Help Version 19.0.2017.10.27
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#include "LtTLB.h"
L_INT EXT_CALLBACK YourFunction(pToolbar, nButtonID, dwData, pUserData )
pTOOLBARHANDLE pToolbar; |
pointer to a toolbar handle |
L_UINT nButtonID; |
button ID |
L_UINT32 dwData; |
reserved |
L_VOID * pUserData; |
pointer to additional data |
Handles each action that occurs in the toolbar.
Parameter |
Description |
pToolbar |
Pointer to a toolbar handle. |
nButtonID |
An integer that identifies the button that was responsible for creating the toolbar event. |
dwData |
Reserved for future use. |
pUserData |
A void pointer that you can use it to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the calling function.) |
|
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes |
This function is called for each event that occurs in the toolbar. To receive notification of toolbar events the callback function must be set using L_TBSetCallback. To determine that current callback function that is handling toolbar events, call L_TBGetCallback.
Required DLLs and Libraries
LTTLB
For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.