Application.DDEInitiate method (Access)
Use the DDEInitiate function to begin a dynamic data exchange (DDE) conversation with another application. The DDEInitiate function opens a DDE channel for transfer of data between a DDE server and a client application.
Syntax
expression.DDEInitiate (Application, Topic)
expression A variable that represents an Application object.
Parameters
Name | Required/Optional | Data type | Description |
---|---|---|---|
Application | Required | String | A string expression identifying an application that can participate in a DDE conversation. Usually, the application argument is the name of an .exe file (without the .exe extension) for a Microsoft Windows-based application, such as Microsoft Excel. |
Topic | Required | String | A string expression that is the name of a topic recognized by the application argument. Check the application's documentation for a list of topics. |
Return value
Variant
Remarks
For example, if you wish to transfer data from a Microsoft Excel spreadsheet to a Microsoft Access database, you can use the DDEInitiate function to open a channel between the two applications. In this example, Microsoft Access acts as the client application and Microsoft Excel acts as the server application.
If successful, the DDEInitiate function begins a DDE conversation with the application and topic specified by the application and topic arguments, and then returns a Long integer value. This return value represents a unique channel number identifying a channel through which data transfer can take place. This channel number is subsequently used with other DDE functions and statements.
If the application isn't already running or if it's running but doesn't recognize the topic argument or doesn't support DDE, the DDEInitiate function returns a run-time error.
The value of the topic argument depends on the application specified by the application argument. For applications that use documents or data files, valid topic names often include the names of those files.
Note
The maximum number of channels that can be open simultaneously is determined by Windows and your computer's memory and resources. If you aren't using a channel, you should conserve resources by terminating it with a DDETerminate or DDETerminateAll statement.
If you need to manipulate another application's objects from Microsoft Access, you may want to consider using Automation.
Support and feedback
Have questions or feedback about Office VBA or this documentation? Please see Office VBA support and feedback for guidance about the ways you can receive support and provide feedback.
피드백
https://aka.ms/ContentUserFeedback
출시 예정: 2024년 내내 콘텐츠에 대한 피드백 메커니즘으로 GitHub 문제를 단계적으로 폐지하고 이를 새로운 피드백 시스템으로 바꿀 예정입니다. 자세한 내용은 다음을 참조하세요.다음에 대한 사용자 의견 제출 및 보기