Difference on developing client applications on PC and Mac platform.

Hi,
I would like to know wats the difference on developing client applications on PC and Mac platform.
If i were to create software applications using Javascript, MS SQL Server 2000 and JAVA on Mac platform, would there be any difference from those we created on PC(Windows)?

Write once, debug ewerywhere. There should not be any
difference running pure Java code on difference
platforms.Umm.. "should" is the operative word..
Threads come to mind...as even when they are written as "Pure Java".. the native thread implementation can work harry cary (as opposed to Harry Potter) on your app...

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Please provide me differences between Oracle RAC 11gR1 and 11gR2.
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Hi,
You can also refer below Oracle notes :
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Hi,
I am using Jdeveloper 11.1.1.4 and WLS 10.3.4.
I have developed a POC in ADF mobile client application both with and without synchronization. However, both work with entity objects based on tables.
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Edited by: ansh on Mar 28, 2011 5:40 AM

Hi, Ansh:
Currently, out of box, ADF Mobile Client does not support synchronization against Database Views. This is because Mobile Server imposes some schema restrictions to ensure synchronization with multi-table views would work correctly. This schema restriction requires, for example, the view must have a primary parent table with key defined, and also all base table must be included in the data publication. These dependencies requires manual resolution and advanced planning, and is managed outside of the ADF Mobile Client/JDeveloper project.
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Is there any other reason why you would need to access data via database views, instead of directly against base tables?
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PDF Portfolio compatible on PC and Mac?

Hello,
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Hi,
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Dear,
What is the Difference between Golden Client and Master Client?
Thanx & Regards,
Mohammad Nabi,
[email protected]

Golden Client is similar or is the the same as Development Client, which should not be used for testing.
Master Client ???
Note on SAP Landscape:
Landscape is like a server system or like a layout of the servers or some may even call it the architecture of the servers viz. SAP is divided into three different landscape DEV, QAS and PROD.
- DEV would have multiple clients for ex: 190- Sandbox, 100- Golden, 180- Unit Test.
- QAS may again have multiple clients for ex: 300- Integration Test, 700 to 710 Training.
- PROD may have something like a 200 Production.
These names and numbers are the implementer's discreet on how they want it or they have been using in their previous implementations or how is the client's business scenario.
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Landscape : is the arrangement for the servers
IDES : is purely for education purpose and is NOT INCLUDED in the landscape.
DEVELOPMENT ---> QUALITY -
> PRODUCTION
DEVELOPMENT : is where the the consultants do the customization as per the company's requirement.
QUALITY : is where the core team members and other members test the customization.
PRODUCTION : is where the live data of the company is recorded.
A request will flow from Dev->Qual->Prod and not backwards.
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2. Development Server: - Once the BBP gets signed off, the configuration is done is development server and saved in workbench requests, to be transported to Production server.
3. Production Server: This is the last/ most refined client where the user will work after project GO LIVE. Any changes/ new development is done is development client and the request is transported to production.
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Presentaion Server- Where SAP GUI has.
Application Server - Where SAP Installed.
Database Server - Where Database installed.
Regards,
Rajesh Banka
Reward points if helpful

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Hi All...
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Thanks & Regards
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http://www.oracle.com/technology/products/forms/
FORMS UPGRADE INFORMATION:
http://www.oracle.com/technology/products/forms/htdocs/upgrade/
FORMS TECHNICAL WHITE PAPERS:
http://www.oracle.com/technology/products/forms/techlisting10gR2.html
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I know if I do a database copy from Production to our Quality system.
I need to install the license key
restore the production library to the quality library
Initialize TMS and so on.
I know if I want to copy to our Development system. I would need to run either a remote client copy or and export/import since I cannot do a database copy because I would loose all my other clients in Development.
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What does a database copy give you (besides being faser) that a remote client copy or export/import of a client copy does.
Any differences
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Joe

