microsoft / microsoft/Windows-classic-samples
Exception thrown: read access violation in ListViewSample
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Description
Windows-classic-samples/tree/main/Samples/Win7Samples/multimedia/Direct2D)/ListViewSample/
Exception thrown: read access violation.
this was 0x9B6800B0.
HRESULT ListViewApp::CreateDeviceResources()
{
HRESULT hr = S_OK;
if (!m_pRT) <<<------------------------------------------------- Exception at this line in Visual Studio 2015/2019
{
RECT rc;
GetClientRect(m_d2dHwnd, &rc);
D2D1_SIZE_U size = D2D1::SizeU(
rc.right - rc.left,
rc.bottom - rc.top
);
//create a D2D render target
hr = m_pD2DFactory->CreateHwndRenderTarget(
D2D1::RenderTargetProperties(),
D2D1::HwndRenderTargetProperties(m_d2dHwnd, size),
&m_pRT
);
if (SUCCEEDED(hr))
{
//create a black brush
hr = m_pRT->CreateSolidColorBrush(
D2D1::ColorF(D2D1::ColorF::Black),
&m_pBlackBrush
);
}
if (SUCCEEDED(hr))
{
hr = m_pRT->CreateBitmap(
D2D1::SizeU(msc_atlasWidth, msc_atlasHeight),
D2D1::BitmapProperties(D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED)),
&m_pBitmapAtlas
);
}
if (SUCCEEDED(hr))
{
hr = CreateBindCtx(0, &m_pBindContext);
}
if (SUCCEEDED(hr))
{
hr = LoadDirectory();
}
}
return hr;
}
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\WinSxS\amd64_microsoft.windows.common-controls_6595b64144ccf1df_6.0.17763.2686_none_de755d285347a0fe\comctl32.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\TextInputFramework.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\CoreMessaging.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\CoreUIComponents.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\ntmarta.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\WinTypes.dll'.
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\WinTypes.dll'.
'ListViewSample.exe' (Win32): Unloaded 'C:\Windows\System32\WinTypes.dll'
'ListViewSample.exe' (Win32): Loaded 'C:\Windows\System32\WinTypes.dll'.
'ListViewSample.exe' (Win32): Unloaded 'C:\Windows\System32\WinTypes.dll'
Exception thrown: read access violation.
this was 0x9B6800B0.
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First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Start in Windows-classic-samples/tree/main/Samples/Win7Samples/multimedia/Direct2D)/ListViewSample/ and inspect ListViewApp::CreateDeviceResources(). Reproduce the read access violation in Visual Studio at the marked line, then trace the failing object state and verify that the sample runs without the exception.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- cpp
- Domain
- computer-graphics, desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Needs clarification
- Newbie friendliness
- 25/100