Can I change a borderless window size? about hello_imgui

[pthom]

you should try. ImGui provides ImGui::GetMousePos() + ImGui::IsMouseDown() which could help you.

But you may experience difficulties. You are fighting against the OS and/or Glfw.

[pthom]

This is now possible, see new content of AppWindowParams:

struct AppWindowParams
{
    std::string windowTitle;

    WindowGeometry windowGeometry;

    // if true, then save & restore from last run
    bool restorePreviousGeometry = false;

    bool resizable = true;
    bool hidden = false;

    bool   borderless = false;
    bool   borderlessMovable = true;
    bool   borderlessResizable = true;
    bool   borderlessClosable = true;
    ImVec4 borderlessHighlightColor = ImVec4(0.2f, 0.4f, 1.f, 0.3f);


    EdgeInsets edgeInsets;
    bool       handleEdgeInsets = true;
};

[vertexi]

Magnificent work! Thank you.