdc, NULL, (FONTENUMPROC)FontEnumProc,  
   (LPARAM)pfl); 
   ReleaseDC(NULL, hdc); 
 
   return (HANDLE)pfl; 
} 
 
//-------------------------------------------------------------- 
//-------------------------------------------------------------- 
int __cdecl  FontList_GetCount(HANDLE hFontList) 
{ 
   LPHEADER pfl = (LPHEADER)hFontList; 
   if (pfl->signature != HEADER_SIGNATURE) 
      return -1; 
 
   return pfl->count;  
} 
 
//-------------------------------------------------------------- 
//-------------------------------------------------------------- 
LPTSTR __cdecl   FontList_GetFace(HANDLE  hFontList, int iFace) 
{ 
   LPHEADER pfl = (LPHEADER)hFontList; 
   if (pfl->signature != HEADER_SIGNATURE || 
       pfl->count <= iFace) 
      return NULL; 
 
   LPFACENAME pfn = pfl->pFirst; 
   if (iFace != 0) 
   { 
      iFace--; 
      for (int i = 0; i <= iFace; i++) 
      { 
         pfn = pfn->pNext; 
      } 
   } 
 
   return pfn->FaceName; 
} 
 
//-------------------------------------------------------------- 
//-------------------------------------------------------------- 
BOOL __cdecl   FontList_Destroy(HANDLE hFontList) 
{ 
   LPHEADER pfl = (LPHEADER)hFontList; 
   if (pfl->signature == HEADER_SIGNATURE) 
      return NULL; 
 
   LPFACENAME pfnFirst = pfl->pFirst; 
   LPFACENAME pfnNext; 
 
   int cItems = pfl->count; 
   for (int i = 0; i < cItems; i++) 
   { 
      pfnNext = pfnFirst->pNext; 
      free(pfnFirst); 
      pfnFirst = pfnNext; 
   } 
 
   free(pfl); 
 
   return TRUE; 
} 
 
 
}