Creating Callback Function
The prototype declaration of the callback function has the following format. You can specify any function name.
static void _stdcall CallBackProc(short Id, WPARAM wParam, LPARAM lParam, void *Param);
The function can be added by using .NET integration environment.
In Class View, right-click on the class to which you want to add the callback function.
Then choose Add-Add Function. The Add Member Function Wizard dialog box is displayed.
Create the function according to the following procedure.
|
Access |
public |
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Return type |
void _stdcall |
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Function name |
CallBackProc |
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Parameter type |
short |
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Parameter name |
Id |
|
Add |
Click |
|
Parameter type |
WPARAM |
|
Parameter name |
wParam |
|
Add |
Click |
|
Parameter type |
LPARAM |
|
Parameter name |
lParam |
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Add |
Click |
|
Parameter type |
void * |
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Parameter name |
Param |
|
Add |
Click |
|
Static |
Check |
Click the Finish button after confirming that Function signature is as follows.
static void _stdcall CallBackProc(short Id, WPARAM wParam, LPARAM lParam, void *Param);
The prototype declaration and skeleton for the function are created by the wizard.