How to remove window's edge

[Shahroozleon]

HI please tell me how to get ride of these edge on my QGraphicsView or any fram like widgets shown in this image.
thank you so much.

[sierdzio]

Remove layout margins (they default to 9 pixels).

[Shahroozleon]

@sierdzio said in How to remove window's edge:

layout margins

thanks so much

pLayout = new QVBoxLayout(this);

pLayout->setSpacing(0);

pLayout->setMargin(0);

// This is redundant with setMargin,
// which is deprecated
pLayout->setContentsMargins(0,0,0,0);

pLayout->addWidget(m_pLabel, 0, Qt::AlignTop);
pLayout->addWidget(m_pButton, 0, Qt::AlignTop);

setLayout(pLayout);