Howto Patch an existing application? - C# Discussion Boards

Re: Reducing color depth of an image in c#

CyberKewl28-Jul-03 13:03

28-Jul-03 13:03

I was trying to convert a 1024x768 image and i got an out of memory error (i have around 200mb free out of 512mb so that's not possible). Is there a workaround?

Re: Reducing color depth of an image in c#

J. Dunlap28-Jul-03 13:08

J. Dunlap

28-Jul-03 13:08

CyberKewl wrote:
I was trying to convert a 1024x768 image and i got an out of memory error

Roll eyes | :rolleyes:

I don't know why that happens.

CyberKewl wrote:
Is there a workaround?

Not that I know of - any way you do it, you're going to have to create 2 different bitmaps. But it really should work. What's your OS?

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: Reducing color depth of an image in c#

CyberKewl28-Jul-03 13:30

CyberKewl

28-Jul-03 13:30

Windows XP SP1

Re: Reducing color depth of an image in c#

CyberKewl28-Jul-03 13:36

CyberKewl

28-Jul-03 13:36

Ok i've just tried again but changed the pixelformat to PixelFormat.Format24bppRgb but the filesize and the color depth did not change at all (i saved newbmp as png).

Re: Reducing color depth of an image in c#

J. Dunlap28-Jul-03 13:45

J. Dunlap

28-Jul-03 13:45

So what's your starting pixel format and what's your new pixel format?

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: Reducing color depth of an image in c#

Anonymous28-Jul-03 14:42

Anonymous

28-Jul-03 14:42

I'm using the default which is 32bpp i think, i didn't change the pixelformat for the original, only the destination one as mentioned earlier to 24bpp...

Re: Reducing color depth of an image in c#

Russell Morris28-Jul-03 19:09

Russell Morris

28-Jul-03 19:09

Internally, GDI+ represents all bitmap/drawing data as 32bpp. As far as I am aware, none of the standard Microsoft image codecs (bmp,jpg,png,etc...) will do any sort of color conversion for you.

--
Russell Morris

"So, broccoli, mother says you're good for me... but I'm afraid I'm no good for you!" - Stewy

Howto Patch an existing application?

Don Miguel27-Jul-03 22:59

Don Miguel

27-Jul-03 22:59

Hello,

I have to patch an existing web application, which has multiple layers and components and is deployed on many servers. Which is the way to do this in .net?

Thanks,
Don Miguel

Re: Howto Patch an existing application?

joan_fl28-Jul-03 10:50

joan_fl

28-Jul-03 10:50

You can use this:

AppUpdater

Or the No Touch Deployment option from Microsoft... I like this solution the best actually Smile | :)

No Touch Deployment

double[,] into double[]

novachen27-Jul-03 22:38

novachen

27-Jul-03 22:38

Hi!
I get a data in double[100,100]. but i have to transfer it into a function which accept double[]. I just "(double [])data", but doesn't permit.
Any idea?

Re: double[,] into double[]

Daniel Turini28-Jul-03 3:04

Daniel Turini

28-Jul-03 3:04

novachen wrote:
Hi!
I get a data in double[100,100]. but i have to transfer it into a function which accept double[]. I just "(double [])data", but doesn't permit.
Any idea?
You can't. You only can pass double[n], where 0 <= n < 100. As an alternative, copy the whole double[100,100] to a linear double[10000].

// Quantum sort algorithm implementation
while (!sorted) 
     ;

HIDDEN SQL SERVER

eggie527-Jul-03 21:29

eggie5

27-Jul-03 21:29

UH... isn't the sql server installization file stored somewhere once you install vs.net???

where is it... if i remember correctly it was kinda hidden...

