C / C++ / MFC Discussion Boards

mutpan20-May-09 19:40

20-May-09 19:40

Hi All,

I am trying to pass the values to managed code( C# ) to unmanaged code( C++ ). The following is the example code

// C# pinvoke declaration 
[DllImport("Helper.dll", SetLastError = true)] 
[return: MarshalAs(UnmanagedType.Bool)] 
private extern static bool Sample(long AccessibleContext,long vm); 
<p> </p>
// Calling the function from C#
long ac = 10;
long id = 20;
Sample(ac,id);
<p> </p>
// C++ declaration
EXTERN_C __declspec(dllexport) BOOL Sample(  long ac ,long id)
{
  long sa;
  sa = ac + id;
  return true;
}

I am not always getting the value of the second parameter (ie "id") in C++ code, it comes as 0 but i am getting the first parameter value.

How can i resolve this problem?

Thanks in advance.

Re: passing value from C# to c++

norish21-May-09 1:34

norish

21-May-09 1:34

I'm not familiar with C# domain, but I guess it is about calling convention problem.
About __stdcall or __cdecl.

C# maybe require __stdcall against C++ is just __cdecl.

Try C++ code like this;

EXTERN_C __declspec(dllexport) BOOL __stdcall Sample(  long ac ,long id)
{
...
}

I'm not sure how to change C# declaration. Sleepy | :zzz:

TextOut and distance between strings

prithaa20-May-09 18:35

prithaa

20-May-09 18:35

hello,

I have used CFont classes to change the fonts of strings and displayed the strings on screen but I am not able to gauge the exact coordinate where the next string will appear.
I have the legth of the stringg and the LOGFONT structure which stores the info of the Font but how do I find exact coordiantes depending upon the size of the string and LOGFONT info

Prithaa

Re: TextOut and distance between strings

Michael Dunn20-May-09 18:48

Michael Dunn

20-May-09 18:48

Check out GetTextExtentPoint32()

--Mike--
Dunder-Mifflin, this is Pam.

Re: TextOut and distance between strings

prithaa20-May-09 19:09

prithaa

20-May-09 19:09

Hello,

Thanks for your reply.

This seems to be an API function. Can I use it directly in my VC++ program?

Prithaa

Re: TextOut and distance between strings

Michael Dunn20-May-09 19:32

Michael Dunn

20-May-09 19:32

Of course! If you're using MFC, there's probably a wrapper for it in the CDC class too.

--Mike--
Dunder-Mifflin, this is Pam.

Re: TextOut and distance between strings

prithaa20-May-09 19:42

prithaa

20-May-09 19:42

Hello,

Thanks for your answers and quick replies.

I ll check the CDC class thouroughly but I just wanted to ask if it is possible to use an API directly within the program without bothering about the wrapper class.

Prithaa

Re: TextOut and distance between strings

CPallini21-May-09 0:05

CPallini

21-May-09 0:05

Yes, of course you can.
If the name of a API function is the same of a MFC method, you've to use the global namespace operator :: in order to resolve name ambiguity, for instance:

CMyWnd::Foo()
{
  ::PostMessage(...); 
}

this calls the Win32 PostMessage function instead of the CWnd::PostMessage method.
Smile | :)

If the Lord God Almighty had consulted me before embarking upon the Creation, I would have recommended something simpler.
-- Alfonso the Wise, 13th Century King of Castile.

This is going on my arrogant assumptions. You may have a superb reason why I'm completely wrong.
-- Iain Clarke

[My articles]

MFC APPLICATION

kjayalakshmi20-May-09 18:28

kjayalakshmi

20-May-09 18:28

I have created sample mfc executable files uisng MFC dialog based applications. i would to have single mfc executable file by combining all above mfc executable files in VC++. can i create single mfc exe using different mfc exes in new application.

whether this option is possible or not ?

In VB, this option can be done it seems

Jayalakshmi

Re: MFC APPLICATION

Hamid_RT20-May-09 19:17

Hamid_RT

20-May-09 19:17

Why you dont use of dlls files instead exe files?

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: MFC APPLICATION

ThatsAlok20-May-09 21:30

ThatsAlok

20-May-09 21:30

I am afraid, you have to manually do that!

