620 lines
17 KiB
C
620 lines
17 KiB
C
/*
|
|
* GDI mapping mode functions
|
|
*
|
|
* Copyright 1993 Alexandre Julliard
|
|
*
|
|
* 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 <stdarg.h>
|
|
|
|
#include "windef.h"
|
|
#include "winbase.h"
|
|
#include "wingdi.h"
|
|
#include "gdi_private.h"
|
|
#include "wine/debug.h"
|
|
|
|
WINE_DEFAULT_DEBUG_CHANNEL(dc);
|
|
|
|
|
|
/***********************************************************************
|
|
* MAPPING_FixIsotropic
|
|
*
|
|
* Fix viewport extensions for isotropic mode.
|
|
*/
|
|
static void MAPPING_FixIsotropic( DC * dc )
|
|
{
|
|
double xdim = fabs((double)dc->vportExtX * dc->virtual_size.cx /
|
|
(dc->virtual_res.cx * dc->wndExtX));
|
|
double ydim = fabs((double)dc->vportExtY * dc->virtual_size.cy /
|
|
(dc->virtual_res.cy * dc->wndExtY));
|
|
|
|
if (xdim > ydim)
|
|
{
|
|
INT mincx = (dc->vportExtX >= 0) ? 1 : -1;
|
|
dc->vportExtX = floor(dc->vportExtX * ydim / xdim + 0.5);
|
|
if (!dc->vportExtX) dc->vportExtX = mincx;
|
|
}
|
|
else
|
|
{
|
|
INT mincy = (dc->vportExtY >= 0) ? 1 : -1;
|
|
dc->vportExtY = floor(dc->vportExtY * xdim / ydim + 0.5);
|
|
if (!dc->vportExtY) dc->vportExtY = mincy;
|
|
}
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* null driver fallback implementations
|
|
*/
|
|
|
|
BOOL nulldrv_OffsetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (pt)
|
|
{
|
|
pt->x = dc->vportOrgX;
|
|
pt->y = dc->vportOrgY;
|
|
}
|
|
dc->vportOrgX += x;
|
|
dc->vportOrgY += y;
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_OffsetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (pt)
|
|
{
|
|
pt->x = dc->wndOrgX;
|
|
pt->y = dc->wndOrgY;
|
|
}
|
|
dc->wndOrgX += x;
|
|
dc->wndOrgY += y;
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_ScaleViewportExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (size)
|
|
{
|
|
size->cx = dc->vportExtX;
|
|
size->cy = dc->vportExtY;
|
|
}
|
|
if (dc->MapMode != MM_ISOTROPIC && dc->MapMode != MM_ANISOTROPIC) return TRUE;
|
|
if (!x_num || !x_denom || !y_num || !y_denom) return FALSE;
|
|
|
|
dc->vportExtX = (dc->vportExtX * x_num) / x_denom;
|
|
dc->vportExtY = (dc->vportExtY * y_num) / y_denom;
|
|
if (dc->vportExtX == 0) dc->vportExtX = 1;
|
|
if (dc->vportExtY == 0) dc->vportExtY = 1;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_ScaleWindowExtEx( PHYSDEV dev, INT x_num, INT x_denom, INT y_num, INT y_denom, SIZE *size )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (size)
|
|
{
|
|
size->cx = dc->wndExtX;
|
|
size->cy = dc->wndExtY;
|
|
}
|
|
if (dc->MapMode != MM_ISOTROPIC && dc->MapMode != MM_ANISOTROPIC) return TRUE;
|
|
if (!x_num || !x_denom || !y_num || !y_denom) return FALSE;
|
|
|
|
dc->wndExtX = (dc->wndExtX * x_num) / x_denom;
|
|
dc->wndExtY = (dc->wndExtY * y_num) / y_denom;
|
|
if (dc->wndExtX == 0) dc->wndExtX = 1;
|
|
if (dc->wndExtY == 0) dc->wndExtY = 1;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
INT nulldrv_SetMapMode( PHYSDEV dev, INT mode )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
INT ret = dc->MapMode;
|
|
INT horzSize, vertSize, horzRes, vertRes;
|
|
|
|
if (mode == dc->MapMode && (mode == MM_ISOTROPIC || mode == MM_ANISOTROPIC)) return ret;
|
|
|
|
horzSize = dc->virtual_size.cx;
|
|
vertSize = dc->virtual_size.cy;
|
|
horzRes = dc->virtual_res.cx;
|
|
vertRes = dc->virtual_res.cy;
|
|
switch (mode)
|
|
{
|
|
case MM_TEXT:
|
|
dc->wndExtX = 1;
|
|
dc->wndExtY = 1;
|
|
dc->vportExtX = 1;
|
|
dc->vportExtY = 1;
|
|
break;
|
|
case MM_LOMETRIC:
|
|
case MM_ISOTROPIC:
|
|
dc->wndExtX = horzSize * 10;
|
|
