C# Discussion Boards - CodeProject

ShaneStump28-Dec-03 10:48

28-Dec-03 10:48

Thanks for responding but you did NOT read what I was asking for.

I wasn't asking how to output text. I am asking how to get the SIZE of the text BEFORE it is displayed (i.e. in WIN32, DrawText(Handle,string,string length,RECT *,DT_WORDWRAP | DT_CALCRECT)).

I have NOT had any luck with the Graphic's class MeasureString() method.

Happy Holidays,

Shane

Re: WIN32 DrawText() .NET equivalent??

Nick Parker28-Dec-03 11:02

Nick Parker

28-Dec-03 11:02

ShaneStump wrote:
I have NOT had any luck with the Graphic's class MeasureString() method.

Specifically what problems are you having with MeasureString()? Have you tried to P/Invoke DrawText()?

- Nick Parker
My Blog

Re: WIN32 DrawText() .NET equivalent??

ShaneStump28-Dec-03 11:11

ShaneStump

28-Dec-03 11:11

MeasureString() doesn't return what I want (or I can't get it to).

I want it to return the # height of the string if wrapping occurs (if the string requres 5 lines, I want the returned height to be for the 5 lines). I am probably NOT using the right method.

Happy Holidays,

Shane

Re: WIN32 DrawText() .NET equivalent??

Nick Parker28-Dec-03 11:34

Nick Parker

28-Dec-03 11:34

ShaneStump wrote:
I want it to return the # height of the string if wrapping occurs (if the string requres 5 lines, I want the returned height to be for the 5 lines). I am probably NOT using the right method.

Hmm, the MeasureString method is overloaded, and if you know the maximum width in pixels that your control will represent (I don't know if you will know this?) then you can make a call as such which will take into account wrapping.

private SizeF MyMeasureMethod(PaintEventArgs e)
{
  string s = "Nick";
  Font f = new Font("Arial", 12);
  int width = 300;
  SizeF strSize = new SizeF();
  strSize = e.Graphics.MeasureString(s, f, width);
  return strSize;
}

- Nick Parker
My Blog

Re: WIN32 DrawText() .NET equivalent??

ShaneStump28-Dec-03 11:46

ShaneStump

28-Dec-03 11:46

Thank you very much (I didn't realize passing in just a width would return the calculated height)!

Happy Holidays,

Shane

TreeView

Luther Baker28-Dec-03 7:48

Luther Baker

28-Dec-03 7:48

I'm fairly new to C# and WinForms programming.

How does one programmatically "select" a node in a TreeView.

IE: the user clicks a button which spawns a child process, the output of which is displayed in a TextBox. Each time the user clicks that button, a new process is kicked off and I attach a new node to the TreeView to represent said process. If the user clicks on any given node, that node's associated process output TextBox is brought to the foreground - whre you can watch the output.

Adding the node to the TreeView is straightforward, but hilighting it or "selecting" it programmatically is not so easy.

Suggestions?

-Luther

Re: TreeView

Tristan Rhodes28-Dec-03 8:37

Tristan Rhodes

28-Dec-03 8:37

Isn't there a:

treeview.setActiveNode(node) method?

if you create the node as a variable first, then add it, and set the variable to the active node, it should do it.

I had this problem with seting the active node of a tree view when it first gets control.

Cata

Re: TreeView

Heath Stewart28-Dec-03 8:58

Heath Stewart

28-Dec-03 8:58

Active and Selected are two completely different things. Active just means that the node has the focus, such as what it gains when you right-click the node. Selected means that the node has been left-clicked at some point. To select a node programmatically, just use the following:

treeview.SelectedNode = someNode;

-----BEGIN GEEK CODE BLOCK-----
Version: 3.21
GCS/G/MU d- s: a- C++++ UL@ P++(+++) L+(--) E--- W+++ N++ o+ K? w++++ O- M(+) V? PS-- PE Y++ PGP++ t++@ 5 X+++ R+@ tv+ b(-)>b++ DI++++ D+ G e++>+++ h---* r+++ y+++
-----END GEEK CODE BLOCK-----

Ye - That one

Tristan Rhodes28-Dec-03 14:22

Tristan Rhodes

28-Dec-03 14:22

That's what I was looking for.

Thanks

Luther Baker30-Dec-03 5:09

Luther Baker

30-Dec-03 5:09

The obvious escaped me.

Thank you both.

-LutherB

Re: TreeView

Luther Baker30-Dec-03 9:51

Luther Baker

30-Dec-03 9:51

After doing this - indeed the "selected" image appears to the left of the tree node (from the ImageList index used when creating the node) but, the actual text of the node is not "highlighted. IE: the folder opens, but the folder name is not highlighted.

This is even more obvious when working with a ListView. I've selected a particular ListViewItem, but no rectangular, reverse color block around the text of the item appears onscreen.

Maybe I am doing something wrong - or missing something? Without the highlighted text, its not really obvious which element has been selected.