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow
Never mind - my own stupidity is the source of every "problem" - Mixture

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Convert C# to C++ MFC?

nhenden6700020-May-09 17:33

nhenden67000

20-May-09 17:33

I want convert this game from C# to C++,
Plesae help me?
Thank,
Vuong
My mail:hothi_vuong@yahoo.com,nhenden672000@yahoo.com
// -----------------------------------------------------------------------------------
// Program : To implement the Sliding Puzzle game
// Code By : Tushar Agarwal
// Email : tushar_ag@yahoo.com, a_tushar@hotmail.com, tushar_bbit@rediffmail.com
//
// © CopyRight Reserved: This code is protected against copyright.
// The use, reproduction, change of this code in any form or by any means without the
// prior permission of the author will be punishable.
// ----------------------------------------------------------------------------------

// If there are any errors please do tell me
// For any Help, suggestions, comments please feel free to mail me or call me at
// (+91) 98680 52445

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Data.OleDb ;

namespace Tushar.SlidingPuzzle
{
/// <summary>
/// Summary description for Main Form.
/// </summary>

public class formMain : System.Windows.Forms.Form
{
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Button button8;
private System.Windows.Forms.Button button9;
private System.Windows.Forms.Button button10;
private System.Windows.Forms.Button button11;
private System.Windows.Forms.Button button12;
private System.Windows.Forms.Button button13;
private System.Windows.Forms.Button button14;
private System.Windows.Forms.Button button15;
private System.Drawing.Point EmptyPoint;
// ArrayList alAllButtons to store all the Buttons on the form
private ArrayList alAllButtons;
// ArrayList alSmallImages to store small pictures to be displayed on the buttons
private ArrayList ilSmallImages;
// This is the main Picture which is to be formed
private Bitmap MainBitmap;

private System.Windows.Forms.MainMenu mainMenu;
private System.Windows.Forms.Button buttonShowHide;
private System.Windows.Forms.Button buttonReStart;
private System.Windows.Forms.MenuItem menuItem7;
private System.Windows.Forms.MenuItem menuItem8;
private System.Windows.Forms.MenuItem miFileNewGame;
private System.Windows.Forms.Button buttonChangeImage;
private System.Windows.Forms.Button buttonRefresh;
private System.Windows.Forms.MenuItem miFile;
private System.Windows.Forms.MenuItem miMode;
private System.Windows.Forms.MenuItem miFileModeNumber;
private System.Windows.Forms.MenuItem miFileModePicture;
private System.Windows.Forms.MenuItem miFileModeNumPic;
private System.Windows.Forms.MenuItem miFileLoadPicture;
private System.Windows.Forms.MenuItem miFileExit;
private System.Windows.Forms.MenuItem miHelpAbout;

/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;

public formMain()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();

//
// TODO: Add any constructor code after InitializeComponent call
//

// This point keeps track of the empty point where there is no button
// a place where a button move can be made
EmptyPoint = new Point ();

// Create a ArrayList alAllButtons to store the buttons
alAllButtons = new ArrayList ();
// Add all the buttons present on the panel to the ArrayList
foreach(Button b in panel1.Controls )
alAllButtons.Add (b);

// Try loading the Default picture from the default path
try
{
MainBitmap = (Bitmap)Bitmap.FromFile (Application.StartupPath +"\\game.jpg");
MessageBox.Show (Application.StartupPath.ToString ());
}
catch (Exception ex)
{
// If there is an error then display the error message.
MessageBox.Show (ex.Message.ToString ());
}

// Initialize Empty Point to the down right most corner of the panel
Point p = new Point (320,320);
EmptyPoint.X = 240;
EmptyPoint.Y = 240;

// Initialize the Game Mode to the Picture Mode
miFileModeNumber.Checked = false;
miFileModePicture.Checked = true;
miFileModeNumPic.Checked = false;
HideNumbersFromButtons();

// This function does the extra initilization needed by the game
NewGame();

