Re: GetPicture

[Software FX]

You can use the GetPicture method whether the chart is visible or not, the

chart must however have a size.

If you are using the DLL, you need to call CreateWnd before calling

GetPicture to give the chart a size, the window doesn't need to be visible.

To get a picture from the chart without creating a window (using the DLL),

you need to use the Paint method and draw to your own HDC containing a

bitmap.

Here is how, using the <#B>Paint method<#/B> you can obtain an image of the

chart without ever creating a window for it.

 HDC hScreenDC, hMemDC;

 HBITMAP hBmp,hOldBmp;

 RECT rc;

 SetRect(&rc,0,0,ImageWidth,ImageHeight);

 hScreenDC = GetDC(NULL);

 hMemDC = CreateCompatibleDC(hScreenDC);

 hBmp = CreateCompatibleBitmap(hScreenDC,rc.right,rc.bottom);

 hOldBmp = (HBITMAP) SelectObject(hMemDC,hBmp);

 // Draws the chart into memory (Bitmap)

 m_pChartFX->Paint((long)hMemDC,0,0,rc.right,rc.bottom,CPAINT_BKGND,0);

 // ******************

 // At this point, hBmp contains an image of the chart. Add your code that

stores or process this image HERE !

 // ******************

 ReleaseDC(NULL,hScreenDC);

 SelectObject(hMemDC,hOldBmp);

 DeleteDC(hMemDC);

 DeleteObject(hBmp);

Frank

SFX

"Jeff Weger" <jweger@vetronix.com> wrote in message

news:H7$U67JhAHA.1716@sfxserver.softwarefx.com...

> Does anyone know how to use the method GetPicture when the graph is not

> visible?

> Thanks.

>

>

>