README.TXT

Dynamic Data Exchange (DDE) Event and Status Viewer 
 
 
SUMMARY 
======= 
 
The DDESPY tool allows you to view information about the status of dynamic  
data exchange (DDE) conversations. 
 
MORE INFORMATION 
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The DDESPY tool demonstrates how to monitor DDE messages by setting up an  
APPCLASS_MONITOR callback function. The DDESPY-monitored data can be  
selected and filtered through various options. The information is  
represented in up to four selectable tracks for String Handles,  
Conversations, Links and Services, each displayed in different overlapped  
windows. DDESPY records the messages and displays them on the related  
window. DDESPY is useful in debugging to verify DDE data and messages. 
 
DDESPY demonstrates the following techniques: 
 
  - Using a DDE APPCLASS_ MONITOR. 
  - Using a DDE callback routine. 
  - Creating ownerdraw multi-column list boxes (sorted by column). 
  - Creating a string class window to spool endless text. 
 
To use DDESPY to monitor messages, do the following: 
 
 1. Choose the Outputs menu to select the Output device. 
 2. Choose the Monitor menu to select the data you wish to monitor. 
 3. Choose the Track menu to select the track to be displayed. 
 4. Install a client server DDE conversation, such as \ddeml\client and  
    \ddeml\server.