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    <p>Here's the code I use for loading images from disk.</p> <pre><code>// BMP, GIF, JPEG, PNG, TIFF, Exif, WMF, and EMF HBITMAP mLoadImg(WCHAR *szFilename) { HBITMAP result=NULL; Gdiplus::Bitmap* bitmap = new Gdiplus::Bitmap(szFilename,false); bitmap-&gt;GetHBITMAP(NULL, &amp;result); delete bitmap; return result; } </code></pre> <p><strong>Edit:</strong> Don't use GDI+ myself, other than for a few basic features. Whenever I use images, I generally want the smallest, fastest code possible - GDI does this job better imo.</p> <p>And here's the code ripped from a class that will display an image that has transparent pixels, complete with the class definition, so as to to (hopefully) avoid any ambiguity with class variables.</p> <pre><code>void CStaticImg::displayImage() { RECT myRect; BITMAP bm; HDC screenDC, memDC; HBITMAP oldBmp; BLENDFUNCTION bf; GetObject(mBmp, sizeof(bm), &amp;bm); bf.BlendOp = AC_SRC_OVER; bf.BlendFlags = 0; bf.SourceConstantAlpha = 0xff; bf.AlphaFormat = AC_SRC_ALPHA; screenDC = GetDC(mHwnd); GetClientRect(mHwnd, &amp;myRect); if (mBmp == NULL) FillRect(screenDC, &amp;myRect, WHITE_BRUSH); else { memDC = CreateCompatibleDC(screenDC); oldBmp = (HBITMAP)SelectObject(memDC, mBmp); AlphaBlend (screenDC, 0, 0, myRect.right,myRect.bottom, memDC, 0, 0, bm.bmWidth,bm.bmHeight, bf); SelectObject(memDC, oldBmp); DeleteDC(memDC); ReleaseDC(mHwnd, screenDC); } } class CStaticImg { public: CStaticImg(); ~CStaticImg(); void setImg(HBITMAP img); HBITMAP getImgCopy(); void attach(HWND tgt); void detach(); void setBkMode(bool transparent); protected: HWND mHwnd; HBITMAP mBmp; WNDPROC mOldWndProc; void displayImage(); virtual LRESULT CALLBACK WndProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); bool isBkgTransparent; private: // virtual LRESULT onPaint(); LRESULT onCreate(); static CStaticImg *GetObjectFromWindow(HWND hWnd); static LRESULT CALLBACK stWinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam); }; </code></pre>
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    1. PODouble Buffering an image with GDI+
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    1. PODouble Buffering an image with GDI+
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    1. COI'm sorry.. I somehow missed your reply! I tried your code, and it did not work? Here is what I tried: DrawImage(hdc, 0, 0, (mLoadImg((WCHAR*)"myimage.png"); DrawImage is a function that double buffers an hbitmap, and draws it to the screen!
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      1. USJames Diaz
    2. CONo stress mate. :) I'll fire up the compiler and check - I think the problem is in the way you pass the filename. Rather than casting a char* to a WCHAR*, you need to use the L (or possibly the TEXT) macro to ensure you're actually passing a wide string (i.e 2 bytes per char) Just gimme a few minutes, <arnoldVoice>I'll be back </arnoldVoice>
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    3. CO@JamesDiaz - yup, that'll be your problem. Consider that the following two have the same effect: (1) `mBmp = (HBITMAP) LoadImage(NULL, "bitmap32.bmp", IMAGE_BITMAP, 0,0, LR_LOADFROMFILE);` (2) `mBmp = mLoadImg(L"bitmap32.bmp");` **Note:** The L in front of the filename. :)
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