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/******************************Module*Header*******************************\
* Module Name: cpanel.cxx** Control panel private entry point(s).** Created: 21-Apr-1992 16:49:18* Author: Gilman Wong [gilmanw]** Copyright (c) 1992-1999 Microsoft Corporation*\**************************************************************************/
#include "precomp.hxx"
/******************************Public*Routine******************************\
* GetFontResourceInfoW** The GetFontResourceInfo copies LOGFONTs, IFIMETRICs, or description* strings into a return buffer for all the fonts in the specified font* resource file.** Parameters:** lpFilename** Specifies the filename of the font resource being queried. It* must be a NULL-terminated ANSI string.** lpBytes* If lpBytes is 0 upon entry to the function, then the number of* BYTE's required for the requested information is returned via* this parameter. The lpBuffer is ignored for this case.** If lpBytes is not 0 upon entry, then it specifies the size of* the buffer pointed to by lpBuffer. The number of bytes copied* to the buffer is returned via this parameter upon exit.** lpBuffer** The return buffer into which the requested information is copied.* If lpBytes is 0, then this parameter is ignored.** iType** Must be one of the following:** GFRI_NUMFONTS** Copy into the return buffer a ULONG containing the* number of fonts in the font resource file. Caller* should pass in the address of a ULONG for lpBuffer* and sizeof(ULONG) for *lpBytes.** GFRI_DESCRIPTION** Copy the font resource's description string into the* return buffer. This may be a empty string.** GFRI_LOGFONTS** Copy an array of LOGFONTs corresponding to each of the* fonts in the font resource. Note that the LOGFONTs* must be returned in the font's NOTIONAL COORDINATES* since there is no DC specified.** GFRI_ISTRUETYPE** Returns TRUE via lpBuffer if font resource is TrueType.* FALSE otherwise. All other parameters are ignored.* Caller should pass in the address of a BOOL for lpBuffer* and sizeof(BOOL) for *lpBytes.** GFRI_TTFILENAME** Returns the .TTF filename imbedded as a string resource* in .FOT 16-bit TrueType font files. The filename is* copied into the lpBuffer. The function returns FALSE* if a filename could not be extracted.** GFRI_ISREMOVED** Returns TRUE via lpBuffer if the font file is no longer* in the engine font table (or was never there). FALSE is* returned via lpBuffer if the font file is still in the* font table. Caller should pass in the address of a BOOL* for lpBuffer and sizeof(BOOL for *lpBytes.** Returns:* TRUE if the function is successful, FALSE otherwise.** Comments:* This function is intended as a private entry point for Control Panel.** History:* 2-Sep-1993 -by- Gerrit van Wingerden [gerritv]* Turned it into a "W" function.** 15-Jul-1991 -by- Gilman Wong [gilmanw]* Wrote it.\**************************************************************************/
BOOL GetFontResourceInfoInternalW( LPWSTR lpFilename, ULONG cwc, ULONG cFiles, UINT cjIn, PSIZE_T lpBytes, LPVOID lpBuffer, DWORD iType){ BOOL bRet = FALSE; PFF *pPFF;
// Stabilize public PFT.
SEMOBJ so(ghsemPublicPFT);
// Create and validate user object for public PFT.
PUBLIC_PFTOBJ pfto; ASSERTGDI(pfto.bValid(), "How could it not be valid");
// Find the correct PFF.
if (pPFF = pfto.pPFFGet(lpFilename, cwc, cFiles, NULL, 0)) { PFFOBJ pffo(pPFF);
ASSERTGDI ( pffo.bValid(), "gdisrv!GetFontResourceInfoInternal(): bad HPFF handle\n" );
{ // What info is requested?
switch (iType) { case GFRI_NUMFONTS:
// Is there a buffer?
if (cjIn) { // If buffer big enough, return the count of fonts.
if ( cjIn >= sizeof(ULONG) ) *((PULONG) lpBuffer) = pffo.cFonts(); else return bRet; }
// In either case, return size of ULONG.
*((SIZE_T *) lpBytes) = sizeof(ULONG); bRet = TRUE;
break;
case GFRI_DESCRIPTION: { ULONG cjRet; PDEVOBJ pdo(pPFF->hdev);
cjRet = pdo.QueryFontFile( (ULONG_PTR) pPFF->hff, QFF_DESCRIPTION, 0, (PULONG) NULL);
if (cjRet != FD_ERROR ) { //
// If buffer exists, we need to copy into it.
