mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
4.0 KiB
98 lines
4.0 KiB
//-------------------------------------------------------------------------//
|
|
// BmpRgn.h - Bitmap-to-Region transforms
|
|
//
|
|
// History:
|
|
// 01/31/2000 scotthan created
|
|
//-------------------------------------------------------------------------//
|
|
|
|
#ifndef __RGN_H__
|
|
#define __RGN_H__
|
|
//-------------------------------------------------------------------------//
|
|
// CreateBitmapRgn
|
|
//
|
|
// Creates a region based on an arbitrary bitmap, transparency-keyed on a
|
|
// RGB value within a specified tolerance. The key value is optional (-1 ==
|
|
// use the value of the first pixel as the key).
|
|
//
|
|
EXTERN_C HRESULT WINAPI CreateBitmapRgn(
|
|
HBITMAP hbm, int cxOffset, int cyOffset,
|
|
int cx, int cy, BOOL fAlphaChannel, int iAlphaThreshold, COLORREF rgbMask,
|
|
int nMaskTolerance, OUT HRGN *phrgn);
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// CreateScaledBitmapRgn
|
|
//
|
|
// Behaves in the same manner as CreateBitmapRgn,
|
|
// except builds a region based on a +scaled+ arbitrary bitmap.
|
|
EXTERN_C HRGN WINAPI CreateScaledBitmapRgn(
|
|
HBITMAP hbm, int cx, int cy, COLORREF rgbMask, int nMaskTolerance );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// CreateTextRgn
|
|
//
|
|
// Creates a region based on a text string in the indicated font.
|
|
//
|
|
EXTERN_C HRGN WINAPI CreateTextRgn( HFONT hf, LPCTSTR pszText );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// AddToCompositeRgn
|
|
//
|
|
// Wraps CombineRgn by managing composite creation and positioning
|
|
// the source region (which is permanently offset). Returns one of:
|
|
// NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR.
|
|
//
|
|
EXTERN_C int WINAPI AddToCompositeRgn(
|
|
HRGN* phrgnComposite, HRGN hrgnSrc, int cxOffset, int cyOffset );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// RemoveFromCompositeRgn
|
|
//
|
|
// Wraps CombineRgn by managing removal of rectangular region from
|
|
// an existing destination region. Returns one of:
|
|
// NULLREGION, SIMPLEREGION, COMPLEXREGION, ERROR.
|
|
//
|
|
EXTERN_C int WINAPI RemoveFromCompositeRgn( HRGN hrgnDest, LPCRECT prcRemove );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// CreateTiledRectRgn
|
|
//
|
|
// Returns a rectangular region composed of region tiles.
|
|
//
|
|
EXTERN_C HRGN WINAPI CreateTiledRectRgn(
|
|
HRGN hrgnTile, int cxTile, int cyTile, int cxBound, int cyBound );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// Region utilities:
|
|
//
|
|
EXTERN_C HRGN WINAPI _DupRgn( HRGN hrgnSrc );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// hit-testing
|
|
#define HTR_NORESIZE_USESEGCODE 0
|
|
#define HTR_NORESIZE_RETDEFAULT -1
|
|
struct HITTESTRGN
|
|
{
|
|
HRGN hrgn; // test region
|
|
POINT pt; // test point
|
|
WORD wSegCode; // raw grid code, in the form of HTTOP, HTLEFT, HTTOPLEFT, etc. This speeds calcs
|
|
WORD wDefault; // return code on hit failure.
|
|
BOOL fCaptionAtTop; // interpret hits in top grid segs as a caption hit.
|
|
UINT cxLeftMargin; // width of left resizing margin, HTR_NORESIZE_USESEGCODE, or HTR_NORESIZE_USEDEFAULTCODE
|
|
UINT cyTopMargin; // height of top resizing margin, HTR_NORESIZE_USESEGCODE, or HTR_NORESIZE_USEDEFAULTCODE
|
|
UINT cxRightMargin; // width of right resizing margin, HTR_NORESIZE_USESEGCODE, or HTR_NORESIZE_USEDEFAULTCODE
|
|
UINT cyBottomMargin;// height of bottom resizing margin, HTR_NORESIZE_USESEGCODE, or HTR_NORESIZE_USEDEFAULTCODE
|
|
};
|
|
|
|
EXTERN_C WORD WINAPI _DefaultHitCodeFromSegCode( BOOL fHasCaption, WORD wSegHTcode );
|
|
|
|
//-------------------------------------------------------------------------//
|
|
// Stretch/Tile rects from original region and create a new one
|
|
EXTERN_C HRESULT WINAPI _ScaleRectsAndCreateRegion(RGNDATA *pCustomRgnData,
|
|
const RECT *pBoundRect, MARGINS *pMargins, SIZE *pszSrcImage, HRGN *pHrgn);
|
|
|
|
//-------------------------------------------------------------------------//
|
|
#ifdef _DEBUG
|
|
void RegionDebug(HRGN hrgn);
|
|
#endif
|
|
|
|
#endif __RGN_H__
|