LScreenCapture::IsCaptureActive

#include "ltwrappr.h"

static L_BOOL LScreenCapture::IsCaptureActive()

Indicates whether a capture process has been started.

Returns

TRUE

There is an active capture operation.

FALSE

There is not an active capture operation.

Comments

You should stop a previously started capture process before starting another, or before the calling thread terminates.

Required DLLs and Libraries

LTDIS
LTSCR

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also

Functions:

Class Members

Example

/* This is a Microsoft header file and is required for _beginthread */
#include <process.h>
L_VOID __cdecl CaptureThread( L_VOID *pDummy );
LBitmap LeadBitmap;
LScreenCapture ScreenCapture(&LeadBitmap);
L_INT LScreenCapture__IsCaptureActiveExample(HWND hWnd)
{
   L_INT nRet;
   _beginthread(CaptureThread, 0, 0);
   /// place some delay so that the thread is called
   Sleep(1000);
   while(ScreenCapture.IsCaptureActive())
   {
      nRet = ScreenCapture.StopCapture();
      if(nRet != SUCCESS)
         return nRet;
      MessageBox(hWnd, TEXT("Capture operation aborted by user."), TEXT("Info"), MB_OK);
   }
   return SUCCESS;
}
L_VOID __cdecl CaptureThread(L_VOID *pDummy)
{
   UNREFERENCED_PARAMETER(pDummy);
   ScreenCapture.CaptureActiveWindow();
   MessageBox(0, TEXT("Capture Thread Terminated."), TEXT("Info"), MB_OK);
 
   return;
}