Could you please advice how to create About Dialog(custom dialog) in Adobe Premiere Pro like About Dialog in After Effects. I have searched a lot but could not find the answer. The dialog created via PF_Cmd_DO_DIALOG is visible in After Effects but is not visible in Premiere Pro.
Premiere Pro doesn't display a message box when an effect returns a string in out_data->return_msg, which is the way the Checkout sample pops a dialog in response to PF_Cmd_DO_DIALOG. You'll need to put together a OS-specific dialog using standard APIs outside of the AE API.