MemoryDC

Description

Short story: Provides a virtual canvas in memory for you to draw on; separates hBitmap from StdPicture for use with APIs.

Longer description from old site: click here.

To be edited...

Published

This sample, or the one from which it originally derived, was published (or at least peripherally mentioned) in the following article(s):

Work With Memory Bitmaps, Ask the VB Pro, VBPJ, April 2001

Soup Up Office VBA, Ask the VB Pro, VBPJ, June 2001

APIs Usage

This sample uses the following API calls:

Module Library Function

CMemoryDC.cls gdi32

olepro32
user32

BitBlt
CreateCompatibleBitmap
CreateCompatibleDC
DeleteDC
DeleteObject
GetObject
GetPixel
SelectObject
SetPixel
OleCreatePictureIndirect
GetDC
GetDesktopWindow
GetSysColor
ReleaseDC

Don't see what you're looking for? Here's a complete API cross-reference.

Module	Library	Function
CMemoryDC.cls	gdi32 olepro32 user32	BitBlt CreateCompatibleBitmap CreateCompatibleDC DeleteDC DeleteObject GetObject GetPixel SelectObject SetPixel OleCreatePictureIndirect GetDC GetDesktopWindow GetSysColor ReleaseDC

Download

Please, enjoy and learn from this sample. Include its code within your own projects, if you wish. But, in order to insure only the most recent code is available to all, I ask that you don't share the sample by any form of mass distribution.
Download MemoryDC.zip, 27Kb, Last Updated: Monday, July 1, 2002