38a
Subj : Re: Problems with API WriteFile
To   : borland.public.cpp.borlandcpp
From : Bob Gonder
Date : Mon Apr 26 2004 09:30 pm

Jeff Baker wrote:

>Can someone please point out why this will not work correctly. I think the
>WriteFile function is called incorrectly but I can't figure out why. I thank
>you in advance.

>   int send_stream[]={4,0,0,0,4,0};
>   DWORD nNumberOfBytesToWrite;
>   LPDWORD lpNumberOfBytesWritten;

Wrong. Use
	DWORD NumberOfBytesWritten;

>   nNumberOfBytesToWrite = 6;
>   lpNumberOfBytesWritten = 0;

Wrong, is same as lpNumberOfBytesWritten = NULL;
Use
 	NumberOfBytesWritten = 0;

>WriteFile(hCom,send_stream,nNumberOfBytesToWrite,lpNumberOfBytesWritten,NULL);

Use		&NumberOfBytesWritten

>   if (nNumberOfBytesToWrite != *lpNumberOfBytesWritten) ProgramError();
Use
   if (nNumberOfBytesToWrite != NumberOfBytesWritten) ProgramError();

.

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