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Как копировать и вставлять Bitmap через буфер обмена?
Некоторые функции для копирования и вставки Bitmap-объектов через буфер обмена.
function CopyClipToBuf(DC: HDC; Left, Top, Width, Height: Integer; Rop: LongInt;
varCopyDC: HDC; var CopyBitmap: HBitmap): Boolean;
var
TempBitmap: HBitmap;
begin
Result := False;
CopyDC := 0;
CopyBitmap := 0;
if DC <> 0 then
begin
CopyDC := CreateCompatibleDC(DC);
if CopyDC <> 0 then
begin
CopyBitmap := CreateCompatibleBitmap(DC, Width, Height);
if CopyBitmap <> 0 then
begin
TempBitmap := CopyBitmap;
CopyBitmap := SelectObject(CopyDC, CopyBitmap);
Result := BitBlt(CopyDC, 0, 0,
Width, Height, DC,
Left, Top, Rop);
CopyBitmap := TempBitmap;
end;
end;
end;
end;
function CopyBufToClip(DC: HDC; var CopyDC: HDC; var CopyBitmap: HBitmap;
Left, Top, Width, Height: Integer;
Rop: LongInt; DeleteObjects: Boolean): Boolean;
var
TempBitmap: HBitmap;
begin
Result := False;
if (DC <> 0) and(CopyDC <> 0) and
(CopyBitmap <> 0) then
begin
TempBitmap := CopyBitmap;
CopyBitmap := SelectObject(DC, CopyBitmap);
Result := BitBlt(DC, Left, Top,
Width, Height, CopyDC,
0, 0, Rop);
CopyBitmap := TempBitmap;
if DeleteObjects then
begin
DeleteDC(CopyDC);
DeleteObject(CopyBitmap);
end;
end;
end;
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