_plugin_registerexprfunction¶
This function registers an expression function defined by a plugin, so that users can use it in expressions. All arguments are integer type.
bool _plugin_registerexprfunction(
int pluginHandle, //plugin handle
const char* name, //name of expresison function
int argc, //number of arguments
CBPLUGINEXPRFUNCTION cbFunction, //callback function
void* userdata //user data
);
Parameters¶
pluginHandle: | Handle of the calling plugin. |
---|---|
name: | Name of expresison function. |
argc: | Number of arguments of expression function. |
cbFunction: | Callback with the following typdef: |
typedef duint(*CBPLUGINEXPRFUNCTION)(int argc, const duint* argv, void* userdata);
userdata: | A pointer value passed to the callback, may be used by plugin to pass additional information. |
---|
Return Values¶
Return true when the registration is successful, otherwise return false.