[SOLVED] Running program shows Error

[heejit]

I am cross compiling application from Linux to win32, win64

In win32 and win64 on writeln function program shows File Not open Error

In compiler option I selected win32 application there is no console running

[lucamar]

Did you remember to add {$APPTYPE CONSOLE} to your program?

Reason: The standard Read(Ln), Write(Ln), etc. are not readily available for GUI apps.

[Handoko]

I have no problem cross compiling from Linux 64-bit to Win32 and running the binary even without using {$APPTYPE CONSOLE}. Please provide more info and it's better if you also provide the source code.

-edit-
I forgot a "no"

[heejit]

@lucamar : {$APPTYPE CONSOLE}   not added.

@Handoko : Is not possible to provide full source code

Let me try with lazlogger and see the result

[heejit]

@Handoko

On click of tstringgrid I am printing the selected row's custom data to the console

[Handoko]

Eh, you combine TStringGrid with Writeln? TStringGrid is a visual component for GUI but Writeln is a function for used in console applications. I've never done it, I will need to inspect it later.

[heejit]

with lazlogger no error in win32 and win64

[Thaddy]

You already got the answer: IF you want to use writeln in a GUI application then you need {$apptype console} but only on Windows. Under linux, it works if your program starts from a console (e.g.: startlazarus). There are ways around it, but that should work for now. Examine the code of lazlogger too.