make Invoke from main thread to secondary - C# Discussion Boards

Handle Touches in Windows to Hide/Show my Application

danielnbarros6-Jun-12 3:54

6-Jun-12 3:54

Hi,

Does anyone know how can I handle any touches in windows, even when my application is minimized?

The idea was to maximize/minimize it when the user touches the screen with 3 or 4 fingers.

I was trying to find some kind of event from COM, but I don't know even if that's the way to go.

Any help is very appreciated!!

Thanks!

Re: Handle Touches in Windows to Hide/Show my Application

Eddy Vluggen6-Jun-12 7:13

Eddy Vluggen

6-Jun-12 7:13

danielnbarros wrote:
Does anyone know how can I handle any touches in windows, even when my application is minimized?

A minimized application does not have input-focus, and will receive a lot less notifications from Windows.

With a keyboard, I'd suggest a keyboard hook to catch your "hotkey". With "touch", it might be confusing if someone inserts a device that does not support multi-touch.

Bastard Programmer from Hell Suspicious | :suss:

Screen Shot save C# ENG

vlad5536-Jun-12 1:55

vlad553

6-Jun-12 1:55

How to make a screenshot of the screen and put it in and save a PictureBox1 SaveFileDialo

modified 6-Jun-12 8:18am.

Re: Screen Shot save C#

Dave Kreskowiak6-Jun-12 2:00

Dave Kreskowiak

6-Jun-12 2:00

This is an English speaking site.

Translated:
How to make a screenshot of the screen and place it to PictureBox1 and save through SaveFileDialo < g

...

Do so, but I save it in the folder of the Nada program, and through the SaveFileDialog # WindowsForm

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

c# twain ImageMemXfer

lllws6-Jun-12 0:58

lllws

6-Jun-12 0:58

ImageMemXfer ?

Re: c# twain ImageMemXfer

Dave Kreskowiak6-Jun-12 1:59

Dave Kreskowiak

6-Jun-12 1:59

A single word with a question mark after it does not make a question.

We have no idea what you want.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Re: c# twain ImageMemXfer

Eddy Vluggen6-Jun-12 3:31

Eddy Vluggen

6-Jun-12 3:31

Yes, then turn left twice and sacrifice a chicken.

Bastard Programmer from Hell Suspicious | :suss:

make Invoke from main thread to secondary

Talon_Karrde5-Jun-12 21:59

Talon_Karrde

5-Jun-12 21:59

I have a component for playing, which, unfortunately, work in current thread. So, when i have an action in main thread, which duration more than player buffer, i have a delay in playing. I want to create this component in secondary thread. But if i call Start or Stop playing from main thread, it fall with exception or hang. So i need to call this component from this secondary thread(maybe with invoke or something else). How can i do this?

Re: make Invoke from main thread to secondary

Eddy Vluggen6-Jun-12 3:31

Eddy Vluggen

6-Jun-12 3:31

If the control is displaying something, then it should be created on the mainthread. Can you post some code? And what does "fall with exception or hang" mean? If the framework throws an Exception, it'll contain a message explaining what went wrong. It helps in diagnosing problems if you explained what type of exception you get, and what the message is.

Bastard Programmer from Hell Suspicious | :suss:

Re: make Invoke from main thread to secondary

BobJanova6-Jun-12 4:16

BobJanova

6-Jun-12 4:16

Is it a UI component? If so, you will have to leave it in the 'main' thread, and you should do your extended processing in a background thread (and, if you need to communicate with the component, you should use BeginInvoke or Invoke as you mention).

If not, you can put it in another thread, but you might have to write a wrapper to allow you to communicate with it across threads since Invoke is only provided on Control.

Re: make Invoke from main thread to secondary

Talon_Karrde10-Jun-12 21:00

Talon_Karrde

10-Jun-12 21:00

Sorry for long time silence. It isn't ui component. Just .net wrapper for playing sound files
PlayerEx playerEx = new PlayerEx();

playerEx.OpenPlayer(_format);
_playerEx.AddData(data);
_playerEx.StartPlay();

And in another moment i want to call
playerEx.Stop().
And usually function hungs on this moment

C#, Outlook 2010, and Attaching Signatures

SRoyalty5-Jun-12 1:51

SRoyalty

5-Jun-12 1:51

I am using a WinForm for filling out templates, in which the user can Click Send to open a New Message in Outlook (it uses the default account) and places the template in as HTMLBody.

I have seen all the different ways to read the files manually to insert signatures, but that doesn't fit my situation. My users will have multiple Outlook Exchange accounts configured, but only 1 will be used with the templates. The question is, how can I read the account type I want (if anything, based on name or server address) in order to get the signature set up for it?

I guess worse case scenario I could make everyone use the same name for the Signature which would make reading it in manually easier. However, there should be a way to read the account and needed signature for the specific account via VSTO or Interop without scanning files in a directory and play hit or miss.

Screen Capture API

Arjun Menon U.K5-Jun-12 0:51

Arjun Menon U.K

5-Jun-12 0:51

Is there any API to get the screencapture of a web browser

Re: Screen Capture API

Dave Kreskowiak5-Jun-12 1:37

Dave Kreskowiak

5-Jun-12 1:37

No, but you can write your own code to do whatever it is you need.

Capturing a window image is as easy as Alt-PrtScr, you could use the Graphics.CopyFromScreen[^] method to capture what's on screen.

Or, there's even an article here[^] to convert a web page to an image.

