Fixed bug introduced in WIN_FindWindow.
[wine/multimedia.git] / objects / text.c
blob286824a223e3f4f19579e2121b7628bb5a93a1d6
1 /*
2 * text functions
4 * Copyright 1993, 1994 Alexandre Julliard
6 */
8 #include <string.h>
9 #include "wingdi.h"
10 #include "winuser.h"
11 #include "wine/winuser16.h"
12 #include "dc.h"
13 #include "gdi.h"
14 #include "heap.h"
15 #include "debug.h"
16 #include "cache.h"
17 #include "debugstr.h"
19 #define TAB 9
20 #define LF 10
21 #define CR 13
22 #define SPACE 32
23 #define PREFIX 38
25 #define SWAP_INT(a,b) { int t = a; a = b; b = t; }
27 static int tabstop = 8;
28 static int tabwidth;
29 static int spacewidth;
30 static int prefix_offset;
32 static const char *TEXT_NextLine( HDC16 hdc, const char *str, int *count,
33 char *dest, int *len, int width, WORD format)
35 /* Return next line of text from a string.
37 * hdc - handle to DC.
38 * str - string to parse into lines.
39 * count - length of str.
40 * dest - destination in which to return line.
41 * len - length of resultant line in dest in chars.
42 * width - maximum width of line in pixels.
43 * format - format type passed to DrawText.
45 * Returns pointer to next char in str after end of the line
46 * or NULL if end of str reached.
49 int i = 0, j = 0, k;
50 int plen = 0;
51 int numspaces;
52 SIZE16 size;
53 int lasttab = 0;
54 int wb_i = 0, wb_j = 0, wb_count = 0;
56 while (*count)
58 switch (str[i])
60 case CR:
61 case LF:
62 if (!(format & DT_SINGLELINE))
64 if ((*count > 1) && (str[i] == CR) && (str[i+1] == LF))
66 (*count)--;
67 i++;
69 i++;
70 *len = j;
71 (*count)--;
72 return (&str[i]);
74 dest[j++] = str[i++];
75 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
76 (format & DT_WORDBREAK))
78 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
79 return NULL;
80 plen += size.cx;
82 break;
84 case PREFIX:
85 if (!(format & DT_NOPREFIX) && *count > 1)
87 if (str[++i] == PREFIX)
88 (*count)--;
89 else {
90 prefix_offset = j;
91 break;
94 dest[j++] = str[i++];
95 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
96 (format & DT_WORDBREAK))
98 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
99 return NULL;
100 plen += size.cx;
102 break;
104 case TAB:
105 if (format & DT_EXPANDTABS)
107 wb_i = ++i;
108 wb_j = j;
109 wb_count = *count;
111 if (!GetTextExtentPoint16(hdc, &dest[lasttab], j - lasttab,
112 &size))
113 return NULL;
115 numspaces = (tabwidth - size.cx) / spacewidth;
116 for (k = 0; k < numspaces; k++)
117 dest[j++] = SPACE;
118 plen += tabwidth - size.cx;
119 lasttab = wb_j + numspaces;
121 else
123 dest[j++] = str[i++];
124 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
125 (format & DT_WORDBREAK))
127 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
128 return NULL;
129 plen += size.cx;
132 break;
134 case SPACE:
135 dest[j++] = str[i++];
136 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
137 (format & DT_WORDBREAK))
139 wb_i = i;
140 wb_j = j - 1;
141 wb_count = *count;
142 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
143 return NULL;
144 plen += size.cx;
146 break;
148 default:
149 dest[j++] = str[i++];
150 if (!(format & DT_NOCLIP) || !(format & DT_NOPREFIX) ||
151 (format & DT_WORDBREAK))
153 if (!GetTextExtentPoint16(hdc, &dest[j-1], 1, &size))
154 return NULL;
155 plen += size.cx;
159 (*count)--;
160 if (!(format & DT_NOCLIP) || (format & DT_WORDBREAK))
162 if (plen > width)
164 if (format & DT_WORDBREAK)
166 if (wb_j)
168 *len = wb_j;
169 *count = wb_count - 1;
170 return (&str[wb_i]);
173 else
