L_LTDIS_API L_INT L_GetPlaybackUpdateRect(hPlayback, prcUpdate, fClear)
Gets the update rectangle in the target bitmap during an animation playback. The rectangle uses bitmap coordinates, and it is cumulative.
Handle that references the animation playback.
Address of the RECT structure that this function will fill with the coordinates of the update rectangle
TRUE if you want to clear the rectangle; FALSE if you do not.
|SUCCESS||The function was successful.|
|< 1||An error occurred. Refer to Return Codes.|
You usually call this after the following states, which you can get with the L_GetPlaybackState function:
|PLAYSTATE_POSTCLEAR||[0x0001] Indicates that the target bitmap has been cleared.|
|PLAYSTATE_POSTRENDER||[0x0004] Indicates that an image has been rendered to the target bitmap.|
|PLAYSTATE_POSTDISPOSE||[0x0009] Indicates that the current image has been disposed of. The index is incremented after processing this state.|
This function uses bitmap coordinates to specify the update rectangle. Therefore, you must account for the bitmap's view perspective. For more information, refer to Accounting for View Perspective.
Required DLLs and Libraries
Win32, x64, Linux.
For an example, refer to L_ProcessPlayback.
For complete sample code, refer to the CHILD.C module of the DEMO
Medical Web Viewer .NET
.NET, Java, Android, and iOS/macOS Assemblies
C API/C++ Class Libraries