wine/dlls/gdi32/gdidc.c

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/*
* GDI Device Context functions
*
* Copyright 1993, 1994 Alexandre Julliard
* Copyright 1997 Bertho A. Stultiens
* 1999 Huw D M Davies
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "gdi_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(gdi);
static DC_ATTR *get_dc_attr( HDC hdc )
{
WORD type = gdi_handle_type( hdc );
DC_ATTR *dc_attr;
if ((type & 0x1f) != NTGDI_OBJ_DC || !(dc_attr = get_gdi_client_ptr( hdc, 0 )))
{
SetLastError( ERROR_INVALID_HANDLE );
return NULL;
}
return dc_attr->disabled ? NULL : dc_attr;
}
/***********************************************************************
* GetTextAlign (GDI32.@)
*/
UINT WINAPI GetTextAlign( HDC hdc )
{
DC_ATTR *dc_attr = get_dc_attr( hdc );
return dc_attr ? dc_attr->text_align : 0;
}
/***********************************************************************
* SetTextAlign (GDI32.@)
*/
UINT WINAPI SetTextAlign( HDC hdc, UINT align )
{
DC_ATTR *dc_attr;
UINT ret;
TRACE("hdc=%p align=%d\n", hdc, align);
if (is_meta_dc( hdc )) return METADC_SetTextAlign( hdc, align );
if (!(dc_attr = get_dc_attr( hdc ))) return GDI_ERROR;
if (dc_attr->emf && !EMFDC_SetTextAlign( dc_attr, align )) return GDI_ERROR;
ret = dc_attr->text_align;
dc_attr->text_align = align;
return ret;
}
/***********************************************************************
* GetBkMode (GDI32.@)
*/
INT WINAPI GetBkMode( HDC hdc )
{
DC_ATTR *dc_attr = get_dc_attr( hdc );
return dc_attr ? dc_attr->background_mode : 0;
}
/***********************************************************************
* SetBkMode (GDI32.@)
*/
INT WINAPI SetBkMode( HDC hdc, INT mode )
{
DC_ATTR *dc_attr;
INT ret;
if (mode <= 0 || mode > BKMODE_LAST)
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (is_meta_dc( hdc )) return METADC_SetBkMode( hdc, mode );
if (!(dc_attr = get_dc_attr( hdc ))) return 0;
if (dc_attr->emf && !EMFDC_SetBkMode( dc_attr, mode )) return 0;
ret = dc_attr->background_mode;
dc_attr->background_mode = mode;
return ret;
}
/***********************************************************************
* GetLayout (GDI32.@)
*/
DWORD WINAPI GetLayout( HDC hdc )
{
DC_ATTR *dc_attr = get_dc_attr( hdc );
return dc_attr ? dc_attr->layout : GDI_ERROR;
}
/***********************************************************************
* GetCurrentPositionEx (GDI32.@)
*/
BOOL WINAPI GetCurrentPositionEx( HDC hdc, POINT *point )
{
DC_ATTR *dc_attr;
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
*point = dc_attr->cur_pos;
return TRUE;
}
/***********************************************************************
* GetROP2 (GDI32.@)
*/
INT WINAPI GetROP2( HDC hdc )
{
DC_ATTR *dc_attr = get_dc_attr( hdc );
return dc_attr ? dc_attr->rop_mode : 0;
}
/***********************************************************************
* SetROP2 (GDI32.@)
*/
INT WINAPI SetROP2( HDC hdc, INT mode )
{
DC_ATTR *dc_attr;
INT ret;
if ((mode < R2_BLACK) || (mode > R2_WHITE))
{
SetLastError(ERROR_INVALID_PARAMETER);
return 0;
}
if (is_meta_dc( hdc )) return METADC_SetROP2( hdc, mode );
if (!(dc_attr = get_dc_attr( hdc ))) return 0;
if (dc_attr->emf && !EMFDC_SetROP2( dc_attr, mode )) return 0;
ret = dc_attr->rop_mode;
dc_attr->rop_mode = mode;
return ret;
}
/***********************************************************************
* SetPixel (GDI32.@)
*/
COLORREF WINAPI SetPixel( HDC hdc, INT x, INT y, COLORREF color )
{
DC_ATTR *dc_attr;
if (is_meta_dc( hdc )) return METADC_SetPixel( hdc, x, y, color );
if (!(dc_attr = get_dc_attr( hdc ))) return CLR_INVALID;
if (dc_attr->emf && !EMFDC_SetPixel( dc_attr, x, y, color )) return CLR_INVALID;
return NtGdiSetPixel( hdc, x, y, color );
}
/***********************************************************************
* SetPixelV (GDI32.@)
*/
BOOL WINAPI SetPixelV( HDC hdc, INT x, INT y, COLORREF color )
{
return SetPixel( hdc, x, y, color ) != CLR_INVALID;
}
/***********************************************************************
* LineTo (GDI32.@)
*/
BOOL WINAPI LineTo( HDC hdc, INT x, INT y )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)\n", hdc, x, y );
if (is_meta_dc( hdc )) return METADC_LineTo( hdc, x, y );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_LineTo( dc_attr, x, y )) return FALSE;
return NtGdiLineTo( hdc, x, y );
}
/***********************************************************************
* MoveToEx (GDI32.@)
*/
BOOL WINAPI MoveToEx( HDC hdc, INT x, INT y, POINT *pt )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d), %p\n", hdc, x, y, pt );