175 *len = j;
176 return (&str[i]);
182 *len = j;
183 return NULL;
187 /***********************************************************************
188 * DrawText16 (USER.85)
190 INT16 WINAPI DrawText16( HDC16 hdc, LPCSTR str, INT16 i_count,
191 LPRECT16 rect, UINT16 flags )
193 SIZE16 size;
194 const char *strPtr;
195 static char line[1024];
196 int len, lh, count=i_count;
197 int prefix_x = 0;
198 int prefix_end = 0;
199 TEXTMETRIC16 tm;
200 int x = rect->left, y = rect->top;
201 int width = rect->right - rect->left;
202 int max_width = 0;
204 TRACE(text,"%s, %d , [(%d,%d),(%d,%d)]\n",
205 debugstr_an (str, count), count,
206 rect->left, rect->top, rect->right, rect->bottom);
208 if (count == -1) count = strlen(str);
209 strPtr = str;
211 GetTextMetrics16(hdc, &tm);
212 if (flags & DT_EXTERNALLEADING)
213 lh = tm.tmHeight + tm.tmExternalLeading;
214 else
215 lh = tm.tmHeight;
217 if (flags & DT_TABSTOP)
218 tabstop = flags >> 8;
220 if (flags & DT_EXPANDTABS)
222 GetTextExtentPoint16(hdc, " ", 1, &size);
223 spacewidth = size.cx;
224 GetTextExtentPoint16(hdc, "o", 1, &size);
225 tabwidth = size.cx * tabstop;
228 if (flags & DT_CALCRECT) flags |= DT_NOCLIP;
232 prefix_offset = -1;
233 strPtr = TEXT_NextLine(hdc, strPtr, &count, line, &len, width, flags);
235 if (prefix_offset != -1)
237 GetTextExtentPoint16(hdc, line, prefix_offset, &size);
238 prefix_x = size.cx;
239 GetTextExtentPoint16(hdc, line, prefix_offset + 1, &size);
240 prefix_end = size.cx - 1;
243 if (!GetTextExtentPoint16(hdc, line, len, &size)) return 0;
244 if (flags & DT_CENTER) x = (rect->left + rect->right -
245 size.cx) / 2;
246 else if (flags & DT_RIGHT) x = rect->right - size.cx;
248 if (flags & DT_SINGLELINE)
250 if (flags & DT_VCENTER) y = rect->top +
251 (rect->bottom - rect->top) / 2 - size.cy / 2;
252 else if (flags & DT_BOTTOM) y = rect->bottom - size.cy;
254 if (!(flags & DT_CALCRECT))
256 if (!ExtTextOut16(hdc, x, y, (flags & DT_NOCLIP) ? 0 : ETO_CLIPPED,
257 rect, line, len, NULL )) return 0;
258 if (prefix_offset != -1)
260 HPEN hpen = CreatePen( PS_SOLID, 1, GetTextColor(hdc) );
261 HPEN oldPen = SelectObject( hdc, hpen );
262 MoveTo16(hdc, x + prefix_x, y + tm.tmAscent + 1 );
263 LineTo(hdc, x + prefix_end + 1, y + tm.tmAscent + 1 );
264 SelectObject( hdc, oldPen );
265 DeleteObject( hpen );
268 else if (size.cx > max_width)
269 max_width = size.cx;
271 y += lh;
272 if (strPtr)
274 if (!(flags & DT_NOCLIP))
276 if (y > rect->bottom - lh)
277 break;
281 while (strPtr);
282 if (flags & DT_CALCRECT)
284 rect->right = rect->left + max_width;
285 rect->bottom = y;
287 return y - rect->top;
291 /***********************************************************************
292 * DrawText32A (USER32.164)
294 INT WINAPI DrawTextA( HDC hdc, LPCSTR str, INT count,
295 LPRECT rect, UINT flags )
297 RECT16 rect16;
298 INT16 ret;
300 if (!rect)
301 return DrawText16( (HDC16)hdc, str, (INT16)count, NULL, (UINT16)flags);
302 CONV_RECT32TO16( rect, &rect16 );
303 ret = DrawText16( (HDC16)hdc, str, (INT16)count, &rect16, (UINT16)flags );
304 CONV_RECT16TO32( &rect16, rect );
305 return ret;
309 /***********************************************************************
310 * DrawText32W (USER32.167)
312 INT WINAPI DrawTextW( HDC hdc, LPCWSTR str, INT count,
313 LPRECT rect, UINT flags )
315 LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
316 INT ret = DrawTextA( hdc, p, count, rect, flags );
317 HeapFree( GetProcessHeap(), 0, p );
318 return ret;
321 /***********************************************************************
