不只是可以显示png，jpg，bmp等等都可以，gif也行，不过只能显示单帧。
一种方法是用IImagingFactory 中的CreateImageFromFile
先看看msdn：
This method lets an application create a decoded image object from a file.
Syntax
Parameters
filename[in] A WCHAR array containing the name of the source file.
image
[out] A pointer to the resultingIImageinterface pointer.
Return Value
If successful, this method returns S_OK.
This method may return E_POINTER if it fails.
Remarks
When the decoded image object is created, it only keeps a reference to the external data source and does not immediately decode the image. The decoded image opens the file in read-only mode and allows shared-read access to it.
Be aware that decoded image objects are read-only. In particular, you cannot modify the image data. However, you can display it onto a destination graphics context or push its data into an image sink. For more information, seeIImage.
Requirements
OS Versions:Windows CE 5.0 and later.
Header:Imaging.h.
Link Library:Imaging.
所以很简单了
/**************************************************************************************函数名称ShowPng*函数介绍显示png图片*入口参数constWCHAR*filename,//文件路径* CRect*pRect, //显示区域* CDC*pDc, //dc*出口参数无*返回值 void************************************************************************************/voidShowPng(constWCHAR*filename,CRect*pRect,CDC*pDc){IImagingFactory*pImageFactory=NULL;IImage*pImage=NULL;HRESULThrCreInstance=CoCreateInstance(CLSID_ImagingFactory,NULL,CLSCTX_INPROC_SERVER,IID_IImagingFactory,(void**)&pImageFactory);HRESULThrLoadFile=pImageFactory->CreateImageFromFile(filename,&pImage);if(S_OK!=hrCreInstance||S_OK!=hrLoadFile){AfxMessageBox(L"加载图片失败！！！");return;}pImage->Draw(pDc->GetSafeHdc(),pRect,NULL);pImage->Release();pImageFactory->Release();}
注意:
#include<Imaging.h>
还有另外一种方法：
就是用SHLoadImageFile函数。
先看msdn：
This function reads an image file, decompresses it, and returns a handle to a bitmap in memory.
Syntax
Parameters
pszFileName[in] The name of the image file to be loaded.
Return Value
A handle to a bitmap if successful, NULL otherwise.
Remarks
This function converts files of several types, including GIF (Graphics Interchange Format), PNG (Portable Network Graphics), JPG (Joint Photographic Experts Group), ICO (icon), and BMP (bitmap) file formats. Other image file types may be supported if the correct decoder is installed.
When you no longer need the bitmap, call theDeleteObjectfunction to delete it.
Requirements
PocketPC:Windows Mobile and later.
OS Versions:Windows CE .NET 4.0 and later.
Header:Declared in Aygshell.h.
Library:Use Aygshell.lib.
/**************************************************************************************函数名称ShowPic*函数介绍显示png图片*入口参数constWCHAR*filename,//文件路径*CRect*pRect,//显示区域*CDC*pDc,//dc*出口参数无*返回值void************************************************************************************/voidShowPic(constWCHAR*filename,CRect*pRect,CDC*pDc){CDCdccom;dccom.CreateCompatibleDC(pDc);HBITMAPhbitmap=SHLoadImageFile(filename);CBitmap*bk,pp;bk=pp.FromHandle(hbitmap);BITMAPbitmap;bk->GetBitmap(&bitmap);CBitmap*pOldbmp=dccom.SelectObject(bk);pDc->StretchBlt(0,0,pRect->Width(),pRect->Height(),&dccom,0,0,bitmap.bmWidth,bitmap.bmHeight,SRCCOPY);}
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