}

/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{

if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}

#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.panel1 = new System.Windows.Forms.Panel();
this.button15 = new System.Windows.Forms.Button();
this.button14 = new System.Windows.Forms.Button();
this.button13 = new System.Windows.Forms.Button();
this.button12 = new System.Windows.Forms.Button();
this.button11 = new System.Windows.Forms.Button();
this.button10 = new System.Windows.Forms.Button();
this.button9 = new System.Windows.Forms.Button();
this.button8 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button1 = new System.Windows.Forms.Button();
this.buttonShowHide = new System.Windows.Forms.Button();
this.buttonReStart = new System.Windows.Forms.Button();
this.mainMenu = new System.Windows.Forms.MainMenu();
this.miFile = new System.Windows.Forms.MenuItem();
this.miFileNewGame = new System.Windows.Forms.MenuItem();
this.miFileLoadPicture = new System.Windows.Forms.MenuItem();
this.miMode = new System.Windows.Forms.MenuItem();
this.miFileModeNumber = new System.Windows.Forms.MenuItem();
this.miFileModePicture = new System.Windows.Forms.MenuItem();
this.miFileModeNumPic = new System.Windows.Forms.MenuItem();
this.miFileExit = new System.Windows.Forms.MenuItem();
this.menuItem7 = new System.Windows.Forms.MenuItem();
this.menuItem8 = new System.Windows.Forms.MenuItem();
this.miHelpAbout = new System.Windows.Forms.MenuItem();
this.buttonChangeImage = new System.Windows.Forms.Button();
this.buttonRefresh = new System.Windows.Forms.Button();
this.panel1.SuspendLayout();
this.SuspendLayout();
//
// panel1
//
this.panel1.Controls.AddRange(new System.Windows.Forms.Control[] {
this.button15,
this.button14,
this.button13,
this.button12,
this.button11,
this.button10,
this.button9,
this.button8,
this.button7,
this.button6,
this.button5,
this.button4,
this.button3,
this.button2,
this.button1});
this.panel1.Location = new System.Drawing.Point(20, 10);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(320, 320);
this.panel1.TabIndex = 0;
//
// button15
//
this.button15.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button15.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button15.ForeColor = System.Drawing.SystemColors.Control;
this.button15.Location = new System.Drawing.Point(160, 240);
this.button15.Name = "button15";
this.button15.Size = new System.Drawing.Size(80, 80);
this.button15.TabIndex = 14;
this.button15.Click += new System.EventHandler(this.OnButtonClick);
//
// button14
//
this.button14.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button14.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button14.ForeColor = System.Drawing.SystemColors.Control;
this.button14.Location = new System.Drawing.Point(80, 240);
this.button14.Name = "button14";
this.button14.Size = new System.Drawing.Size(80, 80);
this.button14.TabIndex = 13;
this.button14.Click += new System.EventHandler(this.OnButtonClick);
//
// button13
//
this.button13.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button13.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button13.ForeColor = System.Drawing.SystemColors.Control;
this.button13.Location = new System.Drawing.Point(0, 240);
this.button13.Name = "button13";
this.button13.Size = new System.Drawing.Size(80, 80);
this.button13.TabIndex = 12;
this.button13.Click += new System.EventHandler(this.OnButtonClick);
//
// button12
//
this.button12.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button12.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button12.ForeColor = System.Drawing.SystemColors.Control;
this.button12.Location = new System.Drawing.Point(240, 160);
this.button12.Name = "button12";
this.button12.Size = new System.Drawing.Size(80, 80);
this.button12.TabIndex = 11;
this.button12.Click += new System.EventHandler(this.OnButtonClick);
//
// button11
//
this.button11.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button11.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button11.ForeColor = System.Drawing.SystemColors.Control;
this.button11.Location = new System.Drawing.Point(160, 160);
this.button11.Name = "button11";
this.button11.Size = new System.Drawing.Size(80, 80);
this.button11.TabIndex = 10;
this.button11.Click += new System.EventHandler(this.OnButtonClick);
//
// button10
//
this.button10.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button10.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button10.ForeColor = System.Drawing.SystemColors.Control;
this.button10.Location = new System.Drawing.Point(80, 160);
this.button10.Name = "button10";
this.button10.Size = new System.Drawing.Size(80, 80);
this.button10.TabIndex = 9;
this.button10.Click += new System.EventHandler(this.OnButtonClick);
//
// button9
//
this.button9.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button9.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button9.ForeColor = System.Drawing.SystemColors.Control;
this.button9.Location = new System.Drawing.Point(0, 160);
this.button9.Name = "button9";
this.button9.Size = new System.Drawing.Size(80, 80);
this.button9.TabIndex = 8;
this.button9.Click += new System.EventHandler(this.OnButtonClick);
//
// button8
//
this.button8.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button8.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button8.ForeColor = System.Drawing.SystemColors.Control;
this.button8.Location = new System.Drawing.Point(240, 80);
this.button8.Name = "button8";
this.button8.Size = new System.Drawing.Size(80, 80);
this.button8.TabIndex = 7;
this.button8.Click += new System.EventHandler(this.OnButtonClick);
//
// button7
//
this.button7.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button7.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button7.ForeColor = System.Drawing.SystemColors.Control;
this.button7.Location = new System.Drawing.Point(160, 80);
this.button7.Name = "button7";
this.button7.Size = new System.Drawing.Size(80, 80);
this.button7.TabIndex = 6;
this.button7.Click += new System.EventHandler(this.OnButtonClick);
//
// button6
//
this.button6.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button6.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button6.ForeColor = System.Drawing.SystemColors.Control;
this.button6.Location = new System.Drawing.Point(80, 80);
