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Murp|e
Joined: 12 Jan 2007
Posts: 531
Location: Norway
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 Posted: Sat Feb 17, 2007 11:39 am Post subject: |
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| Philho, there's a lot to do on this little project, but I will definitely try out these two solutions -thanks again! |
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Cyclotron2k
Guest
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| Posted: Wed Apr 11, 2007 5:30 pm Post subject: Save as BMP? |
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| Could someone please let me know how I might modify this script to save straight to BMP instead of converting to PNG? |
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Lexikos
Joined: 17 Oct 2006
Posts: 7299
Location: Australia
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| Posted: Sat Aug 11, 2007 3:36 am Post subject: |
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I spotted a small error in the script (I assume the script in the first post is the last version?)
| Code: | WinGet, hw_frame, id, "Program Manager" ; Desktop ?
hdc_frame := DllCall( "GetDC", "uint", hw_frame ) |
Because the quote marks (") are interpreted literally for commands, hw_frame is always set to zero (0). It just happens to work because: | MSDN wrote: | | If this value is NULL, GetDC retrieves the DC for the entire screen. |
So you may as well do: | Code: | | hdc_frame := DllCall( "GetDC", "uint", 0 ) |
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chrpen
Joined: 06 Nov 2007
Posts: 1
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| Posted: Tue Nov 06, 2007 7:58 am Post subject: window capture |
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Hi,
your script is very useful, i'm new to autohotkey, and i want to specifically capture a window, not the wholescreen.
thanks |
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you will never guess
Guest
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| Posted: Sat Dec 01, 2007 4:24 pm Post subject: |
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| could you make it so the GDIPlusHelper file is included into the main file? |
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majkinetor
Joined: 24 May 2006
Posts: 4511
Location: Belgrade
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| Posted: Sat Dec 01, 2007 6:04 pm Post subject: |
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no, thats impossible 
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bmcclure
Joined: 24 Nov 2007
Posts: 774
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| Posted: Tue Dec 11, 2007 2:11 am Post subject: |
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I would love to see a function created using the code/concepts in this script that takes a screen shot of x size (or fullscreen), so that this can be used in scripts in a more generic fashion.
Something like:
GDIplus_Capture(pFile,pW="",pH="")
I'm trying to figure out all the DllCalls right now and if I can get it working, I'll create a function like this. Just wondering if anyone might have something similar, or be able to easily create it.
Thanks for this very useful code holomind!
_________________
Ben
My Trac projects
My Wiki
[Broken] - My music |
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Joy2DWorld
Joined: 04 Dec 2006
Posts: 561
Location: Galil, Israel
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| Posted: Tue Dec 11, 2007 12:36 pm Post subject: |
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think there are a few.
one nice one is SEAN's script ... pretty much complete solution... [search and you'll find it]
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Joyce Jamce |
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bmcclure
Joined: 24 Nov 2007
Posts: 774
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| Posted: Tue Dec 11, 2007 3:28 pm Post subject: |
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You're right, I didn't notice this before. Now it's linked to this topic in case someone else makes the same mistake 
_________________
Ben
My Trac projects
My Wiki
[Broken] - My music |
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Esteefiu
Joined: 29 Dec 2007
Posts: 1
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| Posted: Fri Jan 04, 2008 11:31 pm Post subject: |
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hi,
Using this script to save numerous screenshots, i encountred the following problem:
After about 74 screenshots i get this mesage : "Error in GdipSaveImageToFile (2: Invalid Parameter) 0" .
After that i can't take screenshot anymore without killing and reloading the script... it's very boring and despite of my invetigations, i can't resolve that problem by myself, in code. Buffer is too small? Is it possible to enlarge it?... If some of you have an idea.. Thanks a lot! |
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DeathByNukes
Joined: 25 Mar 2007
Posts: 43
Location: Earth-Moon L2
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| Posted: Fri Jan 04, 2008 11:58 pm Post subject: |
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I've been trying to use PrintWindow or WM_PRINT to capture a specific window like in LiveWindows but I can't seem to get it right.
| Code: | #Include %A_ScriptDir%\Common\GDIPlusHelper.ahk
WinWait, AutoHotkey Help
ShotWindow := WinExist()
WinGetPos,,, ShotWindowW, ShotWindowH, ahk_id %ShotWindow%
hdc_frame := DllCall( "GetDC", "uint", ShotWindow )
hdc_buffer := DllCall( "gdi32.dll\CreateCompatibleDC", "uint", hdc_frame )
hbm_buffer := DllCall( "gdi32.dll\CreateCompatibleBitmap", "uint", hdc_frame, "int", ShotWindowW, "int", ShotWindowH )
DllCall( "gdi32.dll\SelectObject", "uint", hdc_buffer, "uint", hbm_buffer )
; Both PrintWindow and WM_PRINT have the same result.
DllCall( "PrintWindow", UInt, ShotWindow, UInt, hdc_buffer, UInt, 0 )
;SendMessage, 0x317, hdc_buffer, 0,, ahk_id %ShotWindow% ; WM_PRINT
/* WM_PRINT flags
PRF_CHECKVISIBLE 0x00000001
PRF_NONCLIENT 0x00000002
PRF_CLIENT 0x00000004
PRF_ERASEBKGND 0x00000008
PRF_CHILDREN 0x00000010
PRF_OWNED 0x00000020
*/
; Nothing changes if I use PRF_NONCLIENT or PRF_CLIENT.