Hello Joe,
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My goal is this:
1) End user launches client.
2) Client connects to server.
3) User selects one or more files to send to server.
4) Server saves a copy of each file.
5) Server terminates connection.
5) Server processes each file.
6) Upon completion of the processing server sets a "processing completed flag."
7) Client periodically checks with server for "processing completed flag."
8) Client securely reconnects
9) Client downloads processed files.
I have no background in programming servers/clients so this will be a learning experience for me and the workflow described above may change as I learn more about how this all works. Currently my hope is to first implement a system that will stay connected while the files are processed and once I have a better understanding as to how that works I can add more complexity to the system.
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brettski wrote:Turns out the best way (so far as I can tell) is to go integer -> string -> byte and then byte -> string -> integer..
Do you mean regular, non-byte strings? That cannot possibly be the best way to do it. It would be like using Russian as an intermediary language for translating Spanish to French.
Maybe the following will set you on the right path:
http://stackoverflow.com/questions/6187 … -in-python
http://stackoverflow.com/questions/4445 … int-python
Looking further, this is probably the right way to do it:
some_int = 57
bytes = struct.pack('i', bytes)
sock.send(bytes)
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Get screenshot with mouse cursor and send for client application

I took
this function for getting a screenshot from a client application. I to tried adapt this function in my project, but I can not capture desktop showing mouse cursor (coming from a remote pc) in my server application (controller).
Here is my adaptation (in client side) but without success:
void SendScreenProc()
// Send First Bitmap
MemoryStream streamScreen = new MemoryStream();
this.bmpScreenSend = CaptureScreen(true);//new Bitmap(this.boundScreen.Width, this.boundScreen.Height, PixelFormat.Format24bppRgb);
Graphics g = Graphics.FromImage(this.bmpScreenSend);
g.CopyFromScreen(0, 0, 0, 0, this.boundScreen.Size);
this.bmpScreenSend.Save(streamScreen, System.Drawing.Imaging.ImageFormat.Png);
Compress.CompressStream(streamScreen);
Byte[] bufferScreen = streamScreen.ToArray();
mreSendData.WaitOne();
this.queueSendData.AddScreen(streamScreen.GetBuffer());
streamScreen.Close();
this.receivedScreen = 0;
while (this.remoted)
// Send next bitmap result by difference with previous bitmap.
if(this.receivedScreen == 0) {
} else {
Bitmap bmpCurrentScreen = CaptureScreen(true);//new Bitmap(this.boundScreen.Width, this.boundScreen.Height, PixelFormat.Format24bppRgb);
g = Graphics.FromImage(bmpCurrentScreen);
g.CopyFromScreen(0, 0, 0, 0, this.boundScreen.Size);
if (this.receivedScreen == 1) {
if(this.bmpScreen != null) {
this.bmpScreen.Dispose();
this.bmpScreen = this.bmpScreenSend;
} else if(this.receivedScreen == 2) {
if (queueSendData.AvailableScreenAdd && IsDifferent(bmpCurrentScreen, this.bmpScreen))
streamScreen = new MemoryStream();
Bitmap bmpDiff = XorBitmap(this.bmpScreen, bmpCurrentScreen);
bmpDiff.Save(streamScreen, System.Drawing.Imaging.ImageFormat.Png);
this.bmpScreenSend.Dispose();
bmpDiff.Dispose();
this.bmpScreenSend = bmpCurrentScreen;
mreSendData.WaitOne();
this.queueSendData.AddScreen(streamScreen.GetBuffer());
streamScreen.Close();
this.receivedScreen = 0;
else
bmpCurrentScreen.Dispose();
Thread.Sleep(30);

