References ▼
#include "LtTLB.h"
L_INT EXT_CALLBACK YourFunction(pToolbar, nButtonID, dwData, pUserData)
Handles each action that occurs in the toolbar.
Pointer to a toolbar handle.
An integer that identifies the button that was responsible for creating the toolbar event.
Reserved for future use.
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.
| Value | Meaning |
|---|---|
| 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.