Visual FoxPro 6.0 Sample: Using a PictureClip Control to Animate in Visual FoxPro (260340)


The information in this article applies to:

  • Microsoft Visual FoxPro for Windows 5.0
  • Microsoft Visual FoxPro for Windows 5.0a
  • Microsoft Visual FoxPro for Windows 6.0
This article was previously published under Q260340

SUMMARY

VFPAnimate.exe is a sample application that illustrates the use of an ActiveX PictureClip control to provide animation in a Visual FoxPro application.

MORE INFORMATION

The following file is available for download from the Microsoft Download Center:

VFPAnimate.exe

Release Date: May-24-2000

For additional information about how to download Microsoft Support files, click the following article number to view the article in the Microsoft Knowledge Base:

119591 How to Obtain Microsoft Support Files from Online Services

Microsoft scanned this file for viruses. Microsoft used the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help to prevent any unauthorized changes to the file. The ActiveX PictureClip control (PicClp32.ocx) allows you to select and display an area of a source bitmap. This article illustrates the use of a PictureClip control and a FoxHWND control (FoxHWND.ocx) to provide animation in a Visual FoxPro form.

This sample application uses a PictureClip control to sequentially select a series of areas from a source bitmap and display the images in a FoxHWND control.

PictureClip provides an efficient mechanism for storing multiple picture resources in a single bitmap file. Instead of using multiple bitmaps or icons, you can create a source bitmap that contains all of the bitmap images that are required by your application. When you need to display an individual bitmap, you can use PictureClip to select the region in the source bitmap that contains that desired portion of the bitmap.

You can specify the clipping region in the source bitmap in one of two ways:
  1. Select any portion of the source bitmap as the clipping region. Specify the upper-left corner of the clipping region using the ClipX and ClipY properties. Specify the area of the clipping region using the ClipHeight and ClipWidth properties. This method is useful when you want to view a random portion of a bitmap.
  2. Divide the source bitmap into a specified number of rows and columns. The result is a uniform matrix of picture cells numbered 0, 1, 2, and so on. You can display individual cells by using the GraphicCell property. This method is useful when the source bitmap contains a palette of icons that you want to display individually, such as in a toolbar bitmap. Because the PictureClip control returns an object rather than a bitmap, an image control cannot be used to display the selected area of the source bitmap. To display the selected area of the source bitmap, use a FoxHWND control to accept and display the object.

    This sample takes the approach of dividing the bitmap into a matrix containing 6 Columns and 3 Rows. A timer is used to display the sections of the source bitmap sequentially.
(c) Microsoft Corporation 2000, All Rights Reserved. Contributions by John Desch, Microsoft Corporation.

Modification Type:MinorLast Reviewed:8/9/2004
Keywords:kbdownload kbCtrl kbfile kbSample KB260340
©2004 Microsoft Corporation. All rights reserved.