Hi FlashCoder,
Do you mean like this capture? Use mouse cursor to capture the specified area.
If so, here is a sample that I wrote. It should meet your requirement. If not, please feel free to let me know.
The following is ScreenForm code
public partial class ScreenForm : Form
public ScreenForm()
InitializeComponent();
public event copyToFatherTextBox copytoFather;
public bool begin = false;
public bool isDoubleClick = false;
public Point firstPoint = new Point(0, 0);
public Point secondPoint = new Point(0, 0);
public Image cachImage = null;
public int halfWidth = 0;
public int halfHeight = 0;
/*Copy the entire screen, and form fill the screen*/
public void copyScreen()
Rectangle r = Screen.PrimaryScreen.Bounds;
Image img = new Bitmap(r.Width, r.Height);
Graphics g = Graphics.FromImage(img);
g.CopyFromScreen(new Point(0, 0), new Point(0, 0), r.Size);
//Maximize form
this.Width = r.Width;
this.Height = r.Height;
this.Left = 0;
this.Top = 0;
pictureBox1.Width = r.Width;
pictureBox1.Height = r.Height;
pictureBox1.BackgroundImage = img;
cachImage = img;
halfWidth = r.Width / 2;
halfHeight = r.Height / 2;
this.Cursor = new Cursor(GetType(), "MyCursor.cur");
private void ScreenForm_Load(object sender, EventArgs e)
copyScreen();
/*Begins when the mouse is pressed screenshots*/
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
if(!isDoubleClick)
begin = true;
firstPoint = new Point(e.X, e.Y);
changePoint(e.X, e.Y);
msg.Visible = true;
/*Displayed when the mouse moves to intercept the border*/
private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
if (begin)
//Redraw the background image
secondPoint = new Point(e.X, e.Y);
int minX = Math.Min(firstPoint.X, secondPoint.X);
int minY = Math.Min(firstPoint.Y, secondPoint.Y);
int maxX = Math.Max(firstPoint.X, secondPoint.X);
int maxY = Math.Max(firstPoint.Y, secondPoint.Y);
Image tempimage = new Bitmap(cachImage);
Graphics g = Graphics.FromImage(tempimage);
//Picture cropping frames
g.DrawRectangle(new Pen(Color.Red),minX,minY,maxX-minX,maxY-minY);
pictureBox1.Image = tempimage;
//Calculation of coordinate information
msg.Text = "Upper left corner coordinates：(" + minX.ToString() + "," + minY.ToString() + ")\r\n";
msg.Text += "Lower right corner coordinates：(" + maxX.ToString() + "," + maxY.ToString() + ")\r\n";
msg.Text += "Screenshot size：" + (maxX - minX) + "×" + (maxY - minY) + "\r\n";
msg.Text += "Double-click end screenshots anywhere!";
changePoint((minX + maxX) / 2, (minY + maxY) / 2);
/*Dynamically adjusts the displayed location, enter the parameters for the current screen mouse position*/
public void changePoint(int x, int y)
if (x < halfWidth)
if (y < halfHeight)
{ msg.Top = halfHeight; msg.Left = halfWidth; }
else
{ msg.Top = 0; msg.Left = halfWidth; }
else
if (y < halfHeight)
{ msg.Top = halfHeight; msg.Left = 0; }
else
{ msg.Top = 0; msg.Left = 0; }
/*Screenshot is completed when you let go of the mouse operation */
private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
begin = false;
isDoubleClick = true;
/*When I double-click a screenshot when notifying parent form complete screenshot action, while closing the form*/
private void pictureBox1_DoubleClick(object sender, EventArgs e)
if (firstPoint != secondPoint)
int minX = Math.Min(firstPoint.X, secondPoint.X);
int minY = Math.Min(firstPoint.Y, secondPoint.Y);
int maxX = Math.Max(firstPoint.X, secondPoint.X);
int maxY = Math.Max(firstPoint.Y, secondPoint.Y);
Rectangle r = new Rectangle(minX, minY, maxX - minX, maxY - minY);
copytoFather(r);
this.Close();
//msg.Text = r.ToString();
This is the mainFrom code.
public delegate void copyToFatherTextBox(Rectangle r);
public partial class Form1 : Form
public Form1()
InitializeComponent();
/*Start screenshot*/
private void button1_Click(object sender, EventArgs e)
ScreenForm screen = new ScreenForm();
screen.copytoFather += new copyToFatherTextBox(copytoTextBox);
screen.ShowDialog();
/*Screenshot of subsequent operations*/
public void copytoTextBox(Rectangle rec)
Rectangle rec2=rec;
if(rec.Width>2&&rec.Height>2)
rec2= new Rectangle(rec.X + 1, rec.Y + 1, rec.Width - 2, rec.Height - 2);
Rectangle r = Screen.PrimaryScreen.Bounds;
Image img = new Bitmap(rec2.Width, rec2.Height);
Graphics g = Graphics.FromImage(img);
g.CopyFromScreen(rec2.Location, new Point(0, 0), rec2.Size);
Clipboard.SetDataObject(img, false);
richTextBox1.Paste();
Best regards,
Kristin
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Difference on developing client applications on PC and Mac platform.

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