Thanks,

-Luther

Re: TreeView

Heath Stewart30-Dec-03 10:59

Heath Stewart

30-Dec-03 10:59

Out of curiousity, does the rectangular marquee (the dotted lines) around the text appear? If so, the TreeView no longer seems to have the focus. Set TreeView.HideSelection to false and see if the rectangular selection region is at least gray (or whatever the default system color for inactive selected text is).

Re: TreeView

Luther Baker31-Dec-03 4:47

Luther Baker

31-Dec-03 4:47

Excellent - a grey "highlight" block appears around the text now - for both the visible ListView and TreeView.

Its not the normal (per my theme) "blue" highlight, but its a clear indication to the user - which is my real goal.

Thanks Again,

-LutherB

Re: TreeView

Luther Baker31-Dec-03 4:56

Luther Baker

31-Dec-03 4:56

Aha ...

I understand now. Makes perfect sense. The issue of "focus" that is.

One more line, TreeView.focus() does the final trick.

Thanks,

-Luther

C Pre Processor executable

Tristan Rhodes28-Dec-03 5:38

Tristan Rhodes

28-Dec-03 5:38

I'm trying to run midl, however, I am encountering error after error.

Cl.exe was not located in the correct location.

when i moved it, there was no mspdb70.dll to support CL.exe.

These components were all in different folders.

Is this right? Or is my instalation of .NET completely knackered?

Is it worth moving all the tools and associated DLL's into one directory? As it's really annoying.

Cata

Re: C Pre Processor executable

Tristan Rhodes28-Dec-03 5:44

Tristan Rhodes

28-Dec-03 5:44

I've copied all the stuff in the Vc7\bin folder to the common7\tools\bin folder.

I've moved the objidl.idl file into the tools\bin directory.

It's still not building objidl.idl. I get the error "Cannot open unkwn.idl"

help! Frown | :(

Cata

Re: C Pre Processor executable

Nick Parker28-Dec-03 5:56

Nick Parker

28-Dec-03 5:56

What does your .idl file look like?

- Nick Parker
My Blog

Re: C Pre Processor executable

Tristan Rhodes28-Dec-03 6:08

Tristan Rhodes

28-Dec-03 6:08

its the objidl.idl file, taken from the platform SDK Folder in VS.net.

I'm moving the post to the COM forum.

My bad.

Smile | :)

Cata

Re: C Pre Processor executable

leppie28-Dec-03 5:57

leppie

28-Dec-03 5:57

This is not C# any more, move to the COM forums. ANyways, you are getting that error because your command enviroment is not setup correctly.

leppie ::AllocCPArticle("Zee blog");
Seen on my Campus BBS: Linux is free...coz no-one wants to pay for it.

Re: C Pre Processor executable

Heath Stewart28-Dec-03 6:58

Heath Stewart

28-Dec-03 6:58

Which is why I've been trying to get Catalyst to understand that in a separate thread. I mean, if you can't even understand environment variables, why would anyway think to tackle COM? That's like trying to climb Everest or K2 without making it up the front steps to the lobby (if it has one?)!

Re: C Pre Processor executable

S. Senthil Kumar29-Dec-03 1:47

S. Senthil Kumar

29-Dec-03 1:47

Just run the vcvars32.bat found in "Microsoft Visual Studio .NET 2003\Vc7\bin" in the command line before trying to run MIDL

objidl Type Libraries Query

28-Dec-03 4:07

I'd like to use the TlbImp.exe program to build some managed COM objects. This seems to be the most efficient way of doing things.

The problem I have is that, what I am looking for resides in the objidl header file. DOesn't this compile to a DLL?

While there are many type libraries, I do not know which one would contain the data I need, if any. Which would it be?

If they are not located there, How do i extract data from an unmanaged DLL?

Cheers

Cata

More information here

28-Dec-03 4:15

Sorry, little more information here.

This relates to my Drag Drop problem. Basicaly, I'm looking for the COM classes used for the process to convert them into managed times. I'm not even sure I have the right one.

It looks like the Object Information Data Librarby class.

When I attempt to extract the library definitions from ole32.dll, I get the error: "Unable to locate input type library"

Cata

Re: More information here

Heath Stewart28-Dec-03 4:26

Heath Stewart

28-Dec-03 4:26

If you want to do things this way, you must create an IDL file (don't use headers and don't worry about compiling to a DLL) and import additional IDL files when necessary. Interface documentation should list what IDL file they are found in. If not, check for a similar IDL file that matches the name of the header file (filename.h to filename.idl).

Take a look at the following CP article which gives an example of how to go from IDL files -> midl.exe -> typelib -> tlbimp.exe -> interop assembly: Using MSHTML Advanced Hosting Interfaces[^].

Re: More information here

Nick Parker28-Dec-03 4:38

Nick Parker

28-Dec-03 4:38

Heath Stewart wrote:
Take a look at the following CP article which gives an example of how to go from IDL files -> midl.exe -> typelib -> tlbimp.exe -> interop assembly: Using MSHTML Advanced Hosting Interfaces[^].

You beat me to it, I was looking for the link to that article to post a reply and thought I would check to see if you had posted a reply yet. Cool | :cool:

- Nick Parker
My Blog

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