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Visual C++ Programming

Ask questions about Windows programming with Visual C++ and help others by answering their questions.

InstallShield - Reading from a binary file


Second post!  Still need help!!   I'm trying to write a script in InstallShield that reads from a binary file. The binary file was written with the statements:   FILE *exerfile = fopen(Temp, "wb" );	 if (exerfile != NULL)	 {		 	for ( k=0; k<1000; k++)		 	{			 		fwrite(Exer_info[k].name,  sizeof(Exer_info[0].name), 1, exerfile); 		fwrite(&(Exer_info[k].id),  sizeof(Exer_info[0].id), 1, exerfile); 	}		 	fclose(exerfile);	 }      where Exer_info is an array of 1000, and each member of Exer_info contains:   char name[45]; int id;    When I try to read the file in my InstallShield script, I use the following statements in a while loop that iterates 1000 times.   ReadBytes (nvFileHandle, svTitle, 0, 45); ReadBytes (nvFileHandle, svID, 0, 4);   The variables in the above statement are declared as:  NUMBER nvFileHandle; STRING svTitle, svID;   I'm getting valid data for the svTitle variable, but svID is filled with garbage. I tried converting it to a number, but since the string contains garbage, the number becomes 0 -- it should be 1 the first time through the while loop.  If I comment out the second ReadBytes statement and replace it with  SeekBytes(nvFileHandle, 4, FILE_BIN_CUR); to move forward 4 bytes and skip reading the ID, I'm able to read all of the correct values into svTitle.  I need to figure out how to get those 4 bytes, which represent an integer, and the only function to read from a binary file that I can find in the InstallShield help is ReadBytes, which must read into a string!   Please help!  I've looked everywhere for the answer and can't find it.  I must read this file before I install a new version of my product on my customer's system.   Thanks! Stephanie


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