this.button6.Name = "button6";
this.button6.Size = new System.Drawing.Size(80, 80);
this.button6.TabIndex = 5;
this.button6.Click += new System.EventHandler(this.OnButtonClick);
//
// button5
//
this.button5.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button5.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button5.ForeColor = System.Drawing.SystemColors.Control;
this.button5.Location = new System.Drawing.Point(0, 80);
this.button5.Name = "button5";
this.button5.Size = new System.Drawing.Size(80, 80);
this.button5.TabIndex = 4;
this.button5.Click += new System.EventHandler(this.OnButtonClick);
//
// button4
//
this.button4.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button4.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button4.ForeColor = System.Drawing.SystemColors.Control;
this.button4.Location = new System.Drawing.Point(240, 0);
this.button4.Name = "button4";
this.button4.Size = new System.Drawing.Size(80, 80);
this.button4.TabIndex = 3;
this.button4.Click += new System.EventHandler(this.OnButtonClick);
//
// button3
//
this.button3.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button3.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button3.ForeColor = System.Drawing.SystemColors.Control;
this.button3.Location = new System.Drawing.Point(160, 0);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(80, 80);
this.button3.TabIndex = 2;
this.button3.Click += new System.EventHandler(this.OnButtonClick);
//
// button2
//
this.button2.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button2.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button2.ForeColor = System.Drawing.SystemColors.Control;
this.button2.Location = new System.Drawing.Point(80, 0);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(80, 80);
this.button2.TabIndex = 1;
this.button2.Click += new System.EventHandler(this.OnButtonClick);
//
// button1
//
this.button1.FlatStyle = System.Windows.Forms.FlatStyle.Flat;
this.button1.Font = new System.Drawing.Font("Microsoft Sans Serif", 24F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(0)));
this.button1.ForeColor = System.Drawing.SystemColors.Control;
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(80, 80);
this.button1.TabIndex = 0;
this.button1.Click += new System.EventHandler(this.OnButtonClick);
//
// buttonShowHide
//
this.buttonShowHide.Location = new System.Drawing.Point(240, 344);
this.buttonShowHide.Name = "buttonShowHide";
this.buttonShowHide.Size = new System.Drawing.Size(104, 24);
this.buttonShowHide.TabIndex = 1;
this.buttonShowHide.Text = "Show Image";
this.buttonShowHide.Click += new System.EventHandler(this.buttonShowHideOnClick);
//
// buttonReStart
//
this.buttonReStart.Location = new System.Drawing.Point(16, 344);
this.buttonReStart.Name = "buttonReStart";
this.buttonReStart.Size = new System.Drawing.Size(88, 24);
this.buttonReStart.TabIndex = 2;
this.buttonReStart.Text = "ReStart";
this.buttonReStart.Click += new System.EventHandler(this.OnButtonReStartClick);
//
// mainMenu
//
this.mainMenu.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.miFile,
this.menuItem7});
//
// miFile
//
this.miFile.Index = 0;
this.miFile.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.miFileNewGame,
this.miFileLoadPicture,
this.miMode,
this.miFileExit});
this.miFile.Text = "File";
//
// miFileNewGame
//
this.miFileNewGame.Index = 0;
this.miFileNewGame.Text = "New Game";
this.miFileNewGame.Click += new System.EventHandler(this.OnmiFileNewGameClick);
//
// miFileLoadPicture
//
this.miFileLoadPicture.Index = 1;
this.miFileLoadPicture.Text = "Change Picture";
this.miFileLoadPicture.Click += new System.EventHandler(this.OnmiFileChangePicture);
//
// miMode
//
this.miMode.Index = 2;
this.miMode.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.miFileModeNumber,
this.miFileModePicture,
this.miFileModeNumPic});
this.miMode.Text = "Mode";
//
// miFileModeNumber
//
this.miFileModeNumber.Checked = true;
this.miFileModeNumber.Index = 0;
this.miFileModeNumber.RadioCheck = true;
this.miFileModeNumber.Text = "Number Mode";
this.miFileModeNumber.Click += new System.EventHandler(this.OnmiFileNumberModeClick);
//
// miFileModePicture
//
this.miFileModePicture.Index = 1;
this.miFileModePicture.RadioCheck = true;
this.miFileModePicture.Text = "Picture Mode";
this.miFileModePicture.Click += new System.EventHandler(this.OnmiFileModePictureClick);
//
// miFileModeNumPic
//
this.miFileModeNumPic.Index = 2;
this.miFileModeNumPic.Text = "Number and Picture Mode";
this.miFileModeNumPic.Click += new System.EventHandler(this.OnmiFileModeNumPic);
//
// miFileExit
//
this.miFileExit.Index = 3;
this.miFileExit.Text = "E&xit";
this.miFileExit.Click += new System.EventHandler(this.OnFileExitClick);
//
// menuItem7
//
this.menuItem7.Index = 1;
this.menuItem7.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem8,
this.miHelpAbout});
this.menuItem7.Text = "Help";
//
// menuItem8
//
this.menuItem8.Index = 0;
this.menuItem8.Text = "Help";
//
// miHelpAbout
//
this.miHelpAbout.Index = 1;
this.miHelpAbout.Text = "About";
this.miHelpAbout.Click += new System.EventHandler(this.OnmiHelpAboutClick);
//
// buttonChangeImage
//
this.buttonChangeImage.Location = new System.Drawing.Point(112, 344);
this.buttonChangeImage.Name = "buttonChangeImage";
this.buttonChangeImage.Size = new System.Drawing.Size(112, 24);
this.buttonChangeImage.TabIndex = 3;
this.buttonChangeImage.Text = "&Change Image";
this.buttonChangeImage.Click += new System.EventHandler(this.OnbuttonChangeImageClick);
//
// buttonRefresh
//
this.buttonRefresh.Location = new System.Drawing.Point(488, 344);
this.buttonRefresh.Name = "buttonRefresh";
this.buttonRefresh.Size = new System.Drawing.Size(96, 23);
this.buttonRefresh.TabIndex = 4;
this.buttonRefresh.Text = "Re&fresh";
this.buttonRefresh.Visible = false;
this.buttonRefresh.Click += new System.EventHandler(this.buttonRefresh_Click);
//
// formMain
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(360, 385);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.buttonRefresh,
this.buttonChangeImage,
this.buttonReStart,
this.buttonShowHide,
this.panel1});
this.MaximizeBox = false;
this.Menu = this.mainMenu;
this.Name = "formMain";
this.StartPosition = System.Windows.Forms.FormStartPosition.Manual;
this.Text = "Sliding Tile Game - Made by Tushar Agarwal";
this.panel1.ResumeLayout(false);
this.ResumeLayout(false);