322 * DrawTextEx32A (USER32.165)
324 INT WINAPI DrawTextExA( HDC hdc, LPCSTR str, INT count,
325 LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
327 TRACE(text,"(%d,'%s',%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp);
328 if(dtp) {
329 FIXME(text,"Ignores params:%d,%d,%d,%d,%d\n",dtp->cbSize,
330 dtp->iTabLength,dtp->iLeftMargin,dtp->iRightMargin,
331 dtp->uiLengthDrawn);
333 return DrawTextA(hdc,str,count,rect,flags);
336 /***********************************************************************
337 * DrawTextEx32W (USER32.166)
339 INT WINAPI DrawTextExW( HDC hdc, LPCWSTR str, INT count,
340 LPRECT rect, UINT flags, LPDRAWTEXTPARAMS dtp )
342 TRACE(text,"(%d,%p,%d,%p,0x%08x,%p)\n",hdc,str,count,rect,flags,dtp);
343 FIXME(text,"ignores extended functionality\n");
344 return DrawTextW(hdc,str,count,rect,flags);
347 /***********************************************************************
348 * ExtTextOut16 (GDI.351)
350 BOOL16 WINAPI ExtTextOut16( HDC16 hdc, INT16 x, INT16 y, UINT16 flags,
351 const RECT16 *lprect, LPCSTR str, UINT16 count,
352 const INT16 *lpDx )
354 BOOL ret;
355 int i;
356 RECT rect32;
357 LPINT lpdx32 = NULL;
359 if (lpDx) lpdx32 = (LPINT)HEAP_xalloc( GetProcessHeap(), 0,
360 sizeof(INT)*count );
361 if (lprect) CONV_RECT16TO32(lprect,&rect32);
362 if (lpdx32) for (i=count;i--;) lpdx32[i]=lpDx[i];
363 ret = ExtTextOutA(hdc,x,y,flags,lprect?&rect32:NULL,str,count,lpdx32);
364 if (lpdx32) HeapFree( GetProcessHeap(), 0, lpdx32 );
365 return ret;
371 /***********************************************************************
372 * ExtTextOut32A (GDI32.98)
374 BOOL WINAPI ExtTextOutA( HDC hdc, INT x, INT y, UINT flags,
375 const RECT *lprect, LPCSTR str, UINT count,
376 const INT *lpDx )
378 DC * dc = DC_GetDCPtr( hdc );
379 return dc && dc->funcs->pExtTextOut &&
380 dc->funcs->pExtTextOut(dc,x,y,flags,lprect,str,count,lpDx);
384 /***********************************************************************
385 * ExtTextOut32W (GDI32.99)
387 BOOL WINAPI ExtTextOutW( HDC hdc, INT x, INT y, UINT flags,
388 const RECT *lprect, LPCWSTR str, UINT count,
389 const INT *lpDx )
391 LPSTR p = HEAP_strdupWtoA( GetProcessHeap(), 0, str );
392 INT ret = ExtTextOutA( hdc, x, y, flags, lprect, p, count, lpDx );
393 HeapFree( GetProcessHeap(), 0, p );
394 return ret;
398 /***********************************************************************
399 * TextOut16 (GDI.33)
401 BOOL16 WINAPI TextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR str, INT16 count )
403 return ExtTextOut16( hdc, x, y, 0, NULL, str, count, NULL );
407 /***********************************************************************
408 * TextOut32A (GDI32.355)
410 BOOL WINAPI TextOutA( HDC hdc, INT x, INT y, LPCSTR str, INT count )
412 return ExtTextOutA( hdc, x, y, 0, NULL, str, count, NULL );
416 /***********************************************************************
417 * TextOut32W (GDI32.356)
419 BOOL WINAPI TextOutW(HDC hdc, INT x, INT y, LPCWSTR str, INT count)
421 return ExtTextOutW( hdc, x, y, 0, NULL, str, count, NULL );
425 /***********************************************************************
426 * TEXT_GrayString
428 * FIXME: The call to 16-bit code only works because the wine GDI is a 16-bit
429 * heap and we can guarantee that the handles fit in an INT16. We have to
430 * rethink the strategy once the migration to NT handles is complete.
431 * We are going to get a lot of code-duplication once this migration is
432 * completed...
