IupPostMessage

Sends data to an element, that will be received by a callback when the main loop regain control.

It is expected to be thread safe.

Parameters/Return

void IupPostMessage(Ihandle* ih, const char* s, int i, double d, void* p);

ih: identifier of the interface element.
s: string. Can be NULL. It will be internally duplicated if not NULL.
i: integer number.
d: floating point number.
p: generic pointer.

POSTMESSAGE_CB Callback

int function(Ihandle *ih,  const char* s, int i, double d, void* p);

ih: identifier of the element that activated the event.
s: string.
i: integer number.
d: floating point number.
p: generic pointer.

Returns: IUP_CLOSE will be processed.

Notes

The variables are stored when the function is called, to be later passed to the callback. It will work even for non-native elements.

If IupPostMessage is called, the callback must be defined or there will be a memory leak.

Affects

All controls.