symbian 显示位图和SVG图

核心提示：AknIconUtils::SetSize(iSoundSvg, TSize(50,50), EAspectRatioNotPreserved);// 创建离屏位图、位图设备、位图设备上下文iOffScreenBitmap = new ( ELeave ) CFbsBitmap(); //创建一个空的位图Cleanup

AknIconUtils::SetSize(iSoundSvg, TSize(50,50), EAspectRatioNotPreserved);

// 创建离屏位图、位图设备、位图设备上下文

iOffScreenBitmap = new ( ELeave ) CFbsBitmap(); //创建一个空的位图

CleanupStack::PushL( iOffScreenBitmap );

User::LeaveIfError( iOffScreenBitmap->Create( Rect().Size(),EColor4K ) ); //位图的尺寸设置 成与程序客户区的尺寸相同

CleanupStack::Pop();

iOffScreenBitmapDevice = CFbsBitmapDevice::NewL(iOffScreenBitmap ); //创建一个位图设备

iOffScreenBitmapDevice->CreateContext( iOffScreenBitmapGc ); //创建位图设备的位图设备上下文

3)在析构函数中加入

delete iOffScreenBitmapGc;

iOffScreenBitmapGc = NULL;

delete iOffScreenBitmapDevice;

iOffScreenBitmapDevice = NULL;

delete iOffScreenBitmap;

iOffScreenBitmap = NULL;

4)在位图上绘制图形

//清除位图设备下文中的背景

iOffScreenBitmapGc->SetPenStyle( CGraphicsContext::ENullPen );

iOffScreenBitmapGc->SetBrushColor( KRgbGray );

iOffScreenBitmapGc->SetBrushStyle( CGraphicsContext::ESolidBrush );

iOffScreenBitmapGc->DrawRect( aRect );

iOffScreenBitmapGc->SetPenStyle(CGraphicsContext::ESolidPen);

iOffScreenBitmapGc->DrawEllipse(Rect());

iOffScreenBitmapGc->BitBlt(aRect.iTl,iSoundSvg);

//负责位图中已经绘制好的图形的到程序窗口客户区中

CWindowGc& gc = SystemGc();

gc.BitBlt( Rect().iTl,iOffScreenBitmap );

效果

本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/linzhiji/archive/2010/01/29/5270522.aspx