有什么方法来绘制Webbrowser内容到特定的DC吗？ [英] Is there any way to draw Webbrowser content to a specific DC?

问题描述

这些天，我尝试在我的程序中创建一个hiden WebBrowser控件，并使用IViewObject接口绘制到我的自定义DC。

结果很好，我got所有我想要的内容，但绘制速度是不能接受的，特别是一些复杂的网页包含Flash对象，每个绘制到DC成本超过100毫秒。所以我绘制的闪光对象不光滑。

有快速的方法可以将控制权绘制到我的特定DC吗？

my code sinpet就像这样：

  // hCompDc是一个CompatibleDC，选择一个CompatibleBitmap。 
 RECTL imageRect = {0，0，nWidth，nHeight}; 
 pHtmlDocument2-> QueryInterface（IID_IViewObject，（void **）& pViewObject）; 
 pViewObject-> Draw（DVASPECT_CONTENT，-1，NULL，NULL，NULL，hCompDc，NULL，& imageRect，NULL，0）;谢谢您阅读这个问题。
 
 
 
  
 >等待你的答案〜
解决方案
没有其他方法可以做到这一点。您使用的组件（IE，Flash等）都没有设计为使用这种方式。如果绘制时间是一个问题，你必须在一个单独的线程和同步。
 
These days, I tries to create a hiden WebBrowser control in my program, and Using the IViewObject interface draw to my custom DC.

The result is fine, I got All the content I want, but the Draw speed is unacceptable, especially some complex web pages which contains Flash objects, Each Draw to DC cost more than 100 ms. So the flash object I drew is not smooth. 

Is there a fast way to draw the control to my a specific DC?

my code sinpet is like this:
//hCompDc is a CompatibleDC which select a CompatibleBitmap.
RECTL imageRect = {0, 0, nWidth, nHeight};
pHtmlDocument2->QueryInterface(IID_IViewObject, (void **)&pViewObject);
pViewObject->Draw(DVASPECT_CONTENT, -1, NULL, NULL, NULL, hCompDc, NULL, &imageRect, NULL, 0);
Thank you for reading this question.

Waiting for your answers~ 
解决方案
There is no other way to do this.  None of the components you're using--IE, Flash, etc--were designed to be used this way.  If draw time is an issue, you have to do it on a separate thread and synchronize.

                        
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