Solved

hbitmap to TImage?

Posted on 2001-07-31
6
1,970 Views
Last Modified: 2008-02-01
I have an ActiveX component which returns a windows handle to a Bitmap.
I need to get this handle into a TImage which can be saved to a file and/or displayed as part of an image component on the background of my form.

I have been able to get a HDC to the bitmap and draw on the bitmap... but I cannot figure out how to "copy" the data into a TImage.

MyHDC := CreateCompatibleDC(0);
    // ' Selects entire bitmap to this DC
SelectObject(MyHDC, HGDIOBJ(SkinObject.hEntireBitmap));

I'm sure I'm just missing something simple.
John
0
Comment
Question by:zitt
6 Comments
 
LVL 2

Expert Comment

by:bugroger
ID: 6336920
Hi zitt,


{...}
MemBitmap        := TBitmap.Create;
MemBitmap.Handle := "HBITMAP";

Image1.Width  := MemBitmap.Width;
Image1.Height := MemBitmap.Height;
Image1.Canvas.Draw(0, 0, MemBitmap);

MemBitmap.Free;
{...}

GL
 Bug

0
 
LVL 2

Expert Comment

by:bugroger
ID: 6336948
If
 MemBitmap.Handle := "HBITMAP/HDC";
does not work try this:

 MemBitmap.Handle := CreateCompatibleBitmap("HDC", "Width", "Height");

0
 
LVL 2

Expert Comment

by:bugroger
ID: 6336951
You can also try
 Image1.Picture.Bitmap.Handle := "HBitmap/HDC"
or
 Image1.Picture.Bitmap.Handle := CreateCompatibleBitmap("HDC", "Width", "Height");
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 20

Accepted Solution

by:
Madshi earned 50 total points
ID: 6336983
Maybe simply "Image1.Picture.Bitmap.Handle := HBitmap;" ?

Regards, Madshi.
0
 
LVL 5

Expert Comment

by:Gwena
ID: 6338821
listening :-)
0
 

Author Comment

by:zitt
ID: 6362689
Short, simple and it seems to work.
I could have swore I tried this; however, it was likely do to inconsitancies I have with the OCX control I'm using.

John
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
delphi custom sort exception 6 138
Delphi XE10, MySQL Query 4 127
URL for downloading Google Chrome for Win XP 2 126
Convert GUI app into console app for Win32 Env 5 82
This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
Introduction Raise your hands if you were as upset with FireMonkey as I was when I discovered that there was no TListview.  I use TListView in almost all of my applications I've written, and I was not going to compromise by resorting to TStringGrid…
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
Video by: Mark
This lesson goes over how to construct ordered and unordered lists and how to create hyperlinks.

863 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

23 Experts available now in Live!

Get 1:1 Help Now