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; var CopyDC: 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;
