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exchangeviews
India
39 Posts |
 Posted - Dec 09 2014 : 03:28:47
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Hi All,
I need to capture rectangular selected part of screen using mouse dragging but unable to understand how to do so. please help. Thanks in advance. |
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w2m
USA
1990 Posts |
Posted - Dec 09 2014 : 05:45:03
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ImageEn by itself cannot capture a selection, but other screen capture components or libraries can easily be used in conjunction with ImageEn. One such component is called Apprehend that I wrote many years ago but still works even the latest versions of Delphi.
Apprehend is free and may be obtained here:
http://www.frontiernet.net/~w2m/apprehend.html
Bill Miller
Adirondack Software & Graphics
Email: w2m@hughes.net
EBook: http://www.imageen.com/ebook/
Custom Commercial ImageEn Development |
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exchangeviews
India
39 Posts |
Posted - Dec 09 2014 : 08:12:19
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Hi Bill,
Thanks for sharing this gr8 info. Its really what I was looking for. Thanks once again. |
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exchangeviews
India
39 Posts |
Posted - Feb 24 2015 : 10:26:59
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Dear Bill,
Thanks for the info. It is working fine. One more thing i am in need to change the cursor symbol when i use CaptureSelection function. Currently it shows crCross cursor and i want to set it by myself.
where i need to define it, in following code:
procedure TCaptureFreehandForm.FormCreate( Sender: TObject );
var
aDC: HDC;
P: TPoint; // Where is the mouse now?
const
crDraw = -19;
begin
GetCursorPos( P ); // Where am I?
if ( ForceMonitorNum >= 0 ) and ( ForceMonitorNum <= Screen.MonitorCount - 1 ) then
M := ForceMonitorNum { Override }
else
M := Screen.MonitorFromPoint( P, mdNearest ).MonitorNum; // Here I am! Monitors[M]
Screen.Cursors[ crDraw ] := LoadCursor( hInstance, pChar( 'CURSOR_2' ) );
Cursor := crDraw;
fBMP := TBitmap.Create;
...
...
...
OR in resource file.
{$R CaptureFreehand.Res}
I appreciate if any help. |
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w2m
USA
1990 Posts |
Posted - Feb 25 2015 : 16:19:20
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To change the cursor you will need a resource editor to view the cursors in the res file. If the cursor you want to use is not in the res file you have to use the resource editor to add your cursor to the file. Then you change the code to load the new resource name. For example if you add a new cursor cslled NEW_CURSOR to the resource file then should you change the code to:
Screen.Cursors[ crDraw ] := LoadCursor( hInstance, pChar( 'NEW_CURSOR ') );
Cursor := crDraw;
Then recompile the dpk.
Bill Miller
Adirondack Software & Graphics
Email: w2m@hughes.net
EBook: http://www.imageen.com/ebook/
Custom Commercial ImageEn Development |
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exchangeviews
India
39 Posts |
Posted - Feb 26 2015 : 04:11:38
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Hi Bill,
Thanks for your reply. It is working now. |
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exchangeviews
India
39 Posts |
Posted - Apr 10 2015 : 09:44:15
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Hi Bill,
Is there a way to capture a scrolling window like web browser chrome using your component or other way?
Thanks. |
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w2m
USA
1990 Posts |
Posted - Apr 26 2015 : 09:57:15
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I am sorry but I do not know of a way to capture a scrolling window. There is code in Apprehend that attempts to capture a scrolling window that that was added by a user of Apprehend. Unfortunately the code is quite extensive and never worked well. You might try to ask your question at Stackoverflow.
Bill Miller
Adirondack Software & Graphics
Email: w2m@hughes.net
EBook: http://www.imageen.com/ebook/
Custom Commercial ImageEn Development |
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How to capture part of screen using mouse drag