/\ |_ E X E GG

Re: HIDDEN SQL SERVER

Alexander Kojevnikov27-Jul-03 23:23

Alexander Kojevnikov

27-Jul-03 23:23

VS.NET 2003 doesn't include MSDE. You can download MSDE 2000 from http://microsoft.com/sql/msde/downloads/default.asp[^]

Alexandre Kojevnikov
MCAD charter member
Leuven, Belgium

Re: HIDDEN SQL SERVER

Rbledwards28-Jul-03 11:14

Rbledwards

28-Jul-03 11:14

If you mean MSDE it should be under the VS.Net folder. For example:

c:\Program Files\Microsoft Visual Studio .NET\Setup\MSDE\

Robert

Re: HIDDEN SQL SERVER

eggie528-Jul-03 12:30

eggie5

28-Jul-03 12:30

Yes, that's it thanks.
Frown | :(

/\ |_ E X E GG

What the timer is for...

eggie527-Jul-03 18:53

eggie5

27-Jul-03 18:53

Ok...

now what exactly is the timer for...

Actually timing how long it takes somthing to finish...

or for,

scheduling somthing to execute at a certain time...

???

/\ |_ E X E GG

Re: What the timer is for...

J. Dunlap27-Jul-03 19:18

J. Dunlap

27-Jul-03 19:18

A timer is for repeatedly (or once) doing something at a specified interval - for use if you want to do something once every xx seconds.

GetTickCount() or QueryPerformanceCounter() is used for finding out how long something takes to complete.

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: What the timer is for...

eggie527-Jul-03 20:24

eggie5

27-Jul-03 20:24

MSDN says it retrieves the number of milliseconds the system has been running...

how could I it to tell how long it was since a for loop started 'till it ends?

Re: What the timer is for...

J. Dunlap27-Jul-03 21:03

J. Dunlap

27-Jul-03 21:03

By calling it before you start, and then again when you finished, and subtracting the starting number from the ending number. This will give you the number of milliseconds the operation took.

int ctr=GetTickCount();
//--do some work here--
ctr=GetTickCount-ctr;
//ctr will now contain the # of 
//milliseconds your operation took

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

Re: What the timer is for...

eggie527-Jul-03 21:06

eggie5

27-Jul-03 21:06

Thanks... I also checked out the awsome timing article by Daniel S.

Check it out http://www.codeproject.com/useritems/HighPerformanceTimerCShar.asp?df=100&forumid=4400&noise=5&app=50&select=564840#xx460194xx

/\ |_ E X E GG

Re: What the timer is for...

J. Dunlap27-Jul-03 21:08

J. Dunlap

27-Jul-03 21:08

eggie5 wrote:
I also checked out the awsome timing article by Daniel S.

Thanks for the link - I'll add it to my toolbox. I've wanted to make something like that, but so far I've not had a compelling reason to do it, so I never did it.

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

showing a windows form when selected menu option

rasaleela27-Jul-03 18:39

rasaleela

27-Jul-03 18:39

Hi,

I want to know the code to show a windows from when i select a choice from menu.

In VB6 the command is as below, pls tell me equivalent code in C#.thanks

form1.show

Roll eyes | :rolleyes:

Re: showing a windows form when selected menu option

Nick Parker27-Jul-03 18:42

Nick Parker

27-Jul-03 18:42

Add the following inside the function that handles the specific menu option you are talking about. In this example, Form1 is the name of your class, f is just an instance of Form1 which you will work with.

Form1 f = new Form1();
f.Show();

-Nick Parker

Capture windows Key.

Nick Seng27-Jul-03 17:21

Nick Seng

27-Jul-03 17:21

I have an application that's running in the background. How do I enable it to catch keys pressed so I can route it to an event?

Nick Seng (the programmer formerly known as Notorious SMC)

God, I pity me! - Phoncible P. Bone

Re: Capture windows Key.

J. Dunlap27-Jul-03 17:26

J. Dunlap

27-Jul-03 17:26

If it's only for one key or a few keys, you might want to register a hotkey. Otherwise, you might try a system-wide journal hook.

BTW, it might help us if you tell us why you need this capability. Wink | ;)

"Blessed are the peacemakers, for they shall be called sons of God." - Jesus

"You must be the change you wish to see in the world." - Mahatma Gandhi

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