In VB6, what is the .frx file used for?

Question

Each .frm file has a binary .frx file associated with it. What is it for?

Answer 1

An .frx file contains data about binary properties of the form and its controls. Such as icons, etc.

Here is an exact description :

'About FRX Files

Someone wrote to ask me about FRX files. What are they? How can you edit them? Can you do without them?

Visual Basic stores binary information in the FRX files. For example, if you set a form's Picture property at design time, Visual Basic stores the image in this file. If you delete the file and try to open the project, you get an error and all the information in the file it lost to the project.

I don't know how to edit these files directly. If you replace the form's Picture property at design time, Visual Basic replaces it in the FRX file, but I don't know how to look at the file's contents.

There isn't really any way to do without these files unless you never load binary information like pictures at design time. You could store pictures and other information in a resource file and load it at run time, or you could store this information in separate files (bitmap files, etc.) and load it at run time. This doesn't really give you much benefit, though some would argue that being able to switch resource files at run time is worth it.

These method have the definite disadvantage that they require these files to be there at run time. If you let Visual Basic store the information in FRX files, then it is included in the EXE when you compile the program.'


From here : http://vb-helper.com/tips14.htm

Answer 2

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\An .FRX file is a binary data file used to store binary information for the form (.FRM) file with the same file name. Some controls, such as the PictureBox and Image controls, have properties that use binary data as their values. Visual Basic stores the binary data in an .FRX file with the same file name as the Form file. The .FRX file is a proprietary format. If your project contains .FRX files, you should include these files with the corresponding .FRM files. A form containing binary information but lacking the associated .FRX files will not function correctly.

Answer 3

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In VB6, what is the .frx file used for?
Each .frm file has a binary .frx file associated with it. What is it for?

Answer 4

Special Ed is correct. I'll also note that if you delete the frx files, your form will lose it's graphical aspects, like icons and colors.

If you copy the project to another directory, make sure to include the frx files.