Help! Can't draw GDIplus bitmap from HBITMAP

[indiocolifa]

My problem is that I want to draw some ownerdrawn controls on a GDI+ graphics surface.

My approach is:

1. I've declared a global object as:

extern Gdiplus::Bitmap		*pBmpOdElem;

2. I setup an empty bitmap with:

void createGdiplusObj(void)
{
	pBmpOdElem = new Bitmap(50,50,PixelFormatDontCare);
}

3. I try to draw onto the bitmap using the pBmpOdElem pointer:

BOOL OwnDrawProc (WPARAM wparam, LPARAM lparam)
{
    HBITMAP				hBitmap = 0;
    LPDRAWITEMSTRUCT	lpDrawItem = (LPDRAWITEMSTRUCT)lparam;
    int					x =  lpDrawItem->rcItem.top;
    int					y =  lpDrawItem->rcItem.left;
    Graphics			gr(lpDrawItem->hDC);
    UINT				uiSelect = lpDrawItem->itemState & ODS_SELECTED;

...

	pBmpOdElem->FromHBITMAP(hBitmap, NULL);
    gr.DrawImage (pBmpOdElem, x, y, pBmpOdElem->GetWidth(), pBmpOdElem->GetHeight()); 
}

and nothings happens...

My previous approach to the problem was creating a Bitmap object in the ownerdrawn procedure and draw it accordingly. This worked but I dont want to create a Bitmap object every time the painting routine gets called... it's not efficient.

Any help with managing those GDI+ ptrs?

thank you.

Hernan

[indiocolifa]

don't care...

I fixed it with the following line

    gr.DrawImage (pBmpOdElem->FromHBITMAP(hBitmap,0), x, y, pBmpOdElem->GetWidth(), pBmpOdElem->GetHeight());