How to load a png image in PictureControl?

[VCProgrammer]

hi all, i want to load a png image from resource in picture control. how can i do this. thanks.

[Lost User]

Do you mean via the LoadResource function[^]?

[yu jian]

#include "atlimage.h"

Image* m_pImage;

char *pStr = strTempIMGPath.GetBuffer(0);
int size = MultiByteToWideChar(GetACP(), 0, pStr, -1, NULL, 0);
MultiByteToWideChar(GetACP(), 0, pStr, -1, szFile, size);
strTempIMGPath.ReleaseBuffer();
if (m_pImage != NULL)
{
delete m_pImage;
m_pImage = NULL;
}
m_pImage = new Image(szFile, FALSE);

void CPNGButton::OnPaint()
{
CPaintDC dc(this);
Graphics graphics(dc.m_hDC);
if(m_pImage != NULL && (m_pImage->GetLastStatus() == Gdiplus::Status::Ok))
{
graphics.DrawImage(m_pImage, 0, 0, m_pImage->GetWidth(), m_pImage->GetHeight());
}
}

[VCProgrammer]

i want to load png file from Resources not with using file path of any selected file location.

[yu jian]

I event tried to load the PNG file from the resource. But I failed. If you find the way, please tell me.

[VCProgrammer]

LPCTSTR szResourceName =MAKEINTRESOURCE(IDB_PNG1);
LPCTSTR szResourceType=_T("PNG");
HMODULE hresModule=AfxGetResourceHandle();

HRSRC hPicture = FindResource(hresModule,szResourceName,szResourceType);
HGLOBAL hResData;

// Load the dialog box into global memory.
if (!hPicture || !(hResData = LoadResource(hresModule,hPicture)))
{
	TRACE(\_T("Load (resource): Error loading resource %s\\n"),szResourceName);
	return ;
};
DWORD dwSize = SizeofResource(hresModule,hPicture);	

// hResData is not the real HGLOBAL (we can't lock it)
// let's make it real

HGLOBAL hGlobal = GlobalAlloc(GMEM\_MOVEABLE | GMEM\_NODISCARD,dwSize);
if (!hGlobal)
{
	TRACE(\_T("Load (resource): Error allocating memory\\n"));
	FreeResource(hResData);
	return ;
};

char \*pDest = reinterpret\_cast (GlobalLock(hGlobal));
char \*pSrc = reinterpret\_cast (LockResource(hResData));
if (!pSrc || !pDest)
{
	TRACE(\_T("Load (resource): Error locking memory\\n"));
	GlobalFree(hGlobal);
	FreeResource(hResData);
	return  ;
};

//IStream\* pStream;
ULONG ulWritten=0;
ulWritten = 0;

CopyMemory(pDest,pSrc,dwSize);

HRESULT hr = ::CreateStreamOnHGlobal(hGlobal,FALSE,&pStream);
pStream->Write(pDest, dwSize, &ulWritten);

FreeResource(hResData);
GlobalUnlock(hGlobal);

Bitmap oBmp(pStream,0);

m\_Image\_ics.Load(pStream);
HDC memdc;
CRect rect;
this->GetClientRect(&rect);     
//=====
HBITMAP hBmp;
oBmp.GetHBITMAP(0, &hBmp);
::SendMessage(png\_bnr->GetSafeHwnd(),STM\_SETIMAGE,IMAGE\_BITMAP,(LPARAM)hBmp);