Re: pass picture as parameter TO C# - C# Discussion Boards

22-Mar-11 2:46

Hi,

Please Haw can i pass a picture as parameter to Application C# ?

Pete O'Hanlon22-Mar-11 3:10

Pete O'Hanlon

22-Mar-11 3:10

Do you mean how do you pass a picture as a command line argument to a Windows Forms application? You need to be far more specific in your questions.

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MrKBA22-Mar-11 3:36

22-Mar-11 3:36

I have:
1.. MFC application (application of test)
2.. C# dll ( ActiveX control : COM)

I have implimented method in the Dll that receive Object (which I think it works) with name AddContextMenu(string A_strCaption, Object A_Icon);

So what I need is to Load a picture from Hard Disc and pass it as parameter for this method.

this is some code c++ where I have to call and pass the picture :

MyCtrlActiveX->AddContextMenu(_T("Assign PN"), ?????);

BobJanova22-Mar-11 3:47

BobJanova

22-Mar-11 3:47

Passing things like images across COM is not trivial.

I think you have control of both halves of the application, and your question is just about adding icons to context menus? You should pass the information that the C# control needs to construct the image, and create the image in C#, instead of trying to pass it across the bridge. (For example, store the icons as resources in the C# assembly and pass the name of the image to use.)

Your question is still not very specific, but I suspect it is a case of 'I wouldn't have started from here' and you should be able to find a good solution to your problem which doesn't require you to send complex objects across COM.

_Erik_22-Mar-11 3:51

_Erik_

22-Mar-11 3:51

Try passing the HBITMAP handle, so you can get the image in .NET with Image.FromHBitmap, or pass the string containing the image path on the hard disk, so you can get the image in .NET with Image.FromFile.

MrKBA22-Mar-11 4:07

22-Mar-11 4:07

can you explain more please.

_Erik_22-Mar-11 5:09

_Erik_

22-Mar-11 5:09

It's hard to tell... your questions are way too vague... Here you are some links to the documentation.

Image.FromHbitmap[^]
Image.FromFile[^]
LoadImage function[^]
Windows Data Types[^] (look for HBITMAP into this page).

Dan Mos22-Mar-11 3:13

Dan Mos

22-Mar-11 3:13

Be more specific. I have no ideea what exactly you want.

Pass a filename to the app args[] so that it(the app) opens the image automatically? Like in double clik from desktop?

Or form another app? or From/To a DB?

All the best,

Dan

MrKBA22-Mar-11 3:36

22-Mar-11 3:36

Paladin200022-Mar-11 4:42

Paladin2000

22-Mar-11 4:42

What kind of application? Console app? If so, just pass the filename as a command-line parameter and handle it in the code.

MrKBA22-Mar-11 5:14

22-Mar-11 5:14

No, it is a windows application MFC and I should pass the Image as paralmter , not just the path.

thank you

Xmen Real 22-Mar-11 5:43

Xmen Real

22-Mar-11 5:43

I think you need to use System.Diagnostics.Process.StandardInput[^]

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-----------------------------------------------
128 bit encrypted signature, crack if you can

MrKBA22-Mar-11 6:46

Need to Resolve the Error In Window Scheduler

22-Mar-11 6:46

more explication please if you can.

Swaranjeet Singh22-Mar-11 1:02

Swaranjeet Singh

22-Mar-11 1:02

Dear friends,
I have a window scheduler which pionts an exe.
This schduler failes while starting automatically where as if i run maunally, it is executed successfully.
Front End: DotNet 2.0
Back end: Oracle 9i
The error message which i get is
OCIEnvCreate failed with return code -1
I'm cluless.

Thanks & regards
SWARAN

Richard MacCutchan22-Mar-11 1:15

Richard MacCutchan

22-Mar-11 1:15

Swaranjeet Singh wrote:
OCIEnvCreate failed with return code -1
I'm cluless.

The first thing to do is to find the documentation for this function and see if you can determine what a status of -1 indicates. If it follows the usual patterns then there should be some more data somewhere that will give you a more specific reason.

I must get a clever new signature for 2011.

Swaranjeet Singh22-Mar-11 1:38

Swaranjeet Singh

22-Mar-11 1:38

thanks for your response.

The error which i got is
OCIEnvCreate failed with return code -1 but error message text was not available.
This error captured at the time of establishing connection to the database.

Luc Pattyn22-Mar-11 1:48

Luc Pattyn

22-Mar-11 1:48

Did you ask Google?
Here[^] is the first hit, I suggest you read it.

Smile | :)

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RobCroll22-Mar-11 1:52

RobCroll

22-Mar-11 1:52

Assuming both are running on the same machine, it sounds like a possible permissions issue. Does the account the Scheduler task is using have permissions set in the Oracle client config?

"You get that on the big jobs."

Pete O'Hanlon22-Mar-11 2:40

Pete O'Hanlon

22-Mar-11 2:40

It's probably a permissions issue as your windows service will be running under its own identity as opposed to your user identity. To resolve this, take a look at these threads 1[^] and 2[^].

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