}
#endregion

/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new formMain());
}

// This function is called whenever a user wants to see or hide the Image
// If the image is already being displayed then hide it otherwise show it
// This works as a toggle function to Show/Hide the Image
private void buttonShowHideOnClick(object sender, System.EventArgs e)
{
Button tempBtn = (Button)sender;

// If the image is not shown, Show it.
if (tempBtn.Text == "Show Image")
{
this.Size = new Size (720,450);
Graphics g = this.CreateGraphics ();
g.DrawImage (MainBitmap,375,10,MainBitmap.Width ,MainBitmap.Height );
g.DrawString ("Made by Tushar Agarwal",this.Font ,Brushes.MistyRose ,375,20);

g.Dispose ();
tempBtn.Text = "Hide Image";
buttonRefresh.Visible = true;
}
// If the image is already displayed and the user wants' to Hide it.
else
{
this.Size = new Size (375,450);
tempBtn.Text = "Show Image";
buttonRefresh.Visible = false;
}
}

// This is the function which moves the button to the Empty places
// This function takes a button as a parameter
private void MoveButton(Button ClickedButton )
{

// Proceed with the function only if the button is either horizontally or
// vertically inline with the Empty Point
if(EmptyPoint.X == ClickedButton.Location.X || EmptyPoint.Y == ClickedButton.Location.Y)
{
// After the button will be moved the new Empty Point is gonna change
// So store the current position of the Button in a tempPoint
Point tempEmptyPoint = new Point ();
tempEmptyPoint = ClickedButton.Location;

// Find out in which direction we have to move the Button
int d = Direction (ClickedButton.Location ,EmptyPoint);

// Follow this procedure if we have to move the button Up or Down
// i.e. the button is vertically inline with the Empty Point
if(EmptyPoint.X == ClickedButton.Location.X )
{
// There could be some other buttons that are in b/w the clicked
// button and the EmptyPoint. So we'll have to shift all the buttons
foreach(Button bx in panel1.Controls )
{
if (((bx.Location.Y >= ClickedButton.Location.Y)
&& (bx.Location.Y < EmptyPoint.Y ) &&(bx.Location.X == EmptyPoint.X )) || ((bx.Location.Y <= ClickedButton.Location.Y)
&& (bx.Location.Y > EmptyPoint.Y )&&(bx.Location.X == EmptyPoint.X )))
{
switch (d)
{
case 1: Functions.MoveUp(bx);
break;
case 3: Functions.MoveDown(bx);
break;
}
}