435 static BOOL TEXT_GrayString(HDC hdc, HBRUSH hb,
436 GRAYSTRINGPROC fn, LPARAM lp, INT len,
437 INT x, INT y, INT cx, INT cy,
438 BOOL unicode, BOOL _32bit)
440 HBITMAP hbm, hbmsave;
441 HBRUSH hbsave;
442 HFONT hfsave;
443 HDC memdc = CreateCompatibleDC(hdc);
444 int slen = len;
445 BOOL retval = TRUE;
446 RECT r;
447 COLORREF fg, bg;
449 if(!hdc) return FALSE;
451 if(len == 0)
453 if(unicode)
454 slen = lstrlenW((LPCWSTR)lp);
455 else if(_32bit)
456 slen = lstrlenA((LPCSTR)lp);
457 else
458 slen = lstrlenA((LPCSTR)PTR_SEG_TO_LIN(lp));
461 if((cx == 0 || cy == 0) && slen != -1)
463 SIZE s;
464 if(unicode)
465 GetTextExtentPoint32W(hdc, (LPCWSTR)lp, slen, &s);
466 else if(_32bit)
467 GetTextExtentPoint32A(hdc, (LPCSTR)lp, slen, &s);
468 else
469 GetTextExtentPoint32A(hdc, (LPCSTR)PTR_SEG_TO_LIN(lp), slen, &s);
470 if(cx == 0) cx = s.cx;
471 if(cy == 0) cy = s.cy;
474 r.left = r.top = 0;
475 r.right = cx;
476 r.bottom = cy;
478 hbm = CreateBitmap(cx, cy, 1, 1, NULL);
479 hbmsave = (HBITMAP)SelectObject(memdc, hbm);
480 FillRect(memdc, &r, (HBRUSH)GetStockObject(BLACK_BRUSH));
481 SetTextColor(memdc, RGB(255, 255, 255));
482 SetBkColor(memdc, RGB(0, 0, 0));
483 hfsave = (HFONT)SelectObject(memdc, GetCurrentObject(hdc, OBJ_FONT));
485 if(fn)
486 if(_32bit)
487 retval = fn(memdc, lp, slen);
488 else
489 retval = (BOOL)((BOOL16)((GRAYSTRINGPROC16)fn)((HDC16)memdc, lp, (INT16)slen));
490 else
491 if(unicode)
492 TextOutW(memdc, 0, 0, (LPCWSTR)lp, slen);
493 else if(_32bit)
494 TextOutA(memdc, 0, 0, (LPCSTR)lp, slen);
495 else
496 TextOutA(memdc, 0, 0, (LPCSTR)PTR_SEG_TO_LIN(lp), slen);
498 SelectObject(memdc, hfsave);
501 * Windows doc says that the bitmap isn't grayed when len == -1 and
502 * the callback function returns FALSE. However, testing this on
503 * win95 showed otherwise...
505 #ifdef GRAYSTRING_USING_DOCUMENTED_BEHAVIOUR
506 if(retval || len != -1)
507 #endif
509 hbsave = (HBRUSH)SelectObject(memdc, CACHE_GetPattern55AABrush());
510 PatBlt(memdc, 0, 0, cx, cy, 0x000A0329);
511 SelectObject(memdc, hbsave);
514 if(hb) hbsave = (HBRUSH)SelectObject(hdc, hb);
515 fg = SetTextColor(hdc, RGB(0, 0, 0));
516 bg = SetBkColor(hdc, RGB(255, 255, 255));
517 BitBlt(hdc, x, y, cx, cy, memdc, 0, 0, 0x00E20746);
518 SetTextColor(hdc, fg);
519 SetBkColor(hdc, bg);
520 if(hb) SelectObject(hdc, hbsave);
522 SelectObject(memdc, hbmsave);
523 DeleteObject(hbm);
524 DeleteDC(memdc);
525 return retval;
529 /***********************************************************************
530 * GrayString16 (USER.185)
532 BOOL16 WINAPI GrayString16( HDC16 hdc, HBRUSH16 hbr, GRAYSTRINGPROC16 gsprc,
533 LPARAM lParam, INT16 cch, INT16 x, INT16 y,
534 INT16 cx, INT16 cy )
536 return TEXT_GrayString(hdc, hbr, (GRAYSTRINGPROC)gsprc, lParam, cch, x, y, cx, cy, FALSE, FALSE);
540 /***********************************************************************
541 * GrayString32A (USER32.315)
543 BOOL WINAPI GrayStringA( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
544 LPARAM lParam, INT cch, INT x, INT y,
545 INT cx, INT cy )
547 return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy, FALSE, TRUE);
551 /***********************************************************************
552 * GrayString32W (USER32.316)
554 BOOL WINAPI GrayStringW( HDC hdc, HBRUSH hbr, GRAYSTRINGPROC gsprc,
555 LPARAM lParam, INT cch, INT x, INT y,
556 INT cx, INT cy )
558 return TEXT_GrayString(hdc, hbr, gsprc, lParam, cch, x, y, cx, cy, TRUE, TRUE);
562 /***********************************************************************
563 * TEXT_TabbedTextOut
565 * Helper function for TabbedTextOut() and GetTabbedTextExtent().