dc->wndExtY = vertSize * 10;
|
|
dc->vportExtX = horzRes;
|
|
dc->vportExtY = -vertRes;
|
|
break;
|
|
case MM_HIMETRIC:
|
|
dc->wndExtX = horzSize * 100;
|
|
dc->wndExtY = vertSize * 100;
|
|
dc->vportExtX = horzRes;
|
|
dc->vportExtY = -vertRes;
|
|
break;
|
|
case MM_LOENGLISH:
|
|
dc->wndExtX = MulDiv(1000, horzSize, 254);
|
|
dc->wndExtY = MulDiv(1000, vertSize, 254);
|
|
dc->vportExtX = horzRes;
|
|
dc->vportExtY = -vertRes;
|
|
break;
|
|
case MM_HIENGLISH:
|
|
dc->wndExtX = MulDiv(10000, horzSize, 254);
|
|
dc->wndExtY = MulDiv(10000, vertSize, 254);
|
|
dc->vportExtX = horzRes;
|
|
dc->vportExtY = -vertRes;
|
|
break;
|
|
case MM_TWIPS:
|
|
dc->wndExtX = MulDiv(14400, horzSize, 254);
|
|
dc->wndExtY = MulDiv(14400, vertSize, 254);
|
|
dc->vportExtX = horzRes;
|
|
dc->vportExtY = -vertRes;
|
|
break;
|
|
case MM_ANISOTROPIC:
|
|
break;
|
|
default:
|
|
return 0;
|
|
}
|
|
/* RTL layout is always MM_ANISOTROPIC */
|
|
if (!(dc->layout & LAYOUT_RTL)) dc->MapMode = mode;
|
|
DC_UpdateXforms( dc );
|
|
return ret;
|
|
}
|
|
|
|
BOOL nulldrv_SetViewportExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (size)
|
|
{
|
|
size->cx = dc->vportExtX;
|
|
size->cy = dc->vportExtY;
|
|
}
|
|
if (dc->MapMode != MM_ISOTROPIC && dc->MapMode != MM_ANISOTROPIC) return TRUE;
|
|
if (!cx || !cy) return FALSE;
|
|
dc->vportExtX = cx;
|
|
dc->vportExtY = cy;
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_SetViewportOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (pt)
|
|
{
|
|
pt->x = dc->vportOrgX;
|
|
pt->y = dc->vportOrgY;
|
|
}
|
|
dc->vportOrgX = x;
|
|
dc->vportOrgY = y;
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_SetWindowExtEx( PHYSDEV dev, INT cx, INT cy, SIZE *size )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (size)
|
|
{
|
|
size->cx = dc->wndExtX;
|
|
size->cy = dc->wndExtY;
|
|
}
|
|
if (dc->MapMode != MM_ISOTROPIC && dc->MapMode != MM_ANISOTROPIC) return TRUE;
|
|
if (!cx || !cy) return FALSE;
|
|
dc->wndExtX = cx;
|
|
dc->wndExtY = cy;
|
|
/* The API docs say that you should call SetWindowExtEx before
|
|
SetViewportExtEx. This advice does not imply that Windows
|
|
doesn't ensure the isotropic mapping after SetWindowExtEx! */
|
|
if (dc->MapMode == MM_ISOTROPIC) MAPPING_FixIsotropic( dc );
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_SetWindowOrgEx( PHYSDEV dev, INT x, INT y, POINT *pt )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
if (pt)
|
|
{
|
|
pt->x = dc->wndOrgX;
|
|
pt->y = dc->wndOrgY;
|
|
}
|
|
dc->wndOrgX = x;
|
|
dc->wndOrgY = y;
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_ModifyWorldTransform( PHYSDEV dev, const XFORM *xform, DWORD mode )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
switch (mode)
|
|
{
|
|
case MWT_IDENTITY:
|
|
dc->xformWorld2Wnd.eM11 = 1.0f;
|
|
dc->xformWorld2Wnd.eM12 = 0.0f;
|
|
dc->xformWorld2Wnd.eM21 = 0.0f;
|
|
dc->xformWorld2Wnd.eM22 = 1.0f;
|
|
dc->xformWorld2Wnd.eDx = 0.0f;
|
|
dc->xformWorld2Wnd.eDy = 0.0f;
|
|
break;
|
|
case MWT_LEFTMULTIPLY:
|
|
CombineTransform( &dc->xformWorld2Wnd, xform, &dc->xformWorld2Wnd );
|
|
break;
|
|
case MWT_RIGHTMULTIPLY:
|
|
CombineTransform( &dc->xformWorld2Wnd, &dc->xformWorld2Wnd, xform );
|
|
break;
|
|
default:
|
|
return FALSE;
|
|
}
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
BOOL nulldrv_SetWorldTransform( PHYSDEV dev, const XFORM *xform )
|
|
{
|
|
DC *dc = get_nulldrv_dc( dev );
|
|
|
|
dc->xformWorld2Wnd = *xform;
|
|
DC_UpdateXforms( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
/***********************************************************************
|
|