if (is_meta_dc( hdc )) return METADC_MoveTo( hdc, x, y );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_MoveTo( dc_attr, x, y )) return FALSE;
return NtGdiMoveTo( hdc, x, y, pt );
}
/***********************************************************************
* Arc (GDI32.@)
*/
BOOL WINAPI Arc( HDC hdc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d), (%d, %d), (%d, %d)\n", hdc, left, top,
right, bottom, xstart, ystart, xend, yend );
if (is_meta_dc( hdc ))
return METADC_Arc( hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ArcChordPie( dc_attr, left, top, right, bottom,
xstart, ystart, xend, yend, EMR_ARC ))
return FALSE;
return NtGdiArcInternal( NtGdiArc, hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
}
/***********************************************************************
* ArcTo (GDI32.@)
*/
BOOL WINAPI ArcTo( HDC hdc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d), (%d, %d), (%d, %d)\n", hdc, left, top,
right, bottom, xstart, ystart, xend, yend );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ArcChordPie( dc_attr, left, top, right, bottom,
xstart, ystart, xend, yend, EMR_ARCTO ))
return FALSE;
return NtGdiArcInternal( NtGdiArcTo, hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
}
/***********************************************************************
* Chord (GDI32.@)
*/
BOOL WINAPI Chord( HDC hdc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d), (%d, %d), (%d, %d)\n", hdc, left, top,
right, bottom, xstart, ystart, xend, yend );
if (is_meta_dc( hdc ))
return METADC_Chord( hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ArcChordPie( dc_attr, left, top, right, bottom,
xstart, ystart, xend, yend, EMR_CHORD ))
return FALSE;
return NtGdiArcInternal( NtGdiChord, hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
}
/***********************************************************************
* Pie (GDI32.@)
*/
BOOL WINAPI Pie( HDC hdc, INT left, INT top, INT right, INT bottom,
INT xstart, INT ystart, INT xend, INT yend )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d), (%d, %d), (%d, %d)\n", hdc, left, top,
right, bottom, xstart, ystart, xend, yend );
if (is_meta_dc( hdc ))
return METADC_Pie( hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ArcChordPie( dc_attr, left, top, right, bottom,
xstart, ystart, xend, yend, EMR_PIE ))
return FALSE;
return NtGdiArcInternal( NtGdiPie, hdc, left, top, right, bottom,
xstart, ystart, xend, yend );
}
/***********************************************************************
* AngleArc (GDI32.@)
*/
BOOL WINAPI AngleArc( HDC hdc, INT x, INT y, DWORD radius, FLOAT start_angle, FLOAT sweep_angle )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d), %u, %f, %f\n", hdc, x, y, radius, start_angle, sweep_angle );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_AngleArc( dc_attr, x, y, radius, start_angle, sweep_angle ))
return FALSE;
return NtGdiAngleArc( hdc, x, y, radius, start_angle, sweep_angle );
}
/***********************************************************************
* Ellipse (GDI32.@)
*/
BOOL WINAPI Ellipse( HDC hdc, INT left, INT top, INT right, INT bottom )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d)\n", hdc, left, top, right, bottom );
if (is_meta_dc( hdc )) return METADC_Ellipse( hdc, left, top, right, bottom );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_Ellipse( dc_attr, left, top, right, bottom )) return FALSE;
return NtGdiEllipse( hdc, left, top, right, bottom );
}
/***********************************************************************
* Rectangle (GDI32.@)
*/
BOOL WINAPI Rectangle( HDC hdc, INT left, INT top, INT right, INT bottom )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d)\n", hdc, left, top, right, bottom );
if (is_meta_dc( hdc )) return METADC_Rectangle( hdc, left, top, right, bottom );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_Rectangle( dc_attr, left, top, right, bottom )) return FALSE;
return NtGdiRectangle( hdc, left, top, right, bottom );
}
/***********************************************************************
* RoundRect (GDI32.@)
*/
BOOL WINAPI RoundRect( HDC hdc, INT left, INT top, INT right,
INT bottom, INT ell_width, INT ell_height )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d)-(%d, %d), %dx%d\n", hdc, left, top, right, bottom,
ell_width, ell_height );
if (is_meta_dc( hdc ))
return METADC_RoundRect( hdc, left, top, right, bottom, ell_width, ell_height );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_RoundRect( dc_attr, left, top, right, bottom,
