DtvLong dal_hlp_cal_txt (par)

Calls the current online help system.

Input Parameters Significance
char *par any parameter

Output Parameters Significance
none -

Return Code Significance
0 no error

Can be called as On_Select userexit at any menu item / button or as On_Event userexit in any state of the user interface.

The userexit initiates the help trigger and executes the functions which were added to the help trigger stack by dal_hlp_fnc_url. If one of the functions in the stack creates a valid help address and it is passed to the default browser of the system or the MS-HTML-API with dal_hlp_set_url or dal_hlp_set_msh, the processing of the function stack will terminate. If no function was added to the stack or no function sets and own help address, this will result in a call of the DataView online help system.

The parameters passed can be interpreted by the functions in the help trigger stack, e.g. the name of a starting page for the HTML browser.