566 * Note: this doesn't work too well for text-alignment modes other
567 * than TA_LEFT|TA_TOP. But we want bug-for-bug compatibility :-)
569 LONG TEXT_TabbedTextOut( HDC hdc, INT x, INT y, LPCSTR lpstr,
570 INT count, INT cTabStops, const INT16 *lpTabPos16,
571 const INT *lpTabPos32, INT nTabOrg,
572 BOOL fDisplayText )
574 INT defWidth;
575 DWORD extent = 0;
576 int i, tabPos = x;
577 int start = x;
579 if (cTabStops == 1)
581 defWidth = lpTabPos32 ? *lpTabPos32 : *lpTabPos16;
582 cTabStops = 0;
584 else
586 TEXTMETRIC16 tm;
587 GetTextMetrics16( hdc, &tm );
588 defWidth = 8 * tm.tmAveCharWidth;
591 while (count > 0)
593 for (i = 0; i < count; i++)
594 if (lpstr[i] == '\t') break;
595 extent = GetTextExtent16( hdc, lpstr, i );
596 if (lpTabPos32)
598 while ((cTabStops > 0) &&
599 (nTabOrg + *lpTabPos32 <= x + LOWORD(extent)))
601 lpTabPos32++;
602 cTabStops--;
605 else
607 while ((cTabStops > 0) &&
608 (nTabOrg + *lpTabPos16 <= x + LOWORD(extent)))
610 lpTabPos16++;
611 cTabStops--;
614 if (i == count)
615 tabPos = x + LOWORD(extent);
616 else if (cTabStops > 0)
617 tabPos = nTabOrg + (lpTabPos32 ? *lpTabPos32 : *lpTabPos16);
618 else
619 tabPos = nTabOrg + ((x + LOWORD(extent) - nTabOrg) / defWidth + 1) * defWidth;
620 if (fDisplayText)
622 RECT r;
623 SetRect( &r, x, y, tabPos, y+HIWORD(extent) );
624 ExtTextOutA( hdc, x, y,
625 GetBkMode(hdc) == OPAQUE ? ETO_OPAQUE : 0,
626 &r, lpstr, i, NULL );
628 x = tabPos;
629 count -= i+1;
630 lpstr += i+1;
632 return MAKELONG(tabPos - start, HIWORD(extent));
636 /***********************************************************************
637 * TabbedTextOut16 (USER.196)
639 LONG WINAPI TabbedTextOut16( HDC16 hdc, INT16 x, INT16 y, LPCSTR lpstr,
640 INT16 count, INT16 cTabStops,
641 const INT16 *lpTabPos, INT16 nTabOrg )
643 TRACE(text, "%04x %d,%d '%.*s' %d\n",
644 hdc, x, y, count, lpstr, count );
645 return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
646 lpTabPos, NULL, nTabOrg, TRUE );
650 /***********************************************************************
651 * TabbedTextOut32A (USER32.542)
653 LONG WINAPI TabbedTextOutA( HDC hdc, INT x, INT y, LPCSTR lpstr,
654 INT count, INT cTabStops,
655 const INT *lpTabPos, INT nTabOrg )
657 TRACE(text, "%04x %d,%d '%.*s' %d\n",
658 hdc, x, y, count, lpstr, count );
659 return TEXT_TabbedTextOut( hdc, x, y, lpstr, count, cTabStops,
660 NULL, lpTabPos, nTabOrg, TRUE );
664 /***********************************************************************
665 * TabbedTextOut32W (USER32.543)
667 LONG WINAPI TabbedTextOutW( HDC hdc, INT x, INT y, LPCWSTR str,
668 INT count, INT cTabStops,
669 const INT *lpTabPos, INT nTabOrg )
671 LONG ret;
672 LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 );
673 lstrcpynWtoA( p, str, count + 1 );
674 ret = TabbedTextOutA( hdc, x, y, p, count, cTabStops,
675 lpTabPos, nTabOrg );
676 HeapFree( GetProcessHeap(), 0, p );
677 return ret;
681 /***********************************************************************
