Re: CImage read and write to memory files
On 18 Aug., 11:35, phil oakleaf <n...@oakleafsoftware.co.uk> wrote:
I am using the GDI+ Image class - but can change that to the MFC CImage
if need be.
At the moment I only seem to be able to save and load these to external
Is there a way that I hold these images in a single block of memory
instead. That way I can store the memory in my own filing system.
Hope someone can help with this
Here a sample for loading an image from resource, that might be
BOOL LoadFromResource(HINSTANCE hInstance, LPCTSTR szResourceName,
LPCTSTR szResourceType, CImage& img)
HRSRC hResource = ::FindResource(hInstance, szResourceName,
DWORD imageSize = ::SizeofResource(hInstance, hResource);
const void* pResourceData = ::LockResource(::LoadResource(hInstance,
HGLOBAL hBuffer = ::GlobalAlloc(GMEM_MOVEABLE, imageSize);
HRESULT hr = E_FAIL;
void* pBuffer = ::GlobalLock(hBuffer);
::CopyMemory(pBuffer, pResourceData, imageSize);
IStream* pStream = NULL;
if (::CreateStreamOnHGlobal(hBuffer, FALSE, &pStream) == S_OK)
hr = img.Load(pStream);
hBuffer = NULL;
return (hr == S_OK);
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