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Copy Application Image To Clipboard
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Author
Topic: Copy Application Image To Clipboard (Read 1407 times)
Bazzao
Full Member
Posts: 178
Pies are squared.
Copy Application Image To Clipboard
«
on:
June 22, 2019, 05:16:45 am »
I can copy a Form canvas to clipboard, but it does not include the header.
How do I copy the Application as shown to the the clipboard (ie coding equivalent of Alt-Printscrn)?
Bazza
Logged
Bazza
Lazarus 2.0.10; FPC 3.2.0; SVN Revision 63526; x86_64-win64-win32/win64
Windows 10.
RAW
Hero Member
Posts: 868
Re: Copy Application Image To Clipboard
«
Reply #1 on:
August 21, 2019, 06:06:36 am »
On Windows: Try this ...
(found it in a german thread, seems to work even if the window is hidden, take a look at PrintWindow ... needs XP/Server 2003 or newer)
Code: Pascal
[Select]
[+]
[-]
UNIT
Unit1
;
{$MODE DELPHI}
INTERFACE
USES
Windows
,
Graphics
,
Forms
,
ExtCtrls
;
TYPE
TForm1
=
Class
(
TForm
)
Image1
:
TImage
;
Procedure
Image1Click
(
Sender
:
TObject
)
;
End
;
Var
Form1
:
TForm1
;
IMPLEMENTATION
{$R *.LFM}
Function
ScrShotWnd
(
wnd
:
HWND
;
Const
bmp
:
TBitmap
)
:
Boolean
;
Var
r
:
TRect
;
hDLL
:
THandle
;
PrintWindow
:
Function
(
aWnd
:
HWND
;
hDC
:
HDC
;
nFlags
:
UINT
)
:
BOOL
;
Stdcall
;
Begin
Result
:
=
False
;
hDLL
:
=
GetModuleHandle
(
user32
)
;
If
hDLL <>
0
Then
Begin
@
PrintWindow
:
=
GetProcAddress
(
hDLL
,
'PrintWindow'
)
;
If
@
PrintWindow <>
Nil
Then
Begin
GetWindowRect
(
wnd
,
r
)
;
bmp
.
Width
:
=
r
.
Right
-
r
.
Left
;
bmp
.
Height
:
=
r
.
Bottom
-
r
.
Top
;
bmp
.
Canvas
.
Lock
;
Try
Result
:
=
PrintWindow
(
wnd
,
bmp
.
Canvas
.
Handle
,
0
)
;
Finally
bmp
.
Canvas
.
Unlock
;
End
;
End
;
End
;
End
;
Procedure
TForm1
.
Image1Click
(
Sender
:
TObject
)
;
Var
Wnd
:
THandle
;
Begin
Wnd
:
=
FindWindow
(
'AkelPad4'
,
Nil
)
;
ScrShotWnd
(
Wnd
,
Image1
.
Picture
.
Bitmap
)
;
Image1
.
Invalidate
;
SetBounds
(
0
,
0
,
Image1
.
Picture
.
Bitmap
.
Width
,
Image1
.
Picture
.
Bitmap
.
Height
)
;
End
;
END
.
Logged
Windows 7 Pro (x64 Sp1) & Windows XP Pro (x86 Sp3).
RAW
Hero Member
Posts: 868
Re: Copy Application Image To Clipboard
«
Reply #2 on:
August 21, 2019, 07:06:51 am »
Or this ...
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
FormClick
(
Sender
:
TObject
)
;
begin
KEYBD_Event
(
VK_SNAPSHOT
,
1
,
0
,
0
)
;
end
;
Logged
Windows 7 Pro (x64 Sp1) & Windows XP Pro (x86 Sp3).
Bazzao
Full Member
Posts: 178
Pies are squared.
Re: Copy Application Image To Clipboard
«
Reply #3 on:
August 22, 2019, 10:50:52 am »
I tried
Quote
KEYBD_Event(VK_SNAPSHOT, 1, 0, 0);
and after adding the necessary uses, it worked first go.
Very good RAW.
Thanks,
Logged
Bazza
Lazarus 2.0.10; FPC 3.2.0; SVN Revision 63526; x86_64-win64-win32/win64
Windows 10.
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Copy Application Image To Clipboard
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