Am 27.12.2010 um 21:41 schrieb Tomas Wilhelmsson: > Is it posible to make a BPictureButton Transparent somehow? If the bitmap contains transparency information (alpha values) setting the drawing and blending mode after BeginPicture(...) is required IIRC. view->SetDrawingMode(B_OP_ALPHA); view->SetBlendingMode(B_PIXEL_ALPHA, B_ALPHA_COMPOSITE); or to apply the alpha value from the high color to the bitmap when it is drawn: view->SetHighColor(0, 0, 0, alpha) view->SetDrawingMode(B_OP_ALPHA); view->SetBlendingMode(B_CONSTANT_ALPHA, B_ALPHA_COMPOSITE); Not sure if a picture overwrites the drawing modes when it is draw; if it does you probably want to save and restore the state using view->PushState() after BeginPicture and view->PopState() before EndPicture. > void BitmapToPicture(BView* view, BBitmap *bitmap, BPicture *pict) { > if (bitmap) { > view->BeginPicture(pict); > view->DrawBitmap(bitmap); > view->EndPicture(); > } > } Bye, Michael