I asked this in the VB NG and didn't get a response. I think this NG is no
apt to know this kind of thing so I'm trying here.
Trying to display the palette that is on the clipboard.
I get a palette from the clipboard and I want to make the picturebox display
it and realize it as its palette.
Actually the picturebox is on a usercontrol which is on the form containing
this code.
I get the palette OK and draw it but the colors are dithered so I assume my
attempt to realize it failed.
Any help would be appreciated
lHDataPalette = User.GetClipboa rdData(CF_PALET TE)
lNumDataPalette Entries = GDI.GetPaletteE ntries(lHDataPa lette, 0, 256,
lDataLogPal.pal PalEntry)
User.CloseClipb oard()
If lNumDataPalette Entries <> 0 Then
Dim lHDataPal As IntPtr
Dim lHPrevPal As IntPtr
Dim lHDCPic As IntPtr
lDataLogPal.pal Version = &H300S
lDataLogPal.pal NumEntries = 256
lHDCPic = User.GetDC(Cont rolPicture1.Pic Handle)
lHDataPal = GDI.CreatePalet te(lDataLogPal)
lHPrevPal = GDI.SelectPalet te(lHDCPic, lHDataPal, 0)
GDI.RealizePale tte(lHDCPic)
lHDataPal = GDI.SelectPalet te(lHDCPic, lHPrevPal, 0)
User.ReleaseDC( Handle, lHDCPic)
GDI.DeleteObjec t(lHDataPal)
4  4100 
" Just Me" <gr****@a-znet.com> wrote in message
news:uk******** ******@TK2MSFTN GP15.phx.gbl... I asked this in the VB NG and didn't get a response. I think this NG is no
apt to know this kind of thing so I'm trying here.
Trying to display the palette that is on the clipboard.
I am not sure what you are after.
I have a program available that displays all MS colours
and a program with which you can mix colours.
I would be happy to post them to you.
I'd like to see them as an educational tool.
But I want to display a palette from the clipboard.
I can get it and draw the colors but since the colors do not match the
screens palette they are dithered.
I'd like to make the picturebox use the palette I got from the clipboard.
I think the code I gave is close but doesn't seem to remove the dither -
like maybe the palette I tried to realize didn't take effect.
Thanks
"Adrian" <xx*@xxx.xx> wrote in message
news:ad******** *************** ****@freeler.nl ... " Just Me" <gr****@a-znet.com> wrote in message
news:uk******** ******@TK2MSFTN GP15.phx.gbl... I asked this in the VB NG and didn't get a response. I think this NG is
no
apt to know this kind of thing so I'm trying here.
Trying to display the palette that is on the clipboard.
I am not sure what you are after.
I have a program available that displays all MS colours
and a program with which you can mix colours.
I would be happy to post them to you.
I don't know if this is possible. Before I investigate further would you
tell me why you need to do this? If you're running .NET I would have thought
that a machine that handles more than 256 colours is pretty much a
prerequisite?
--
Bob Powell [MVP]
Visual C#, System.Drawing
Find great Windows Forms articles in Windows Forms Tips and Tricks http://www.bobpowell.net/tipstricks.htm
Answer those GDI+ questions with the GDI+ FAQ http://www.bobpowell.net/faqmain.htm
All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.
" Just Me" <gr****@a-znet.com> wrote in message
news:uk******** ******@TK2MSFTN GP15.phx.gbl... I asked this in the VB NG and didn't get a response. I think this NG is no
apt to know this kind of thing so I'm trying here.
Trying to display the palette that is on the clipboard.
I get a palette from the clipboard and I want to make the picturebox
display it and realize it as its palette.
Actually the picturebox is on a usercontrol which is on the form
containing this code.
I get the palette OK and draw it but the colors are dithered so I assume
my attempt to realize it failed.
Any help would be appreciated
lHDataPalette = User.GetClipboa rdData(CF_PALET TE)
lNumDataPalette Entries = GDI.GetPaletteE ntries(lHDataPa lette, 0, 256,
lDataLogPal.pal PalEntry)
User.CloseClipb oard()
If lNumDataPalette Entries <> 0 Then
Dim lHDataPal As IntPtr
Dim lHPrevPal As IntPtr
Dim lHDCPic As IntPtr
lDataLogPal.pal Version = &H300S
lDataLogPal.pal NumEntries = 256
lHDCPic = User.GetDC(Cont rolPicture1.Pic Handle)
lHDataPal = GDI.CreatePalet te(lDataLogPal)
lHPrevPal = GDI.SelectPalet te(lHDCPic, lHDataPal, 0)
GDI.RealizePale tte(lHDCPic)
lHDataPal = GDI.SelectPalet te(lHDCPic, lHPrevPal, 0)
User.ReleaseDC( Handle, lHDCPic)
GDI.DeleteObjec t(lHDataPal)
In photshop you can develop for indexed 256 colors and coping to the
clipboard puts a palette there.
I want to display it.
BTW; While testing I put my display into 256 color mode and XP works find.
Maybe I just don't understand but I'd guess that if I realize a palette in
the picturebox HDC I should be able to display all those colors in the
picturebox without dithering.
Thanks for the interest
"Bob Powell [MVP]" <bob@_spamkille r_bobpowell.net > wrote in message
news:%2******** *******@TK2MSFT NGP15.phx.gbl.. . I don't know if this is possible. Before I investigate further would you
tell me why you need to do this? If you're running .NET I would have
thought that a machine that handles more than 256 colours is pretty much a
prerequisite ?
--
Bob Powell [MVP]
Visual C#, System.Drawing
Find great Windows Forms articles in Windows Forms Tips and Tricks
http://www.bobpowell.net/tipstricks.htm
Answer those GDI+ questions with the GDI+ FAQ
http://www.bobpowell.net/faqmain.htm
All new articles provide code in C# and VB.NET.
Subscribe to the RSS feeds provided and never miss a new article.
" Just Me" <gr****@a-znet.com> wrote in message
news:uk******** ******@TK2MSFTN GP15.phx.gbl...I asked this in the VB NG and didn't get a response. I think this NG is
MORE apt to know this kind of thing so I'm trying here.
Trying to display the palette that is on the clipboard.
I get a palette from the clipboard and I want to make the picturebox
display it and realize it as its palette.
Actually the picturebox is on a usercontrol which is on the form
containing this code.
I get the palette OK and draw it but the colors are dithered so I assume
my attempt to realize it failed.
Any help would be appreciated
lHDataPalette = User.GetClipboa rdData(CF_PALET TE)
lNumDataPalette Entries = GDI.GetPaletteE ntries(lHDataPa lette, 0, 256,
lDataLogPal.pal PalEntry)
User.CloseClipb oard()
If lNumDataPalette Entries <> 0 Then
Dim lHDataPal As IntPtr
Dim lHPrevPal As IntPtr
Dim lHDCPic As IntPtr
lDataLogPal.pal Version = &H300S
lDataLogPal.pal NumEntries = 256
lHDCPic = User.GetDC(Cont rolPicture1.Pic Handle)
lHDataPal = GDI.CreatePalet te(lDataLogPal)
lHPrevPal = GDI.SelectPalet te(lHDCPic, lHDataPal, 0)
GDI.RealizePale tte(lHDCPic)
lHDataPal = GDI.SelectPalet te(lHDCPic, lHPrevPal, 0)
User.ReleaseDC( Handle, lHDCPic)
GDI.DeleteObjec t(lHDataPal)
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I asked this in VB without results.
I'm not surprised that no one there knows anything about because it's kind
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Maybe some one here knows.
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