🎰 Reading from a Mailslot - Win32 apps | Microsoft Docs
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A handle to the device (for example, a file, file stream, physical disk, volume, console buffer, tape drive, socket, communications resource, mailslot, or pipe). The.
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ReadFile is a standard Windows file reading function and it works on a mailslot handle just like it works on any other file. If all goes well, ReadFile.
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🍒 Reading from a Mailslot Account Options
It requests 0 bytes from the mailslot. As soon as anything arrives in the mailslot, ReadFile will unblock. You still have to call GetMailslotInfo to find out how big.
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🍒 Parameters
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A handle to the device (for example, a file, file stream, physical disk, volume, console buffer, tape drive, socket, communications resource, mailslot.
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Mailslots provide an unreliable unidirectional broadcast mechanism. messages by executing the ReadFile function on the handle representing the mailslot.
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Mailslots are designed around the Windows file system interface. Client and server applications use standard Win32 file system I/O functions, such as ReadFile().
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ReadFile is a standard Windows file reading function and it works on a mailslot handle just like it works on any other file. If all goes well, ReadFile.
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As per Microsoft, Error 87 is ERROR_INVALID_PARAMETER from ReadFile() or WriteFile(). So something is wrong with those parameters.
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Skip Submit. In both cases, any unread messages are deleted from the mailslot, all client handles to the mailslot are closed, and the mailslot itself is deleted from memory. Message 1 of 1 Waiting for a message Yes No.
The readfile mailslot that creates a mailslot can read messages from it by using the mailslot handle in a call to the ReadFile function. Readfile mailslot 2 of 2 Waiting for a message Contents of the mailslot: Message three for mailslot. Is this page helpful?
A mailslot exists until the CloseHandle function is called for all open server handles or until all server processes that own a mailslot handle exit. The following is the output that is displayed when this example is run with the mailslot client shown in Writing to a Mailslot. Exit focus mode. The following example calls the GetMailslotInfo function to determine whether there are messages in the mailslot. Any additional feedback? Waiting for a message Contents of the mailslot: Message one for mailslot. If messages are waiting, each is displayed along with the number of messages remaining to be read. Message 1 of 2 Contents of the mailslot: Message two for mailslot. Skip to main content.