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.NET Forum / Windows Forms / Drawing / May 2008

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ThreadLast Post  Replies
Error Saving EMF Metafile from Clipboard13 May 2008 00:20 GMT6
I have a C# application that monitors the clipboard.  When an EMF
comes through, I get the EMF data from the clipboard and attempt to
save it off as a TIFF image.  When I do so, I get "A generic error
occurred in GDI+" error.  Marshal.GetWin32LastError returns 127
Displaying high-res images in .NET?12 May 2008 14:12 GMT14
.NET 1.1/2.0
I have a need to display high-resolution scrollable images in a .NET
application (Windows Forms). One well known solution is to create a
Panel with AutoScroll set to "true" and then add a PictureBox or
Matrox cards for GDI+ accelleration?09 May 2008 23:11 GMT3
Is anyone using the old Matrox Parhelia (or any other) cards that
supposedly offered hardware acceleration of GDI+?  If so, I'd like to
hear your comments on the performance.
Although these cards are old, I have a 2d graphics intensive demo
OptimizedDoubleBuffer and Layered Window!09 May 2008 14:40 GMT2
I've a layered window where I put a control in it to show as a popup. I'm
providing rounded borders as well.
I'm using Vista as My test environment and today noticed a strange thing.
When Glass is enabled, there is no problem but when it's disabled (Vista
What is the Max pixel value for DrawLine()?09 May 2008 07:49 GMT1
I saw a previous post with this same basic question back in 2005 but
it doesn’t look like anyone really answered the question of what the
max is.  I also found it (empirically) to be about 1.1. billion but I
don’t feel right hard coding an empirically found number.
Exception in Bitmap.Save08 May 2008 03:33 GMT1
I am facing some problem in Bitmap.Save function...
Here is the scenario:
- Create a bitmap image A from a bitmap file
- Create a bitmap image B with same attributes as bitmap image A
does GetFormats return CF_DIBV5 if it is present on the clipboard07 May 2008 14:03 GMT1
If there is a format on the clipboard
that is not represent in DataFormats,
say, CF_DIBV5 does GetFormats return it?
and can GetDataPresent and GetData handle it?
Amazing image done by single line in 188401 May 2008 16:35 GMT2
I received this picture on the e-mail .
Have been working on  1884 .
This work was done only by single line, starting from the nose and
ending the lower part, as shown on the image
 
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