Screen Capture

[User 6831394]

Hi Members How i get Screen capture?I am using dialog based application i want to get Screen capture and save into .dat format. Please help me

[Rajesh R Subramanian]

See Barry's Screen Capture[^] I used the CodeProject "search" feature to arrive on that result.

“Follow your bliss.” – Joseph Campbell

[David Crow]

Member 6864839 wrote:

How i get Screen capture?

See here for an idea.

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[User 6831394]

thanks both of you for reply.I use this code

HDC m_hdcMem,hdc;
HBITMAP m_Bitmap,m_OldBitmap,hMainBmp ;
//one intersting for you if you want to use of other resulition
int x=800;
int y=600;

//use of GetDC()->m_hDC and see result.
//hdc=GetDC()->m_hDC;
hdc=GetDesktopWindow()->GetDC()->m_hDC;

m_hdcMem= CreateCompatibleDC(hdc);

//one interesting for you if you want to use of other
m_Bitmap = CreateCompatibleBitmap(hdc,x,y);
m_OldBitmap=(HBITMAP) SelectObject(m_hdcMem, m_Bitmap);

BitBlt(m_hdcMem, 0,0,x,y, hdc,0,0,SRCCOPY);
hMainBmp =(HBITMAP) SelectObject(m_hdcMem, m_OldBitmap);
///////////Now you have a hbitmap of screen hMainBmp/////

CImage m_Image;
m_Image.Attach(hMainBmp);
m_Image.Save("C:\\image.bmp");//use of jpg instead bmp but if you can zip your file its good.
m_Image.Detach();
DeleteDC(m_hdcMem);
DeleteObject(hMainBmp );
DeleteObject(m_OldBitmap);

It's working for me. Now i want to save file in format of .DAT. Please help me

[Rajesh R Subramanian]

Member 6864839 wrote:

Now i want to save file in format of .DAT.

There's no such .DAT file. What you've got by capturing the screen is a bitmap, and you just save it to the disk by providing any extension you want to the filename. Or if by .DAT you want to have a file format that your app can only handle, encrypt (search the site) the bitmap and save it to ".DAT format".

“Follow your bliss.” – Joseph Campbell

[User 6831394]

ok i use this code but file not save in my disk.

m_Image.Save("C:\\image.dat");

[Rajesh R Subramanian]

Take a look at the example at the end of the documentation for CImage::Save()[^]. Because you said "image.dat", the call didn't know the format. You will need to explicitly specify it as bitmap format by doing it this way:

m_Image.Save("c:\\image.dat",ImageFormatBMP);

“Follow your bliss.” – Joseph Campbell

[User 6831394]

Thanks it's working. Thanks once again...........

[Rajesh R Subramanian]

I'm glad I could help. Shameless plug: May I please ask you to mark the helpful replies as "Good Answer" by clicking on the appropriate posts? :)

“Follow your bliss.” – Joseph Campbell