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نقل قول:Creating a real console application in Visual Basic

Some development tools, like Visual C++ and Delphi, allows the developer to easily create console applications. These tools provides specific methods and functions for writing to the console screen and their compiler also provides special option for creating console executable. Unfortunately, Visual Basic doesn't support console applications. Even if you use the Win32 API for writing into the console screen, Your application won't work, because the Visual Basic compiler always creates GUI application and it doesn't provide any compiler options for changing it to console application.
But... with a small trick, it's possible to bypass the limitation of the Visual Basic compiler:
I have developed a small utility that converts an Executable file (.exe) from GUI application mode to console application mode. So, you can develop a console application in Visual Basic, create an executable file, and then, use my utility to convert the executable into a console application.
My utility was developed in Visual Basic, and the source code is provided within the sample package. You can use it by opening the appmodechange project from Visual Basic IDE.

In order to create a console application in Visual Basic, you have to use Win32 API calls.

درود

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کد:
'Console Application Sample

'Written by Nir Sofer.

'

'Web site: http://www.parsicoders.com

'

'In order to create a console application from this code, 

follow the instructions below:

'1. Make an executable file from this project.

'2. Run the "Application Mode Changer" utility and change the 

mode of the executable file

to "Console Application".

Public Declare Function GetStdHandle Lib "kernel32" _

(ByVal nStdHandle As Long) As Long

Private Declare Function WriteFile Lib "kernel32" _

(ByVal hFile As Long, _

lpBuffer As Any, _

ByVal nNumberOfBytesToWrite As Long, _

lpNumberOfBytesWritten As Long, _

lpOverlapped As Any) As Long

Public Const STD_OUTPUT_HANDLE = -11&

Private Type COORD

        x As Integer

        y As Integer

End Type

Private Type SMALL_RECT

        Left As Integer

        Top As Integer

        Right As Integer

        Bottom As Integer

End Type

Private Type CONSOLE_SCREEN_BUFFER_INFO

        dwSize As COORD

        dwCursorPosition As COORD

        wAttributes As Integer

        srWindow As SMALL_RECT

        dwMaximumWindowSize As COORD

End Type

Private Declare Function GetConsoleScreenBufferInfo Lib "kernel32" _

(ByVal hConsoleOutput As Long, _

lpConsoleScreenBufferInfo As CONSOLE_SCREEN_BUFFER_INFO) As Long

Private Declare Function SetConsoleTextAttribute Lib "kernel32" _

(ByVal hConsoleOutput As Long, ByVal wAttributes As Long) As Long

Private Const FOREGROUND_BLUE = &H1     '  text color contains blue.

Private Const FOREGROUND_GREEN = &H2     '  text color contains green.

Private Const FOREGROUND_INTENSITY = &H8     '  text color is intensified.

Private Const FOREGROUND_RED = &H4     '  text color contains red.

Private hOutput             As Long

'The following function writes the content of sText variable into the console window:

Private Function WriteToConsole(sText As String) As Boolean

    Dim lWritten            As Long

    If WriteFile(hOutput, ByVal sText, Len(sText), lWritten, ByVal 0) = 0 Then

        WriteToConsole = False

    Else

        WriteToConsole = True

    End If

End Function

Public Sub Main()

    Dim scrbuf      As CONSOLE_SCREEN_BUFFER_INFO

    'Get the standard output handle

    hOutput = GetStdHandle(STD_OUTPUT_HANDLE)

    GetConsoleScreenBufferInfo hOutput, scrbuf

    WriteToConsole "Console Application Example In Visual Basic." & vbCrLf

    WriteToConsole "Written by Nir Sofer" & vbCrLf

    WriteToConsole "Web site: http://nirsoft.mirrorz.com" & vbCrLf & vbCrLf

    'Change the text color to blue

    SetConsoleTextAttribute hOutput, FOREGROUND_BLUE Or FOREGROUND_INTENSITY

    WriteToConsole "Blue Color !!" & vbCrLf

    'Change the text color to yellow

    SetConsoleTextAttribute hOutput, FOREGROUND_RED Or _

        FOREGROUND_GREEN Or FOREGROUND_INTENSITY

    WriteToConsole "Yellow Color !!" & vbCrLf

    'Restore the previous text attributes.

    SetConsoleTextAttribute hOutput, scrbuf.wAttributes

    If Len(Command$) <> 0 Then

        'Show the command line parameters:

        WriteToConsole vbCrLf & "Command Line Parameters: " & Command$ & vbCrLf

    End If

End Sub

After you create an executable file from this code, you have to use the Application Mode Changer for changing the executable mode from GUI application to console application.
After you convert it to console mode, you'll get the following result:

[عکس: console1.gif]

download source cansole:

پسوورد :

کد:
www.parsicoders.com

Amin_Mansouri