Or you can dig through the results of Googling for "c# capture web page as image[^]" to see if anything fit what's you trying to do.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak

Integer to Time Conversion

ochieman20004-Jun-12 13:11

ochieman2000

4-Jun-12 13:11

SQL

I need in a console application to have user input an integer in military time that be converted some how to 13:00 or 13:30 instead of 1330 the pure number.

So that I can then take 1330 and have the user input an end time like 1430 and increase it by 25 percent to come out with 1445 or 2:45. So your increases the total time from 1 hour to 1 hour and 15 minutes.

The input will always be HHMM in military time

Simple Function is needed nothing advanced

Re: Integer to Time Conversion

Mycroft Holmes4-Jun-12 14:17

Mycroft Holmes

4-Jun-12 14:17

So what have you written?

You seem to have the wrong idea what this forum is for, we help budding developers improve their skills and learn, we do not supply solutions, that is your job.

There are other sites that will supply the solution for a minimal payment, you may want to try there!

Never underestimate the power of human stupidity
RAH

Re: Integer to Time Conversion

PIEBALDconsult4-Jun-12 15:42

PIEBALDconsult

4-Jun-12 15:42

I expect that one of the Parse methods of System.DateTime is all you need -- no integer is necessary.

And why does this sound like homework? Unsure | :~

"HHMM in ~~military~~ ISO 8601[^] time"

FTFY

modified 4-Jun-12 21:51pm.

Re: Integer to Time Conversion

ochieman20004-Jun-12 15:43

ochieman2000

4-Jun-12 15:43

Your darn right its homework. Seeing as original thought doesn't exist and I have spent the better part of the day wrestling with this. I reached out to the community for insight.

Re: Integer to Time Conversion

PIEBALDconsult4-Jun-12 16:24

PIEBALDconsult

4-Jun-12 16:24

If that's the better part I don't want to see the worse part. Big Grin | :-D

Re: Integer to Time Conversion

VJ Reddy4-Jun-12 16:57

VJ Reddy

4-Jun-12 16:57

I think the following points may be helpful.
Use DateTime.ParseExact to parse the time

DateTime startTime = DateTime.ParseExact("1330","HHmm",
	 System.Globalization.CultureInfo.InstalledUICulture);

similarly parse the end time.

Now find the duration between end time and start time using the Subtract method of DateTime object which returns a TimeSpan object.

Then get the total minutes using the TotalMinutes method of TimeSpan object.

Use the AddMinutes method of DateTime to add minutes to the end time

Then get the string representation of modified end time using

string endTimeString = endTime.ToString("HHmm",
	System.Globalization.CultureInfo.InvariantCulture);

modified 4-Jun-12 23:17pm.

Adding a Hover event to this Custom Textbox Control?

nickslick4-Jun-12 12:40

nickslick

4-Jun-12 12:40

Hello CodeProject Smile | :)

I've been using this textbox custom control: AlphaBlendTextBox - A transparent/translucent textbox for .NET[^]

and like others, I am having problems using Events Cry | :((

When I tried using the Hover event, nothing would happen when I Hovered over the Custom Textbox.
I know usually it would be better to ask the creator of it, but he's not responding to any questions sadly. This custom control is very important to me & would love it if someone could kindly help me Blush | :O

I would be very thankful, thanks

Re: Adding a Hover event to this Custom Textbox Control?

BobJanova6-Jun-12 3:07

BobJanova

6-Jun-12 3:07

I don't know how that works, but from a quick skim, I'd look at where the events get forwarded from the PictureBox to the actual control.

Also the whole thing seems like a dirty hack and you might be better off doing a custom control and writing the text editing logic separately.

Using Open-Type font in C#

Alan Balkany4-Jun-12 8:36

Alan Balkany

4-Jun-12 8:36

Hi all,

My application lets a user select a True Type font from the FontFamily.Families enumeration:

foreach (FontFamily ff in FontFamily.Families)
{
    if(ff.IsStyleAvailable(FontStyle.Regular))
        fontCombo.Items.Add(ff.Name);
}

This doesn't work for Open Type fonts, e.g. I just installed Costura Light, and it's now available in MS Word, but invisible to my enumeration above.

Googling doesn't reveal any solution to this; all the sites just assume the font is there after you install it.

What do I have to do to make Open-Type fonts available? Thanks!

=========================

EDIT -- THERE'S NO SIMPLE WAY TO DO THIS: GDI+ ONLY SUPPORTS TRUE TYPE. THERE'S A CONVOLUTED WAY TO USE GDI FOR OPEN-TYPE FONTS FROM MANAGED C++ DESCRIBED HERE: http://www.codeguru.com/cpp/g-m/gdi/fonthandlinganddetection/article.php/c10621/Make-GDI-Less-Finicky-About-Fonts.htm[^]

"Microsoft -- Adding unnecessary complexity to your work since 1987!"

modified 4-Jun-12 16:09pm.

OOPS Case Study

Kris Erukulla4-Jun-12 5:37

Kris Erukulla

4-Jun-12 5:37

Can someone please provide a sample code which explains all features of OOPS in C#.

Thanks in advance.

Kris

kriskan

Re: OOPS Case Study

Luc Pattyn4-Jun-12 5:52

Luc Pattyn

4-Jun-12 5:52

Can someone please explain what the S stands for in OOPS?

could it be OOPSS for object-oriented programming self study?

D'Oh! | :doh:

Luc Pattyn [My Articles] Nil Volentibus Arduum

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