}
}

// Follow this procedure if we have to move the button Left or Right
// i.e. the Clicked button is horizontally inline with the Empty Space
if(EmptyPoint.Y == ClickedButton.Location.Y )
{
// There could be some other buttons that are in b/w the clicked
// button and the EmptyPoint. So we'll have to shift all the buttons
foreach(Button bx in panel1.Controls )
{
if (((bx.Location.X >= ClickedButton.Location.X)
&& (bx.Location.X < EmptyPoint.X ) && (bx.Location.Y == EmptyPoint.Y )) || ((bx.Location.X <= ClickedButton.Location.X)
&& (bx.Location.X >EmptyPoint.X ) && (bx.Location.Y == EmptyPoint.Y )))
{
switch (d)
{
case 0 : Functions.MoveRight(bx);
break;
case 2: Functions.MoveLeft(bx);
break;

}

}
}
}

EmptyPoint = tempEmptyPoint;
}
}

/// <summary>
/// Find out the direction in which we have to move the buttons
/// </summary>
/// <param name="Loc">The Location of the Button Clicked</param>
/// <param name="ep">The EmptyPoint Co-ordinates</param>
/// <returns></returns>
private int Direction( Point Loc,Point ep)
{
int valuetoreturn=0;
if ((Loc.X < ep.X) && (Loc.Y == ep.Y ))
valuetoreturn = 0;
else if ((Loc.X > ep.X) && (Loc.Y == ep.Y ))
valuetoreturn= 2;
else if ((Loc.Y < ep.Y) && (Loc.X == ep.X))
valuetoreturn = 3;
else if ((Loc.Y > ep.Y )&&( Loc.X == ep.X))
valuetoreturn= 1;
return valuetoreturn;
}

//This function Randomizes the Buttons
private void Randomize ()
{
Random r = new Random ();
Button tempBtn = new Button();
for (int i =0; i < 100; i++)
{
// Choose a Random Button from all the buttons present
tempBtn = (Button) alAllButtons[r.Next(alAllButtons.Count )];

// Move it
MoveButton(tempBtn);
} // Repeat this loop 100 times.

}

// If a button is clicked move it towards the Empty Space
private void OnButtonClick(object sender, System.EventArgs e)
{
MoveButton((Button)sender);
}

// This function takes an Bitmap Image, crops it from the points passed as
// parameter and returns back a cropped image
// But this function is not useful Right now.
// It'll help when i'll upgrade the project
public Image CropAndReturn(Bitmap ToBeCropped, Bitmap NewBitmap,int x, int y)
{
Bitmap b = new Bitmap(x,y);
for(int i =0; i< x; i++)
for(int j = 0; j< y; j++)
b.SetPixel (i,j,ToBeCropped.GetPixel (i,j));
return b;

}

/// <summary>
/// This function takes a Image and makes pieces 15 pieces of it, of 80x80 pixels
/// Exactly of the size of a button
/// </summary>
/// <param name="ToBeCropped"></param>
/// <param name="x">The width of the small images</param>
/// <param name="y">The Height of the small images</param>
/// <returns></returns>
public ArrayList ReturnCroppedList(Bitmap ToBeCropped,int x,int y)
{
ArrayList ilTemp = new ArrayList ();
int h,v;
h=v=0;
for(int k = 0; k <15; k++)
{
Bitmap b = new Bitmap(x,y);

for(int i =0; i< x; i++)
for(int j = 0; j< y; j++)
b.SetPixel (i,j,ToBeCropped.GetPixel ((i+h),(j+v)));
ilTemp.Add(b);

h+=80;
if (h == 320)
{h=0; v+=80;}

}
return ilTemp;
}

/// <summary>
/// This function binds the Images to the button
/// </summary>
public void AddImagesToButtons()
{
ilSmallImages = ReturnCroppedList(MainBitmap,80,80);
button1.Image = (Image)ilSmallImages[0];
button2.Image = (Image)ilSmallImages[1];
button3.Image = (Image)ilSmallImages[2];
button4.Image = (Image)ilSmallImages[3];
button5.Image = (Image)ilSmallImages[4];
button6.Image = (Image)ilSmallImages[5];
button7.Image = (Image)ilSmallImages[6];
button8.Image = (Image)ilSmallImages[7];
button9.Image = (Image)ilSmallImages[8];
button10.Image = (Image)ilSmallImages[9];
button11.Image = (Image)ilSmallImages[10];
button12.Image = (Image)ilSmallImages[11];
button13.Image = (Image)ilSmallImages[12];
button14.Image = (Image)ilSmallImages[13];
button15.Image = (Image)ilSmallImages[14];