* DPtoLP (GDI32.@)
|
|
*/
|
|
BOOL WINAPI DPtoLP( HDC hdc, LPPOINT points, INT count )
|
|
{
|
|
DC * dc = get_dc_ptr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
if (dc->vport2WorldValid)
|
|
{
|
|
while (count--)
|
|
{
|
|
double x = points->x;
|
|
double y = points->y;
|
|
points->x = floor( x * dc->xformVport2World.eM11 +
|
|
y * dc->xformVport2World.eM21 +
|
|
dc->xformVport2World.eDx + 0.5 );
|
|
points->y = floor( x * dc->xformVport2World.eM12 +
|
|
y * dc->xformVport2World.eM22 +
|
|
dc->xformVport2World.eDy + 0.5 );
|
|
points++;
|
|
}
|
|
}
|
|
release_dc_ptr( dc );
|
|
return (count < 0);
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* LPtoDP (GDI32.@)
|
|
*/
|
|
BOOL WINAPI LPtoDP( HDC hdc, LPPOINT points, INT count )
|
|
{
|
|
DC * dc = get_dc_ptr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
while (count--)
|
|
{
|
|
double x = points->x;
|
|
double y = points->y;
|
|
points->x = floor( x * dc->xformWorld2Vport.eM11 +
|
|
y * dc->xformWorld2Vport.eM21 +
|
|
dc->xformWorld2Vport.eDx + 0.5 );
|
|
points->y = floor( x * dc->xformWorld2Vport.eM12 +
|
|
y * dc->xformWorld2Vport.eM22 +
|
|
dc->xformWorld2Vport.eDy + 0.5 );
|
|
points++;
|
|
}
|
|
release_dc_ptr( dc );
|
|
return TRUE;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetMapMode (GDI32.@)
|
|
*/
|
|
INT WINAPI SetMapMode( HDC hdc, INT mode )
|
|
{
|
|
INT ret = 0;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
TRACE("%p %d\n", hdc, mode );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetMapMode );
|
|
ret = physdev->funcs->pSetMapMode( physdev, mode );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetViewportExtEx( HDC hdc, INT x, INT y, LPSIZE size )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetViewportExtEx );
|
|
ret = physdev->funcs->pSetViewportExtEx( physdev, x, y, size );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetViewportOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetViewportOrgEx );
|
|
ret = physdev->funcs->pSetViewportOrgEx( physdev, x, y, pt );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetWindowExtEx( HDC hdc, INT x, INT y, LPSIZE size )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetWindowExtEx );
|
|
ret = physdev->funcs->pSetWindowExtEx( physdev, x, y, size );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWindowOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetWindowOrgEx );
|
|
ret = physdev->funcs->pSetWindowOrgEx( physdev, x, y, pt );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetViewportOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI OffsetViewportOrgEx( HDC hdc, INT x, INT y, LPPOINT pt)
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pOffsetViewportOrgEx );
|
|
ret = physdev->funcs->pOffsetViewportOrgEx( physdev, x, y, pt );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* OffsetWindowOrgEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI OffsetWindowOrgEx( HDC hdc, INT x, INT y, LPPOINT pt )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pOffsetWindowOrgEx );
|
|
ret = physdev->funcs->pOffsetWindowOrgEx( physdev, x, y, pt );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleViewportExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI ScaleViewportExtEx( HDC hdc, INT xNum, INT xDenom,
|
|
INT yNum, INT yDenom, LPSIZE size )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pScaleViewportExtEx );
|
|
ret = physdev->funcs->pScaleViewportExtEx( physdev, xNum, xDenom, yNum, yDenom, size );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* ScaleWindowExtEx (GDI32.@)
|
|
*/
|
|
