L_DoubleBufferEnable

#include "l_bitmap.h"

L_LTDIS_API L_INT L_DoubleBufferEnable(hDoubleBufferHandle, bEnable)

L_HANDLE hDoubleBufferHandle;	/* double buffer handle */
L_BOOL bEnable;	/* value that specifies whether double buffering is used */

Enables or disables double buffering.

Parameter	Description
hDoubleBufferHandle	Handle that identifies the double buffering process.
bEnable	Value that specifies whether to enable double buffering. Possible values are:
	Value	Meaning
	TRUE	Enable double buffering.
	FALSE	Disable double buffering.

Returns

SUCCESS	The function was successful.
< 1	An error occurred. Refer to Return Codes.

Comments

This function enables or disables a double buffering process. This function should be used after the double buffering process is already in place. This means that the double buffering handle should already be created, and all paint calls should already be wrapped in L_DoubleBufferBegin and L_DoubleBufferEnd pairs.

For more information, see the topic Minimizing Flicker With Double Buffering.

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.

Platforms

Windows 2000 / XP/Vista.

See Also

Functions:	L_DoubleBufferCreateHandle, L_DoubleBufferDestroyHandle, L_DoubleBufferBegin, L_DoubleBufferEnd
Topics:	Raster Image Functions: Displaying Images
	Minimizing Flicker With Double Buffering

Example

To see how double buffering can be used in an application, see the source code for the API annotation demo.