From fa28b5eac2c707d2274a1a826e4f59cca6a85ebd Mon Sep 17 00:00:00 2001 From: Huw Davies Date: Mon, 19 May 2003 19:03:19 +0000 Subject: [PATCH] GetRandomRgn(...,1) returns the current clipping rgn. Moved GetRandomRgn and the MetaRgn functions to objects/clipping.c. --- include/wingdi.h | 3 ++ objects/clipping.c | 74 ++++++++++++++++++++++++++++++++++++++++++++++ objects/region.c | 72 ++------------------------------------------ 3 files changed, 80 insertions(+), 69 deletions(-) diff --git a/include/wingdi.h b/include/wingdi.h index d2a0f92781d..ef4f6f52c26 100644 --- a/include/wingdi.h +++ b/include/wingdi.h @@ -1479,6 +1479,9 @@ typedef struct tagEXTLOGPEN #define RGN_COPY 5 #define RGN_MIN RGN_AND #define RGN_MAX RGN_COPY + +#define SYSRGN 4 + /* Device contexts */ /* Polygon modes */ diff --git a/objects/clipping.c b/objects/clipping.c index de3d4776760..7cd5dba27fd 100644 --- a/objects/clipping.c +++ b/objects/clipping.c @@ -497,3 +497,77 @@ INT16 WINAPI RestoreVisRgn16( HDC16 hdc16 ) GDI_ReleaseObj( hdc ); return ret; } + + +/*********************************************************************** + * GetRandomRgn [GDI32.@] + * + * NOTES + * This function is documented in MSDN online for the case of + * dwCode == SYSRGN (4). + * + * For dwCode == 1 it should return the clip region + * 2 " " " the meta region + * 3 " " " the intersection of the clip with + * the meta region (== 'Rao' region). + * + * See http://www.codeproject.com/gdi/cliprgnguide.asp + */ +INT WINAPI GetRandomRgn(HDC hDC, HRGN hRgn, DWORD dwCode) +{ + switch (dwCode) + { + case SYSRGN: /* == 4 */ + { + DC *dc = DC_GetDCPtr (hDC); + if (!dc) return -1; + + CombineRgn (hRgn, dc->hVisRgn, 0, RGN_COPY); + GDI_ReleaseObj( hDC ); + /* + * On Windows NT/2000, + * the region returned is in screen coordinates. + * On Windows 95/98, + * the region returned is in window coordinates + */ + if (!(GetVersion() & 0x80000000)) + { + POINT org; + GetDCOrgEx(hDC, &org); + OffsetRgn(hRgn, org.x, org.y); + } + return 1; + } + + case 1: /* clip region */ + return GetClipRgn (hDC, hRgn); + + default: + WARN("Unknown dwCode %ld\n", dwCode); + return -1; + } + + return -1; +} + + +/*********************************************************************** + * GetMetaRgn (GDI32.@) + */ +INT WINAPI GetMetaRgn( HDC hdc, HRGN hRgn ) +{ + FIXME( "stub\n" ); + + return 0; +} + + +/*********************************************************************** + * SetMetaRgn (GDI32.@) + */ +INT WINAPI SetMetaRgn( HDC hdc ) +{ + FIXME( "stub\n" ); + + return ERROR; +} diff --git a/objects/region.c b/objects/region.c index 0adf6f9243d..8c66eae5818 100644 --- a/objects/region.c +++ b/objects/region.c @@ -600,11 +600,12 @@ INT WINAPI GetRgnBox( HRGN hrgn, LPRECT rect ) if (obj) { INT ret; - TRACE(" %p\n", hrgn ); rect->left = obj->rgn->extents.left; rect->top = obj->rgn->extents.top; rect->right = obj->rgn->extents.right; rect->bottom = obj->rgn->extents.bottom; + TRACE("%p (%ld,%ld-%ld,%ld)\n", hrgn, + rect->left, rect->top, rect->right, rect->bottom); ret = get_region_type( obj ); GDI_ReleaseObj(hrgn); return ret; @@ -624,7 +625,7 @@ HRGN WINAPI CreateRectRgn(INT left, INT top, INT right, INT bottom) if (!(hrgn = REGION_CreateRegion(RGN_DEFAULT_RECTS))) return 0; - TRACE("\n"); + TRACE("%d,%d-%d,%d\n", left, top, right, bottom); SetRectRgn(hrgn, left, top, right, bottom); return hrgn; } @@ -2706,70 +2707,3 @@ HRGN WINAPI CreatePolygonRgn( const POINT *points, INT count, { return CreatePolyPolygonRgn( points, &count, 1, mode ); } - - -/*********************************************************************** - * GetRandomRgn [GDI32.@] - * - * NOTES - * This function is documented in MSDN online - */ -INT WINAPI GetRandomRgn(HDC hDC, HRGN hRgn, DWORD dwCode) -{ - switch (dwCode) - { - case 4: /* == SYSRGN ? */ - { - DC *dc = DC_GetDCPtr (hDC); - OSVERSIONINFOA vi; - POINT org; - - if (!dc) return -1; - CombineRgn (hRgn, dc->hVisRgn, 0, RGN_COPY); - /* - * On Windows NT/2000, - * the region returned is in screen coordinates. - * On Windows 95/98, - * the region returned is in window coordinates - */ - vi.dwOSVersionInfoSize = sizeof(vi); - if (GetVersionExA( &vi ) && vi.dwPlatformId == VER_PLATFORM_WIN32_NT) - GetDCOrgEx(hDC, &org); - else - org.x = org.y = 0; - OffsetRgn (hRgn, org.x, org.y); - GDI_ReleaseObj( hDC ); - return 1; - } -/* case 1: - return GetClipRgn (hDC, hRgn); -*/ - default: - WARN("Unknown dwCode %ld\n", dwCode); - return -1; - } - - return -1; -} - - -/*********************************************************************** - * GetMetaRgn (GDI32.@) - */ -INT WINAPI GetMetaRgn( HDC hdc, HRGN hRgn ) -{ - FIXME( "stub\n" ); - - return 0; -} - - -/*********************************************************************** - * SetMetaRgn (GDI32.@) - */ -INT WINAPI SetMetaRgn( HDC hdc ) -{ - FIXME( "stub\n" ); - - return ERROR; -}