function GetRichEditOle(hRichEdit: THandle): IRichEditOle;
begin
SendMessage(hRichEdit, EM_GETOLEINTERFACE, 0, Longint(@Result));
end;
function GetImage(Bitmap: TBitmap): HBITMAP;
var
Dest: HBitmap;
DC, MemDC: HDC;
OldBitmap: HBITMAP;
begin
DC := GetDC(0);
MemDC := CreateCompatibleDC(DC);
try
Dest := CreateCompatibleBitmap(DC, Bitmap.Width, Bitmap.Height);
OldBitmap := SelectObject(MemDC, Dest);
BitBlt(MemDC, 0, 0, Bitmap.Width, Bitmap.Height, Bitmap.Canvas.Handle, 0, 0,
SRCCOPY);
SelectObject(MemDC, OldBitmap);
finally
DeleteDC(MemDC);
ReleaseDC(0, DC);
end;
Result := Dest;
end;
function TBitmapOle.GetData(const formatetcIn: TFormatEtc; out medium:
TStgMedium): HResult; stdcall;
begin
medium.tymed := TYMED_GDI;
medium.hBitmap := OleDuplicateData(FStgm.hBitmap, CF_BITMAP, 0);
medium.unkForRelease := nil;
if medium.hBitmap = 0 then
Result := E_HANDLE
else
Result := S_OK;
end;
function TBitmapOle.GetDataHere(const formatetc: TFormatEtc; out medium:
TStgMedium): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.QueryGetData(const formatetc: TFormatEtc): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.GetCanonicalFormatEtc(const formatetc: TFormatEtc;
out formatetcOut: TFormatEtc): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.SetData(const formatetc: TFormatEtc; var medium: TStgMedium;
fRelease: BOOL): HResult; stdcall;
begin
FStgm := medium;
FFmEtc := formatetc;
Result := S_OK;
end;
function TBitmapOle.EnumFormatEtc(dwDirection: Longint; out enumFormatEtc:
IEnumFormatEtc): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.DAdvise(const formatetc: TFormatEtc; advf: Longint;
const advSink: IAdviseSink; out dwConnection: Longint): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.DUnadvise(dwConnection: Longint): HResult; stdcall;
begin
Result := E_NOTIMPL;
end;
function TBitmapOle.EnumDAdvise(out enumAdvise: IEnumStatData): HResult;
stdcall;
begin
Result := E_NOTIMPL;
end;
procedure TBitmapOle.GetOleObject(OleSite: IOleClientSite;
Storage: IStorage; var OleObject: IOleObject);
begin
OleCheck(OleCreateStaticFromData(Self, IID_IOleObject,
OLERENDER_FORMAT, @FFmEtc, OleSite, Storage, OleObject));
end;
procedure TBitmapOle.SetBitmap(hBitmap: HBITMAP);
var
Stgm: TStgMedium;
FmEtc: TFormatEtc;
begin
Stgm.tymed := TYMED_GDI; // Storage medium = HBITMAP handle
Stgm.hBitmap := hBitmap;
Stgm.unkForRelease := nil;
FmEtc.cfFormat := CF_BITMAP; // Clipboard format = CF_BITMAP
FmEtc.ptd := nil; // Target Device = Screen
FmEtc.dwAspect := DVASPECT_CONTENT; // Level of detail = Full content
FmEtc.lindex := -1; // Index = Not applicaple
FmEtc.tymed := TYMED_GDI; // Storage medium = HBITMAP handle
type
_ReObject = record
cbStruct: DWORD; { Size of structure }
cp: ULONG; { Character position of object }
clsid: TCLSID; { class ID of object }
poleobj: IOleObject; { OLE object interface }
pstg: IStorage; { Associated storage interface }
polesite: IOleClientSite; { Associated client site interface }
sizel: TSize; { Size of object (may be 0,0) }
dvAspect: Longint; { Display aspect to use }
dwFlags: DWORD; { object status flags }
dwUser: DWORD; { Dword for user's use }
end;
TReObject = _ReObject;
TCharRange = record
cpMin: Integer;
cpMax: Integer;
end;
// Flags to specify which interfaces should be returned in the structure above
REO_GETOBJ_NO_INTERFACES = $00000000;
REO_GETOBJ_POLEOBJ = $00000001;
REO_GETOBJ_PSTG = $00000002;
REO_GETOBJ_POLESITE = $00000004;
REO_GETOBJ_ALL_INTERFACES = $00000007;
// Place object at selection
REO_CP_SELECTION = $FFFFFFFF;
// Use character position to specify object instead of index
REO_IOB_SELECTION = $FFFFFFFF;
REO_IOB_USE_CP = $FFFFFFFF;
// object flags
REO_NULL = $00000000; // No flags
REO_READWRITEMASK = $0000003F; // Mask out RO bits
REO_DONTNEEDPALETTE = $00000020; // object doesn't need palette
REO_BLANK = $00000010; // object is blank
REO_DYNAMICSIZE = $00000008; // object defines size always
REO_INVERTEDSELECT = $00000004; // object drawn all inverted if sel
REO_BELOWBASELINE = $00000002; // object sits below the baseline
REO_RESIZABLE = $00000001; // object may be resized
REO_LINK = $80000000; // object is a link (RO)
REO_STATIC = $40000000; // object is static (RO)
REO_SELECTED = $08000000; // object selected (RO)
REO_OPEN = $04000000; // object open in its server (RO)
REO_INPLACEACTIVE = $02000000; // object in place active (RO)
REO_HILITED = $01000000; // object is to be hilited (RO)
REO_LINKAVAILABLE = $00800000; // Link believed available (RO)
REO_GETMETAFILE = $00400000; // object requires metafile (RO)
// flags for IRichEditOle::GetClipboardData(),
// IRichEditOleCallback::GetClipboardData() and
// IRichEditOleCallback::QueryAcceptData()
RECO_PASTE = $00000000; // paste from clipboard
RECO_DROP = $00000001; // drop
RECO_COPY = $00000002; // copy to the clipboard
RECO_CUT = $00000003; // cut to the clipboard
RECO_DRAG = $00000004; // drag