Basic Guide To: Borland C++ Builder 6

[Back To Directory]
Screen Capture:

1. Open Borland C++ Builder.
2. Place a Button on the form.
3. Place an Image on the form
4. Double click the button.
5. Type the following red code in the Button1Click function:

//This is what the Button1Click function should look like:

void __fastcall TForm1::Button1Click(TObject *Sender)
{
   HDC dc = GetDC(0);
   Graphics::TCanvas *ScrCanvas = new Graphics::TCanvas;
   ScrCanvas->Handle = dc;

   Image1->Picture->Bitmap->Width = Screen->Width;
   Image1->Picture->Bitmap->Height= Screen->Height;

   TRect rt = Rect(0,0,Screen->Width, Screen->Height);
   Image1->Picture->Bitmap->Canvas->CopyRect(rt, ScrCanvas, rt);

   Form1->WindowState = wsMaximized;
   Image1->Align = alClient;

   delete ScrCanvas;
   ReleaseDC(NULL,dc);
}
//---------------------------------------------------------------------------

6. Run the program, click the Button1. Form1 will resize and display the captered screen. You could add a timer and hide Form1 before each capture so that the desktop or top window is being captured and not Form1.

[Back To Directory]