Available in LEADTOOLS Imaging Pro, Vector, Document, and Medical Imaging toolkits. |
#include "ltwrappr.h"
L_BOOL LAnimationWindow::DoEvents(pbCanceled=NULL, uVKey=VK_ESCAPE) const
L_BOOL * pbCanceled; |
/* pointer to a boolean flag */ |
L_UINT uVKey; |
/* virtual key code to be used as an escape key */ |
Allows events to take action while animation playback is in progress.
Parameter |
Description |
pbCanceled |
Pointer to boolean flag. This parameter can be NULL. |
uVKey |
Virtual key code to be used as an escape key. |
Returns
TRUE |
WM_QUIT message received. |
FALSE |
Otherwise. |
Comments
This function passes control to the operating system. Control is returned after the operating system has finished processing the events in its queue (messages).
DoEvents is most useful for allowing a user to cancel a playback after it has started.
If pbCanceled is not NULL, on return it will contain TRUE if the user has pressed the escape key during message processing.
If the DoEvents captured the WM_QUIT message, the return value is TRUE, otherwise it is FALSE.
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: |
LAnimationWindow::LAnimationWindow, LAnimationWindow::IsPlaying, LAnimationWindow::PlayAnimation, Class Members |
Topics: |
Example
For an example, refer to LAnimationWindow::PlayAnimation.