BOOL WINAPI ScaleWindowExtEx( HDC hdc, INT xNum, INT xDenom,
|
|
INT yNum, INT yDenom, LPSIZE size )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC * dc = get_dc_ptr( hdc );
|
|
|
|
if (dc)
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pScaleWindowExtEx );
|
|
ret = physdev->funcs->pScaleWindowExtEx( physdev, xNum, xDenom, yNum, yDenom, size );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/****************************************************************************
|
|
* ModifyWorldTransform (GDI32.@)
|
|
*/
|
|
BOOL WINAPI ModifyWorldTransform( HDC hdc, const XFORM *xform, DWORD mode )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC *dc;
|
|
|
|
if (!xform && mode != MWT_IDENTITY) return FALSE;
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pModifyWorldTransform );
|
|
if (dc->GraphicsMode == GM_ADVANCED)
|
|
ret = physdev->funcs->pModifyWorldTransform( physdev, xform, mode );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetWorldTransform (GDI32.@)
|
|
*/
|
|
BOOL WINAPI SetWorldTransform( HDC hdc, const XFORM *xform )
|
|
{
|
|
BOOL ret = FALSE;
|
|
DC *dc;
|
|
|
|
if (!xform) return FALSE;
|
|
/* The transform must conform to (eM11 * eM22 != eM12 * eM21) requirement */
|
|
if (xform->eM11 * xform->eM22 == xform->eM12 * xform->eM21) return FALSE;
|
|
|
|
TRACE("eM11 %f eM12 %f eM21 %f eM22 %f eDx %f eDy %f\n",
|
|
xform->eM11, xform->eM12, xform->eM21, xform->eM22, xform->eDx, xform->eDy);
|
|
|
|
if ((dc = get_dc_ptr( hdc )))
|
|
{
|
|
PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSetWorldTransform );
|
|
if (dc->GraphicsMode == GM_ADVANCED)
|
|
ret = physdev->funcs->pSetWorldTransform( physdev, xform );
|
|
release_dc_ptr( dc );
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
|
|
/***********************************************************************
|
|
* SetVirtualResolution (GDI32.@)
|
|
*
|
|
* Undocumented on msdn.
|
|
*
|
|
* Changes the values of screen size in pixels and millimeters used by
|
|
* the mapping mode functions.
|
|
*
|
|
* PARAMS
|
|
* hdc [I] Device context
|
|
* horz_res [I] Width in pixels (equivalent to HORZRES device cap).
|
|
* vert_res [I] Height in pixels (equivalent to VERTRES device cap).
|
|
* horz_size [I] Width in mm (equivalent to HORZSIZE device cap).
|
|
* vert_size [I] Height in mm (equivalent to VERTSIZE device cap).
|
|
*
|
|
* RETURNS
|
|
* TRUE if successful.
|
|
* FALSE if any (but not all) of the last four params are zero.
|
|
*
|
|
* NOTES
|
|
* This doesn't change the values returned by GetDeviceCaps, just the
|
|
* scaling of the mapping modes.
|
|
*
|
|
* Calling with the last four params equal to zero sets the values
|
|
* back to their defaults obtained by calls to GetDeviceCaps.
|
|
*/
|
|
BOOL WINAPI SetVirtualResolution(HDC hdc, DWORD horz_res, DWORD vert_res,
|
|
DWORD horz_size, DWORD vert_size)
|
|
{
|
|
DC * dc;
|
|
TRACE("(%p %d %d %d %d)\n", hdc, horz_res, vert_res, horz_size, vert_size);
|
|
|
|
if(horz_res == 0 && vert_res == 0 && horz_size == 0 && vert_size == 0)
|
|
{
|
|
horz_res = GetDeviceCaps(hdc, HORZRES);
|
|
vert_res = GetDeviceCaps(hdc, VERTRES);
|
|
horz_size = GetDeviceCaps(hdc, HORZSIZE);
|
|
vert_size = GetDeviceCaps(hdc, VERTSIZE);
|
|
}
|
|
else if(horz_res == 0 || vert_res == 0 || horz_size == 0 || vert_size == 0)
|
|
return FALSE;
|
|
|
|
dc = get_dc_ptr( hdc );
|
|
if (!dc) return FALSE;
|
|
|
|
dc->virtual_res.cx = horz_res;
|
|
dc->virtual_res.cy = vert_res;
|
|
dc->virtual_size.cx = horz_size;
|
|
dc->virtual_size.cy = vert_size;
|
|
|
|
release_dc_ptr( dc );
|
|
return TRUE;
|
|
}
|