Icon of program: SendMessage

SendMessage for Windows

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Editors’ Review

Download.com staff
SendMessage is a utility for sending custom Windows messages to applications. It's invaluable for debugging, allowing you to simulate system events like WM_ENDSESSION while a debugger is attached.
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SendMessage 0/2

  • Pros

    • Allows sending any Windows message to an application.
    • Facilitates debugging by simulating system messages.
    • Enables sending messages while a debugger is attached.
    • Provides a simple way to find window handles.
    • Includes predefined messages and manual entry options.

  • Cons

    • Primarily for developer and advanced user use.
    • Requires understanding of Windows messages.
Icon of program: SendMessage

SendMessage for Windows

Download now

Used SendMessage for Windows?

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Full Specifications

GENERAL
Release
Latest update
Version
1.1..2
OPERATING SYSTEMS
Platform
Windows
Operating System
  • Windows 7
  • Windows Vista
  • Windows XP
  • Windows 2000
  • Windows 10
Additional Requirements
None
POPULARITY
Total Downloads
183
Downloads Last Week
13
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Last Updated

Developer’s Description

By Stefan Tools
Send Windows messages to your application window.
SendMessage is a little tool to send Windows messages to any window. You can test your application by actually triggering system messages, but especially the WM_ENDSESSION message and its purpose makes it impossible to attach a debugger to your application once Windows sends you that message. With this tool, you can send that message and any other message you like to your application window. And you can do that while you have a debugger attached to your application. To find the window handle of your application, either drag the target icon in the upper left to your main window, or click on the "Windows" button and select the window from the list. There are a few window messages predefined in SendMessage. If you need to send a message that is not in the list, just enter the number of the message and any required values for WPARAM and LPARAM manually.
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