ell_width, ell_height ))
return FALSE;
return NtGdiRoundRect( hdc, left, top, right, bottom, ell_width, ell_height );
}
/**********************************************************************
* Polygon (GDI32.@)
*/
BOOL WINAPI Polygon( HDC hdc, const POINT *points, INT count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %d\n", hdc, points, count );
if (is_meta_dc( hdc )) return METADC_Polygon( hdc, points, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_Polygon( dc_attr, points, count )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, (const UINT *)&count, 1, NtGdiPolyPolygon );
}
/**********************************************************************
* PolyPolygon (GDI32.@)
*/
BOOL WINAPI PolyPolygon( HDC hdc, const POINT *points, const INT *counts, UINT polygons )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %p, %u\n", hdc, points, counts, polygons );
if (is_meta_dc( hdc )) return METADC_PolyPolygon( hdc, points, counts, polygons );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolyPolygon( dc_attr, points, counts, polygons )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, (const UINT *)counts, polygons, NtGdiPolyPolygon );
}
/**********************************************************************
* Polyline (GDI32.@)
*/
BOOL WINAPI Polyline( HDC hdc, const POINT *points, INT count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %d\n", hdc, points, count );
if (is_meta_dc( hdc )) return METADC_Polyline( hdc, points, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_Polyline( dc_attr, points, count )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, (const UINT *)&count, 1, NtGdiPolyPolyline );
}
/**********************************************************************
* PolyPolyline (GDI32.@)
*/
BOOL WINAPI PolyPolyline( HDC hdc, const POINT *points, const DWORD *counts, DWORD polylines )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %p, %u\n", hdc, points, counts, polylines );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolyPolyline( dc_attr, points, counts, polylines )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, counts, polylines, NtGdiPolyPolyline );
}
/******************************************************************************
* PolyBezier (GDI32.@)
*/
BOOL WINAPI PolyBezier( HDC hdc, const POINT *points, DWORD count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %u\n", hdc, points, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolyBezier( dc_attr, points, count )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, &count, 1, NtGdiPolyBezier );
}
/******************************************************************************
* PolyBezierTo (GDI32.@)
*/
BOOL WINAPI PolyBezierTo( HDC hdc, const POINT *points, DWORD count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %u\n", hdc, points, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolyBezierTo( dc_attr, points, count )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, &count, 1, NtGdiPolyBezierTo );
}
/**********************************************************************
* PolylineTo (GDI32.@)
*/
BOOL WINAPI PolylineTo( HDC hdc, const POINT *points, DWORD count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %u\n", hdc, points, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolylineTo( dc_attr, points, count )) return FALSE;
return NtGdiPolyPolyDraw( hdc, points, &count, 1, NtGdiPolylineTo );
}
/***********************************************************************
* PolyDraw (GDI32.@)
*/
BOOL WINAPI PolyDraw( HDC hdc, const POINT *points, const BYTE *types, DWORD count )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %p, %u\n", hdc, points, types, count );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PolyDraw( dc_attr, points, types, count )) return FALSE;
return NtGdiPolyDraw( hdc, points, types, count );
}
/***********************************************************************
* FillRgn (GDI32.@)
*/
BOOL WINAPI FillRgn( HDC hdc, HRGN hrgn, HBRUSH hbrush )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %p\n", hdc, hrgn, hbrush );
if (is_meta_dc( hdc )) return METADC_FillRgn( hdc, hrgn, hbrush );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_FillRgn( dc_attr, hrgn, hbrush )) return FALSE;
return NtGdiFillRgn( hdc, hrgn, hbrush );
}
/***********************************************************************
* PaintRgn (GDI32.@)
*/
BOOL WINAPI PaintRgn( HDC hdc, HRGN hrgn )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p\n", hdc, hrgn );