}

/// <summary>
/// This function gets a image from the database
/// </summary>
/// <param name="c">This character specifies whether to get a Normal Image
/// or the "Expert Mode" Image</param>
/// <returns></returns>
private Bitmap GetBitmapFromDatabase(char c)
{

Bitmap b = new Bitmap (320,320);
Random r = new Random ();
string sql = "Select * from Bitmaps";
string strConn = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+Application.StartupPath +"\\game.mdb";
OleDbConnection Conn = new OleDbConnection (strConn);
try
{
Conn.Open();
System.Data.OleDb.OleDbDataAdapter da = new OleDbDataAdapter (sql,Conn);
DataSet ds = new DataSet ();
da.Fill (ds,"Bitmaps");
DataTable dt = ds.Tables["Bitmaps"];
DataRow dr;
do
{
dr= dt.Rows [r.Next (dt.Rows.Count )];
b=(Bitmap) Bitmap.FromFile (Application.StartupPath + "\\Images\\"+dr["Picture"].ToString ());

}while(dr["Type"].ToString () != c.ToString ());

}
catch (Exception ex)
{
MessageBox.Show (ex.Message.ToString ());
Conn.Close ();
}
finally
{
Conn.Close ();
}
return b;
}

void NewGame()
{
ilSmallImages = new ArrayList ();
// This function gets the Main picture, shreds it and binds the small
// images to the button
AddImagesToButtons();

// This function randomizes the buttons
Randomize();

}

// Randomize th images
private void OnButtonReStartClick(object sender, System.EventArgs e)
{
Randomize();
}

private void OnmiFileNewGameClick(object sender, System.EventArgs e)
{
NewGame();
}

private void buttonRefresh_Click(object sender, System.EventArgs e)
{
Graphics g = this.CreateGraphics ();
g.DrawImage (MainBitmap,375,10,MainBitmap.Width ,MainBitmap.Height);

g.DrawString ("Made by Tushar Agarwal",this.Font ,Brushes.MistyRose ,375,20);
g.Dispose ();
}

private void OnbuttonChangeImageClick(object sender, System.EventArgs e)
{
MainBitmap = GetBitmapFromDatabase('N');
NewGame();
}

private void OnmiFileModeNumPic(object sender, System.EventArgs e)
{
miFileModeNumber.Checked = false;
miFileModePicture.Checked = false;
miFileModeNumPic.Checked = true;
ShowNumbersOnButtons();
}

// This functin shows the numbers on the button
void ShowNumbersOnButtons()
{
button1.Text = "1";
button2.Text = "2";
button3.Text = "3";
button4.Text = "4";
button5.Text = "5";
button6.Text = "6";
button7.Text = "7";
button8.Text = "8";
button9.Text = "9";
button10.Text = "10";
button11.Text = "11";
button12.Text = "12";
button13.Text = "13";
button14.Text = "14";
button15.Text = "15";
}
// This function erases the numbers written on the button
void HideNumbersFromButtons()
{
button1.Text = "";
button2.Text = "";
button3.Text = "";
button4.Text = "";
button5.Text = "";
button6.Text = "";
button7.Text = "";
button8.Text = "";
button9.Text = "";
button10.Text = "";
button11.Text = "";
button12.Text = "";
button13.Text = "";
button14.Text = "";
button15.Text = "";
}

private void OnmiFileModePictureClick(object sender, System.EventArgs e)
{

miFileModeNumber.Checked = false;
miFileModePicture.Checked = true;
miFileModeNumPic.Checked = false;
HideNumbersFromButtons();
}

private void OnmiFileChangePicture(object sender, System.EventArgs e)
{
MainBitmap = GetBitmapFromDatabase('N');
NewGame();
}

private void OnmiFileNumberModeClick(object sender, System.EventArgs e)
{
// This have to be still made
MessageBox.Show ("This function hasn't implemented yet");
}

private void OnFileExitClick(object sender, System.EventArgs e)
{
Application.Exit ();
}

private void OnmiHelpAboutClick(object sender, System.EventArgs e)
{
string temp;
temp = "Made by : TUSHAR AGARWAL" +
"\nEMail : tushar_ag@yahoo.com" +
"\nPhone : 98680 52445";
MessageBox.Show (temp,"About Sliding Puzzle");
}

}
}

Re: Convert C# to C++ MFC?

Chandrasekharan P20-May-09 17:49

Chandrasekharan P

20-May-09 17:49

Please read the guidelines before sending a query.

