ImGui Progress Bar is ambiguous

Question

I have to add a progress bar into my application using imgui but I can't figure out how it does work, this is its signature:

void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay)

so fraction is used to set the current progress. overlay used to set a title for example but I can't understand how size_arg works?

suppose I want to set my progress bar from 0 to 2, how can I do it with the size_arg argument?

thanks

Answer 1

I have to add a progress bar into my application using imgui but I can't figure out how it does work, this is its signature:

void ImGui::ProgressBar(float fraction, const ImVec2& size_arg, const char* overlay)

so fraction is used to set the current progress. overlay used to set a title for example but I can't understand how size_arg works?

suppose I want to set my progress bar from 0 to 2, how can I do it with the size_arg argument?

thanks