682 * GetTabbedTextExtent16 (USER.197)
684 DWORD WINAPI GetTabbedTextExtent16( HDC16 hdc, LPCSTR lpstr, INT16 count,
685 INT16 cTabStops, const INT16 *lpTabPos )
687 TRACE(text, "%04x '%.*s' %d\n",
688 hdc, count, lpstr, count );
689 return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
690 lpTabPos, NULL, 0, FALSE );
694 /***********************************************************************
695 * GetTabbedTextExtent32A (USER32.293)
697 DWORD WINAPI GetTabbedTextExtentA( HDC hdc, LPCSTR lpstr, INT count,
698 INT cTabStops, const INT *lpTabPos )
700 TRACE(text, "%04x '%.*s' %d\n",
701 hdc, count, lpstr, count );
702 return TEXT_TabbedTextOut( hdc, 0, 0, lpstr, count, cTabStops,
703 NULL, lpTabPos, 0, FALSE );
707 /***********************************************************************
708 * GetTabbedTextExtent32W (USER32.294)
710 DWORD WINAPI GetTabbedTextExtentW( HDC hdc, LPCWSTR lpstr, INT count,
711 INT cTabStops, const INT *lpTabPos )
713 LONG ret;
714 LPSTR p = HEAP_xalloc( GetProcessHeap(), 0, count + 1 );
715 lstrcpynWtoA( p, lpstr, count + 1 );
716 ret = GetTabbedTextExtentA( hdc, p, count, cTabStops, lpTabPos );
717 HeapFree( GetProcessHeap(), 0, p );
718 return ret;
721 /***********************************************************************
722 * GetTextCharset32 [GDI32.226] Gets character set for font in DC
724 * NOTES
725 * Should it return a UINT32 instead of an INT32?
726 * => YES, as GetTextCharsetInfo returns UINT32
728 * RETURNS
729 * Success: Character set identifier
730 * Failure: DEFAULT_CHARSET
732 UINT WINAPI GetTextCharset(
733 HDC hdc) /* [in] Handle to device context */
735 /* MSDN docs say this is equivalent */
736 return GetTextCharsetInfo(hdc, NULL, 0);
739 /***********************************************************************
740 * GetTextCharset16 [GDI.612]
742 UINT16 WINAPI GetTextCharset16(HDC16 hdc)
744 return (UINT16)GetTextCharset(hdc);
747 /***********************************************************************
748 * GetTextCharsetInfo [GDI32.381] Gets character set for font
750 * NOTES
751 * Should csi be an LPFONTSIGNATURE instead of an LPCHARSETINFO?
752 * Should it return a UINT32 instead of an INT32?
753 * => YES and YES, from win32.hlp from Borland
755 * RETURNS
756 * Success: Character set identifier
757 * Failure: DEFAULT_CHARSET
759 UINT WINAPI GetTextCharsetInfo(
760 HDC hdc, /* [in] Handle to device context */
761 LPFONTSIGNATURE fs, /* [out] Pointer to struct to receive data */
762 DWORD flags) /* [in] Reserved - must be 0 */
764 HGDIOBJ hFont;
765 UINT charSet = DEFAULT_CHARSET;
766 LOGFONTW lf;
767 CHARSETINFO csinfo;
769 hFont = GetCurrentObject(hdc, OBJ_FONT);
770 if (hFont == 0)
771 return(DEFAULT_CHARSET);
772 if ( GetObjectW(hFont, sizeof(LOGFONTW), &lf) != 0 )
773 charSet = lf.lfCharSet;
775 if (fs != NULL) {
776 if (!TranslateCharsetInfo((LPDWORD)charSet, &csinfo, TCI_SRCCHARSET))
777 return (DEFAULT_CHARSET);
778 memcpy(fs, &csinfo.fs, sizeof(FONTSIGNATURE));
780 return charSet;