if (is_meta_dc( hdc )) return METADC_PaintRgn( hdc, hrgn );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_PaintRgn( dc_attr, hrgn )) return FALSE;
return NtGdiFillRgn( hdc, hrgn, GetCurrentObject( hdc, OBJ_BRUSH ));
}
/***********************************************************************
* FrameRgn (GDI32.@)
*/
BOOL WINAPI FrameRgn( HDC hdc, HRGN hrgn, HBRUSH hbrush, INT width, INT height )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p, %p, %dx%d\n", hdc, hrgn, hbrush, width, height );
if (is_meta_dc( hdc )) return METADC_FrameRgn( hdc, hrgn, hbrush, width, height );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_FrameRgn( dc_attr, hrgn, hbrush, width, height ))
return FALSE;
return NtGdiFrameRgn( hdc, hrgn, hbrush, width, height );
}
/***********************************************************************
* InvertRgn (GDI32.@)
*/
BOOL WINAPI InvertRgn( HDC hdc, HRGN hrgn )
{
DC_ATTR *dc_attr;
TRACE( "%p, %p\n", hdc, hrgn );
if (is_meta_dc( hdc )) return METADC_InvertRgn( hdc, hrgn );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_InvertRgn( dc_attr, hrgn )) return FALSE;
return NtGdiInvertRgn( hdc, hrgn );
}
/***********************************************************************
* ExtFloodFill (GDI32.@)
*/
BOOL WINAPI ExtFloodFill( HDC hdc, INT x, INT y, COLORREF color, UINT fill_type )
{
DC_ATTR *dc_attr;
TRACE( "%p, (%d, %d), %08x, %x\n", hdc, x, y, color, fill_type );
if (is_meta_dc( hdc )) return METADC_ExtFloodFill( hdc, x, y, color, fill_type );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ExtFloodFill( dc_attr, x, y, color, fill_type )) return FALSE;
return NtGdiExtFloodFill( hdc, x, y, color, fill_type );
}
/***********************************************************************
* FloodFill (GDI32.@)
*/
BOOL WINAPI FloodFill( HDC hdc, INT x, INT y, COLORREF color )
{
return ExtFloodFill( hdc, x, y, color, FLOODFILLBORDER );
}
/******************************************************************************
* GdiGradientFill (GDI32.@)
*/
BOOL WINAPI GdiGradientFill( HDC hdc, TRIVERTEX *vert_array, ULONG nvert,
void *grad_array, ULONG ngrad, ULONG mode )
{
DC_ATTR *dc_attr;
TRACE( "%p vert_array:%p nvert:%d grad_array:%p ngrad:%d\n", hdc, vert_array,
nvert, grad_array, ngrad );
if (!(dc_attr = get_dc_attr( hdc )))
{
SetLastError( ERROR_INVALID_PARAMETER );
return FALSE;
}
if (dc_attr->emf &&
!EMFDC_GradientFill( dc_attr, vert_array, nvert, grad_array, ngrad, mode ))
return FALSE;
return NtGdiGradientFill( hdc, vert_array, nvert, grad_array, ngrad, mode );
}
/***********************************************************************
* ExtTextOutW (GDI32.@)
*/
BOOL WINAPI ExtTextOutW( HDC hdc, INT x, INT y, UINT flags, const RECT *rect,
const WCHAR *str, UINT count, const INT *dx )
{
DC_ATTR *dc_attr;
if (is_meta_dc( hdc )) return METADC_ExtTextOut( hdc, x, y, flags, rect, str, count, dx );
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_ExtTextOut( dc_attr, x, y, flags, rect, str, count, dx ))
return FALSE;
return NtGdiExtTextOutW( hdc, x, y, flags, rect, str, count, dx, 0 );
}
/***********************************************************************
* BeginPath (GDI32.@)
*/
BOOL WINAPI BeginPath(HDC hdc)
{
DC_ATTR *dc_attr;
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_BeginPath( dc_attr )) return FALSE;
return NtGdiBeginPath( hdc );
}
/***********************************************************************
* EndPath (GDI32.@)
*/
BOOL WINAPI EndPath(HDC hdc)
{
DC_ATTR *dc_attr;
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_EndPath( dc_attr )) return FALSE;
return NtGdiEndPath( hdc );
}
/***********************************************************************
* AbortPath (GDI32.@)
*/
BOOL WINAPI AbortPath( HDC hdc )
{
DC_ATTR *dc_attr;
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_AbortPath( dc_attr )) return FALSE;
return NtGdiAbortPath( hdc );
}
/***********************************************************************
* CloseFigure (GDI32.@)
*/
BOOL WINAPI CloseFigure( HDC hdc )
{
DC_ATTR *dc_attr;
if (!(dc_attr = get_dc_attr( hdc ))) return FALSE;
if (dc_attr->emf && !EMFDC_CloseFigure( dc_attr )) return FALSE;
return NtGdiCloseFigure( hdc );
}
/***********************************************************************
* GdiSetPixelFormat (GDI32.@)
*/
BOOL WINAPI GdiSetPixelFormat( HDC hdc, INT format, const PIXELFORMATDESCRIPTOR *descr )
{
TRACE( "(%p,%d,%p)\n", hdc, format, descr );
return NtGdiSetPixelFormat( hdc, format );
}