I tried compiling my program. It goes through alright. Now I'm having issues finding where it puts the file.

When HN builds an app(executable) or stack, it places the built app/stack in the project's folder.
For instance if your project is called My Movie Player, then the built app/stack should be in the My Movie Player folder.

Note, when releasing your app or stack, the original project file is not required but remember to make a copy of it somewhere.
Only the app/stack plus any dependencies such as datafiles, images, vidoe setc are required.

As for movies, when I run my program and try to start the movie, it doesn't start. What am I doing wrong?

There is a bug in a movie player's control panel that prevents some movies such as MP4 from playing.

See number 5 in this post:-
http://www.tigabyte.com/smf/index.php?topic=326.0

However, it is possible to control a movie, play or pause it by using the relevant movie command.
 
In the scripts below, the movie player control on the card has ID 1.

The movie to be played was dragged and dropped intoto the project's movie library via the Movie Library menu option  under the menu Windows.
 

Use one button  to play the movie with the command MoviePlayNormalSpeed:-
MoviePlayNormalSpeed(1)


Use another button  to pause the movie with the command MoviePause:-
MoviePause(1)


As a movie player's controller is bugged, it can be hidden using the command MovieSetController.
Its usual to place this or similar commands in the card's open event:-
MovieSetController(1,0)



Attached below is a simple movie player that has a small movie in the project folder.

http://www.tigabyte.com/bits/Movie_Player.zip


More MP4 movies can be found here:-
https://file-examples.com/index.php/sample-video-files/sample-mp4-files/

Hello, I want to ask a question.
Does HyperNext support save/load data from the XML/JSON/Plain text file? Like, save a value of a variable(s), load value of a variable from a file, etc.
Because I want to save my program data and settings there.

HN doesn't have support for XML/JSON but can easily write files to text or binary files.

By default when an HN program/stack closes it automatically saves all of its local and global variables, including content of fields etc.
Then the next time the HN program/stack is run those variables etc are automatically reloaded.
This makes it much easier for beginner programmers.

Hello, I want to know How can I create a 'function' (user-defined procedure) and create a 'plug-in' (plug-in procedure)?

Hello, I want to know how to show an Image in my program.
But I don't know I should use Sprite or Canvas and I didn't know what script I have to use?
I already looked in Script reference but I'm still don't know what script I have to use to show an Image.
Please help me!

Personally I would use the Canvas over the Sprite because in most situations the canvas is more flexible and has more events.
Sprites worked best in HN 3.x but in HN 4.x there were some issues, especially with sprite movement on OS X.
By the way, HN5, will have fully working canvases before its sprite engine is finished.


CanvasImages

To load an image into a canvas from the project folder just use the CanvasLoad(canvas,filename,scaleflag) as below.

Setting the scaleflag to 1 will cause the canvas to fit the whole image into the canvas.  Otherwise it will be displayed at pixel to pixel scale so larger images will be hidden off canvas.

Local fname

Put 'Chrysanthemum.jpg' into fname
CanvasLoad(1,fname,1)

Also there is the CanvasLoadAbs(canvas,filename,scaleflag) command that expects a full file path to the image.

There is also the CanvasLoadAsk(canvas,filename,scaleflag) command that presents a dialog box so the user can locate the image file.


For more details see the Help section Files  - Graphics.




Canvas Drop Image

Its possible to drop an image onto a canvas but the canvas must have its image drop event enabled.
It can be enabled/disabled using the CanvasSetDrop(canvas,modeflag)
Modeflag 0 disables, while 1 enables.
By default canvas image drop is disabled.

Usually the CanvasSetDrop command is placed in the Card's opening event but could equally be placed in a button's script etc.

CanvasSetDrop(1,1)



Image Banks
HyperNext has a set of image banks allowing images to be stored, retrieved and loaded/saved to and from files. The images can also be used in sprite animations and copied to/from canvases. Each bank holds one image and the number of banks allowed is dicated by the memory available.

Images within the banks can be rotated and flipped. These commands are particularly useful for preparing output for the printer and for canvases.

Files used by image banks can be either local or absolute.  Usually it is best to use local files.

There are also two sets of commands for saving/loading images. One is for cross-platform use and the other for standard image formats such as jpegs, picts etc.
 

Here is a brief progress report on HN5 development for the month of September 2020.

The aim is to get the Chart demo project running inside HN5 Creator IDE.

The development is being carried out on a Windows 7 x64 machine with regular testing of HN5 on Linux(Lubuntu).

The development language is Free Pascal which should ensure HN5 will be able to run on a variety of Operating Systems, both newer and older versions. The main targets being Windows, OS X and Linux.


RUNTIME ENGINE

Most of the keywords and functions needed by the Chart project are now implemented.
Those remaining are mostly concerned with the GUI such as canvas, color picker etc.


HELP SYSTEM

This now loads and correctly displays a test HAC help file.
It uses self-contained Free Pascal code to ensure that it will be both cross-platform and not need external helper apps.