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g_bMove := False;

procedure MyPrcCbMotionDetect(lnCardID : Integer; bMove : Integer; Reserved : Integer);stdcall;
begin
    If Not g_bMove Then
    begin
        g_bMove := True;

        ShowMessage('¶¯Ì¬¼ì²â³É¹¦,×¥Åĵ½: ' + g_strPicturePath + 'motion.bmp');
        formMain.SDK30001.SaveImageToBmp(g_strPicturePath + 'motion.bmp', 1, False)
    end
end;

procedure TformMain.btnStartMDClick(Sender: TObject);
    var
    nDetectWidth : Integer;
    nDetectHeight : Integer;
    nDetectBlocks : Integer;
    pAreaMap : WideString;
begin
    nDetectWidth := g_nCapWidth div 16;
    nDetectHeight := g_nCapHeight div 16;
    nDetectBlocks := nDetectWidth * nDetectHeight;
    pAreaMap := StringOfChar(WideChar(48), nDetectBlocks);
    SDK30001.EnableMotionDetect(pAreaMap, nDetectBlocks, 10, Integer(Addr(MyPrcCbMotionDetect)));
end;


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C/C++ code:
void __fastcall TformMain::btnStartMDClick( TObject *Sender)
{
int nDe


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