//
if (cjIn) { //
// Get description string in UNICODE.
//
if (cjRet <= cjIn) { cjRet = pdo.QueryFontFile( (ULONG_PTR) pPFF->hff, QFF_DESCRIPTION, cjIn, (PULONG) lpBuffer); } else { // the buffer passed in is not big enough to contain the description for that font
cjRet = FD_ERROR; }
} }
if (cjRet != FD_ERROR ) { //
// Return size (byte count) of description string.
//
*((SIZE_T *) lpBytes) = (SIZE_T) cjRet; bRet = TRUE;
} }
break;
case GFRI_LOGFONTS:
if (cjIn == 0) *((SIZE_T *) lpBytes) = (SIZE_T) pffo.cFonts() * sizeof(LOGFONTW); else { PLOGFONTW plf = (PLOGFONTW) lpBuffer; // LOGFONTW ptr into lpBuffer
ULONG iFont; // index to font
SIZE_T cjCopy = 0; // bytes copied
// Make sure buffer is big enough.
if (cjIn < (pffo.cFonts() * sizeof(LOGFONTW))) { WARNING("gdisrv!GetFontResourceInfoInternal(): buffer too small\n"); return bRet; }
// Run the list of PFEs.
for (iFont=0; iFont<pffo.cFonts(); iFont++) { PFEOBJ pfeo(pffo.ppfe(iFont));
ASSERTGDI ( pfeo.bValid(), "gdisrv!GetFontResourceInfoInternal(): bad HPFE handle\n" );
// If data converted to LOGFONTW, increment size and
// move pointer to next.
vIFIMetricsToLogFontW(plf, pfeo.pifi()); cjCopy += sizeof(*plf); plf++; }
*((SIZE_T *) lpBytes) = (SIZE_T) cjCopy; }
bRet = TRUE;
break;
case GFRI_ISTRUETYPE:
// Is there a buffer?
if (cjIn) { // If buffer not NULL, return the BOOL.
if ( (lpBuffer != (LPVOID) NULL) && (cjIn >= sizeof(BOOL)) ) *((BOOL *) lpBuffer) = (pffo.hdev() == (HDEV) gppdevTrueType); else return bRet; }
// In either case, return size of ULONG.
*((SIZE_T *) lpBytes) = sizeof(BOOL); bRet = TRUE;
break;
case GFRI_ISREMOVED:
// We found the font file and we are in GFRI_ISREMOVED mode, that
// means we should return a FALSE boolean signifying that the font
// is still present in the system (i.e., the load count is still
// non-zero for this font file).
// Is there a buffer?
if (cjIn) { // If buffer not NULL, return the BOOL.
if ( (lpBuffer != (LPVOID) NULL) && (cjIn >= sizeof(BOOL)) ) *((BOOL *) lpBuffer) = FALSE; else return bRet; }
// In either case, return size of ULONG.
*((SIZE_T *) lpBytes) = sizeof(BOOL); bRet = TRUE;
break;
default: WARNING("gdisrv!GetFontResourceInfoInternal(): unknown query type\n"); SAVE_ERROR_CODE(ERROR_INVALID_PARAMETER);
break; // bRet is FALSE
} /* switch */
// Ich bin "outahere"!
return bRet;
} /* if */
} /* for */
// Couldn't find the font file in the public PFT. If we are in GFRI_ISREMOVED
// mode, that means we should return a TRUE boolean signifying that the font
// if no longer (or was never) added to the system.
if ( iType == GFRI_ISREMOVED ) { // Is there a buffer?
if (cjIn) { // If buffer not NULL, return the BOOL.
if ( (lpBuffer != (LPVOID) NULL) && (cjIn >= sizeof(BOOL)) ) *((BOOL *) lpBuffer) = TRUE; else return bRet; }
// In either case, return size of ULONG.
*((SIZE_T *) lpBytes) = sizeof(BOOL); bRet = TRUE; }
#if DBG
// If not in GFRI_ISREMOVED mode, then this is a problem. Why were we not able
// to find the font in the table. Lets alert the debugger.
if ( iType != GFRI_ISREMOVED ) { DbgPrint("gdisrv!GetFontResourceInfoInternal(): no entry found for %s\n", lpFilename); }#endif
// Ich bin "outahere"!
return bRet;
}
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