Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#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 For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
Win32, x64.
See Also
Functions: |
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; }