Re: jpg to bmp from FrameCallbackProc without fileio

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#318

From: Hans Galema
Date: Mon, 17 Jan 2005 14:48

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Hans Galema wrote:

> does compile. And it assigns. So you could use the intern
> Bitmap in this way directly.

But you can even modify it. Here is my complete test:

void __fastcall TForm1::BitBtn1Click(TObject *Sender)
{
   TJPEGImage *JPEGImage = new TJPEGImage;

   JPEGImage->LoadFromFile ( ExtractFilePath ( ParamStr(0) ) + "PICT0003.jpg" );

   Graphics::TBitmap *Bitmap = new Graphics::TBitmap;

   //Bitmap->Assign ( JPEGImage); // works ok
   //Bitmap->Assign ( JPEGImage->Bitmap); // does not compile

   ((THackJPEGImage*)JPEGImage)->Bitmap->Canvas->TextOut ( 0, 0, "AAAA" );

   Bitmap->Assign ( ((THackJPEGImage*)JPEGImage)->Bitmap);

   Image1->Picture->Bitmap->Assign ( Bitmap );              \

   delete Bitmap;

   delete JPEGImage;
}

Hans.

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Subject: Re: jpg to bmp from FrameCallbackProc without fileio
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