How to use TLMDCharSeq Buffer?

sleeterd · September 2014

I'm a C++ XE5 user, and purchased LMD Syntax Editor stand-alone.

I'm
replacing the visible text for large files on the TLMDEditView based on
a scroll event, and I'm looking for faster processing than I can
achieve by using

TLMDEditDocument->Lines->Strings[i]

The
help file suggest faster processing speeds for TLMDCharSeq by using
Buffer, BufferStart, Buffer. Is this a direction I should consider?

If so, I see the Delphi example in the help file and implemented a C++ version of this sub classing.

class TSegFromPtr : public TLMDCharSeq
{
private:
    PLMDChar FPtr;

protected:
    void __fastcall FillBuffer(int ABufferStart, int ABufferEnd)
    {
        int Bytes;
        PLMDChar Ptr;

        Bytes = (ABufferEnd-ABufferStart) * sizeof(TLMDChar);
        Ptr = FPtr + ABufferStart;
        Move((void*)Ptr,(void*)(Buffer[0]),Bytes);
        //System.Move(Ptr^, Buffer[0], Bytes);
    }

public:
    __fastcall TSegFromPtr(PLMDChar APtr, int ACount):TLMDCharSeq(256)
    {
        FPtr = APtr;
        FCount = ACount;
    }

};

How can I assign the pointer to the TLMDEditDocument or TLMDEditView on my form (if that's the next step)

TSegFromPtr *seq = ??

By the way, I would have submitted this at the forum, but I'm a new customer and I don't see that I have an invitation code.

Regards

David Sleeter

balabuev · October 2014

Hi,

You should use TLMDEditDocument.Chars property to retrieve whole text. And, TLMDEditDocument.InsertSeg or TLMDEditDocument.ReplaceSeg to change the text.

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How to use TLMDCharSeq Buffer?

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