Solved

How to save what I had drawn on a window to LPPICTUREDISP?

Posted on 1997-12-21
1
313 Views
Last Modified: 2013-11-19
I had drawn some lines on a window, how do I copy the picture to LPPICTUREDISP.

0
Comment
Question by:stl
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
1 Comment
 
LVL 7

Accepted Solution

by:
galkin earned 100 total points
ID: 1312799
You must create memory DC and compatible bitmap. Select this bitmap into DC, force your window to draw itself on this memory DC. Then you must construct CPictureHolder object and use its CreateFromBitmap function passing bitmap you drew on(previously deselected it from memory DC of cause).Then you can get dispatch interface by CPictureHolder::GetPictureDispatch()

CDC memDC;
CDC *pDC = GetDC();
memDC.CreateCompatibleDC(pDC);
CBitmap bitmap;
CRect rc;
GetWindowRect(&rc);
bitmap.CreateCompatibleBitmap(pDC, rc.Width(), rc.Height());
CBitmap *pOldBitmap = (CBitmap *)memDC.SelectObject(&bitmap);
//here you must draw your window onto memory DC. If your window //implement WM_PRINT message so you can send this message to //your window passing memory DC handle as WPARAM, otherwise
// you must explicity draw window
memDC.SelectObject(pOldBitmap);
ReleaseDC(pDC);

CPictureHolder pictureHolder;
pictureHolder.CreateFromBitmap(&bitmap);

LPPICTUREDISP lpPictureDisp = pictureHolder.GetPictureDispatch();
0

Featured Post

Technology Partners: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Introduction: Ownerdraw of the grid button.  A singleton class implentation and usage. Continuing from the fifth article about sudoku.   Open the project in visual studio. Go to the class view – CGridButton should be visible as a class.  R…
Exception Handling is in the core of any application that is able to dignify its name. In this article, I'll guide you through the process of writing a DRY (Don't Repeat Yourself) Exception Handling mechanism, using Aspect Oriented Programming.
This video will show you how to get GIT to work in Eclipse.   It will walk you through how to install the EGit plugin in eclipse and how to checkout an existing repository.
Monitoring a network: how to monitor network services and why? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the philosophy behind service monitoring and why a handshake validation is critical in network monitoring. Software utilized …

717 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question