If (GDIplus_Start() != 0)
Goto GDIplusError
; Copy BMP from DC
DllCall( "gdi32.dll\BitBlt"
, "uint", hdc_buffer, "int", 0, "int", 0, "int", ShotWindowW, "int", ShotWindowH
, "uint", hdc_frame, "int", 0, "int", 0, "uint", 0x00CC0020 )
DllCall( "GDIplus\GdipCreateBitmapFromHBITMAP", uint, hbm_buffer, uint, 0, uintp, bitmap )
; Save to PNG
If (GDIplus_GetEncoderCLSID(pngEncoder, #GDIplus_mimeType_png) != 0)
Goto GDIplusError
noParams = NONE
If ( GDIplus_SaveImage(bitmap, "shot_" . A_Now . A_MSec . ".png", pngEncoder, noParams) != 0 )
Goto GDIplusError
Gosub GDIplusStop
exitapp ; ----------------------------
GDIplusError:
GDIplusStop:
If (#GDIplus_lastError != "")
MsgBox 16, GDIplus Test, Error in %#GDIplus_lastError%
GDIplus_Stop()
Return
Cleanup:
DllCall( "gdi32.dll\DeleteObject", "uint", hbm_buffer )
DllCall( "gdi32.dll\DeleteDC" , "uint", hdc_frame )
DllCall( "gdi32.dll\DeleteDC" , "uint", hdc_buffer )
GameCleanup()
ExitApp |
I get this output:
 - It starts at the client area, which was not specified in the options.
- It captures screen outside of the window and the window covering it.
I've checked the MSDN documentation on each function but found nothing to suggest this behavior.
It must be some stupid mistake on my part but I'm rather lost in all this.  |
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DeathByNukes
Joined: 25 Mar 2007
Posts: 43
Location: Earth-Moon L2
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| Posted: Sat Feb 09, 2008 3:29 pm Post subject: |
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Disregard that, I figured it out. I had to delete the BitBlt line.
Thanks for the help though.  |
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RandomRange
Joined: 11 Jul 2008
Posts: 1
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| Posted: Fri Jul 11, 2008 1:01 pm Post subject: |
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Hi all!
I modified this to just take the shot from the window that is under mouse cursor when you press mouse middle key. I use this while playing online poker to take screenshots of game situations for later analysing.
I had to change the raster operation code of BitBlt call to 0x40CC0020 to capture also the player stats from PokerAce HUD that I'm using.
Thanks for holomind for the original code, this has been really valuable for me!
| Code: | #Include GDIPlusHelper.ahk
; see: http://www.autohotkey.com/forum/viewtopic.php?t=12012 for orignal
main:
FileCreateDir, screens
counter_f:=0
return
MButton::
SaveImage_Full:
MouseGetPos, ,, winID
WinGetPos, winX, winY, winWidth, winHeight, ahk_id %winID%
hdc_frame := DllCall( "GetDC", "uint", NULL )
hdc_buffer := DllCall( "gdi32.dll\CreateCompatibleDC" , "uint", hdc_frame )
hbm_buffer := DllCall( "gdi32.dll\CreateCompatibleBitmap" , "uint", hdc_frame, "int", winWidth, "int", winHeight )
r := DllCall( "gdi32.dll\SelectObject" , "uint", hdc_buffer, "uint", hbm_buffer )
counter_f := counter_f +1
FormatTime, myTime, , yyyyMMdd_hhmmss
fileNameDestP = screens\S_%myTime%_%counter_f%.png
If (GDIplus_Start() != 0)
Goto GDIplusError
; Copy BMP from DC
DllCall( "gdi32.dll\BitBlt"
, "uint", hdc_buffer, "int", 0, "int", 0, "int", winWidth, "int", winHeight
, "uint", hdc_frame, "int", winX, "int", winY, "uint", 0x40CC0020 )
DllCall( "GDIplus\GdipCreateBitmapFromHBITMAP", uint, hbm_buffer, uint, 0, uintp, bitmap )
; Save to PNG
If (GDIplus_GetEncoderCLSID(pngEncoder, #GDIplus_mimeType_png) != 0)
Goto GDIplusError
noParams = NONE
If (GDIplus_SaveImage(bitmap, fileNameDestP, pngEncoder, noParams) != 0)
Goto GDIplusError
DllCall( "gdi32.dll\DeleteObject", "uint", hbm_buffer )
DllCall( "gdi32.dll\DeleteDC" , "uint", hdc_frame )
DllCall( "gdi32.dll\DeleteDC" , "uint", hdc_buffer )
Return
GDIplusError:
If (#GDIplus_lastError != "")
MsgBox 16, GDIplus Test, Error in %#GDIplus_lastError%
GDIplus_Stop()
Return |
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jfty.009260
Joined: 18 Mar 2008
Posts: 8
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| Posted: Thu Jul 31, 2008 1:51 pm Post subject: |
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Excellent script...I can't believe that what I've been looking for would be contained in a simple AHK script! It can handle even shots from DirectX programs, which is a very big plus. The only thing that should be added would probably be the ability to capture individual windows (Alt+PrntScr) as well as an option to show the pointer or not.
Overall, an amazing job. |
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Drugwash
Joined: 07 Sep 2008
Posts: 921
Location: Ploiesti, RO
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| Posted: Wed Feb 04, 2009 2:24 pm Post subject: |
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Thank you, holomind!
This script proved to work fine on my Win98SE system. It misses however a small detail: cannot handle multiple monitors. It always captures the primary monitor, regardless of screen configuration, active window, etc.
It would be wonderful if it would capture the whole desktop (in my case dual-view 1024x768 + 1024x768 = 2048x768) or allow monitor selection.
Active window selection would also be a plus, as requested previously.
Sean's script mentioned somewhere in this thread does capture the whole 2048x768 desktop area but it only saves a black .bmp. 
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AHK tools by Drugwash |
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