Re: Convert C# to C++ MFC?

Hamid_RT20-May-09 19:17

Hamid_RT

20-May-09 19:17

Why you dont start to write it on the c++ you have some buttons and menus on your code that its exist on c++ then you loaded a jpj file and I think I saw you read bitmap files of a databse that you can use of CDatabse class on the c++ and...

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Convert C# to C++ MFC?

ThatsAlok20-May-09 21:32

ThatsAlok

20-May-09 21:32

Brother, you are ruining my business opportunity... Mad | :mad:

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Re: Convert C# to C++ MFC?

Hamid_RT21-May-09 2:32

Hamid_RT

21-May-09 2:32

Dont worry its recession. Smile | :)

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Convert C# to C++ MFC?

ThatsAlok20-May-09 21:31

ThatsAlok

20-May-09 21:31

How much will you pay?!

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Having problems changing between forms.

monkeyboy200920-May-09 16:54

monkeyboy2009

20-May-09 16:54

Hi, I'm not a very knowledgable programmer in visual C++, as I've only learned from my Programming12 class which started in February. I hope that I can provide as much information as I can to help you understand my problem better. Thank you in advance for all of your help.

A bit about my program:
- It is a "Store" application, so I have Items and the user inputs the amount of money they have, and they buy which items they want accordingly. If they spend too much, when they try to go to the checkout, a messagebox tells them they have spent too much and must redo.
- I have 3 forms: "Form1", "Inventory", and "Checkout".
- I want to pass information between each (Prices/Quantities Bought/User's Name, etc.

To change forms, I was using

Inventory^ frm2 = gcnew Inventory();

and calling frm2 on the MAIN form (Form1), and on the "Inventory" form, I was using

Form^ frm1 = Application::OpenForms["Form1"];

I was having problems with that, so I decided to just use the following code to deal with it:

this->Size = System::Drawing::Size(124,20);
this->CenterToScreen();
this->TopMost = false;

This was to Change the Form1, and hide it behind the new form.

Then I would use this:

frm2->Show();
frm2->TopMost = true;

To show the 2nd form (Inventory)

Going between the Form1 and the Inventory forms was okay, but I can't seem to get to the 3rd form (Checkout) at all. I keep getting the error described in the title: "An unhandled exception of type 'System.NullReferenceException' occurred in System.Windows.Forms.dll Additional information: Object reference not set to an instance of an object."

Is there a better way I can go between forms than the ways described? How can I fix that error?
Any help will be much appreciated. I will provide as much information as necessary for you to understand better.

Thank you again,
Monkeyboy2009

Re: Having problems changing between forms.

Chandrasekharan P20-May-09 19:17

Chandrasekharan P

20-May-09 19:17

This is not VC++ programming. this looks like C#

Re: Having problems changing between forms.

ThatsAlok20-May-09 21:36

ThatsAlok

20-May-09 21:36

Chandrasekharanp wrote:
This is not VC++ programming. this looks like C#

I am afraid, It is managed vc++.

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Re: Having problems changing between forms.

Chandrasekharan P20-May-09 21:52

Chandrasekharan P

20-May-09 21:52

Hey thanks Alok. I was not knowing this.

Re: Having problems changing between forms.

ThatsAlok20-May-09 21:36

ThatsAlok

20-May-09 21:36

post your problem in it's specialist forum :- http://www.codeproject.com/Forums/3785/Managed-Cplusplus-CLI.aspx[^]

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Help me!

nhenden6700020-May-09 16:11

nhenden67000

20-May-09 16:11

I need a source code project SlidingPuzzle game by MFC C++.
Can you help me,plesae
My mail:hothi_vuong@yahoo.com
or: nhenden672000@yahoo.com
Thanks,
Vuong

Re: Help me!

Hamid_RT20-May-09 19:22

Hamid_RT

20-May-09 19:22

Here Sliding Puzzle Game[^] with C# code and Slidingpuzzle Game & C++ [^.

Of one Essence is the human race
thus has Creation put the base
One Limb impacted is sufficient
For all Others to feel the Mace
(Saadi )

Re: Help me!

ThatsAlok20-May-09 21:38

ThatsAlok

20-May-09 21:38

nhenden67000 wrote:
I need a source code project SlidingPuzzle game by MFC C++.

http://www.google.com[^] is your friend here...

cheers,
Alok Gupta
VC Forum Q&A :- I/IV
Support CRY- Child Relief and You

Use Ctrl+Left/Right to switch messages, Ctrl+Up/Down to switch threads, Ctrl+Shift+Left/Right to switch pages.