The library is unable to find monitors on 1.91.8-docking #8401
Description
Version/Branch of Dear ImGui:
Version 1.91.8, Branch: docking
Back-ends:
imgui_impl_opengl3.cpp used with raylib and rlimgui
Compiler, OS:
tested on linux & windows with gcc & clang compilers
Full config/build information:
build/_deps/imgui-src/imgui.cpp:16539: int ImGui::FindPlatformMonitorForRect(const ImRect&): Assertion `monitor_count > 0' failed.
[1] 1646101 IOT instruction (core dumped)
Details:
My Issue/Question:
XXX (please provide as much context as possible)
Since the latest version as the date of this issue, the library asserts in monitor_cout > 0.
I had to switch to the previous version in order to make it work.
Is this a possible regression ?
Screenshots/Video:
No response
Minimal, Complete and Verifiable Example code:
cmake_minimum_required(VERSION 3.18)
set(NAME "imgui_bug")
project(${NAME} CXX)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
set(CMAKE_CXX_EXTENSIONS OFF)
set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
if(WIN32)
set(IMGUI_BACKEND "imgui_impl_dx11.cpp") # DirectX 11 for Windows
elseif(APPLE)
set(IMGUI_BACKEND "imgui_impl_metal.mm") # Metal for macOS
elseif(UNIX)
set(IMGUI_BACKEND "imgui_impl_opengl3.cpp") # OpenGL for Linux
endif()
# includes
include_directories(./includes)
# raylib
include(FetchContent)
FetchContent_Declare(
raylib
GIT_REPOSITORY https://github.com/raysan5/raylib.git
GIT_TAG 5.5
GIT_SHALLOW 1
)
FetchContent_GetProperties(raylib)
if (NOT raylib_POPULATED)
set(FETCHCONTENT_QUIET NO)
FetchContent_Populate(raylib)
set(BUILD_EXAMPLES OFF CACHE BOOL "" FORCE)
set(BUILD_GAMES OFF CACHE BOOL "" FORCE)
add_subdirectory(${raylib_SOURCE_DIR} ${raylib_BINARY_DIR})
endif()
# imgui
FetchContent_Declare(
imgui
GIT_REPOSITORY https://github.com/ocornut/imgui.git
GIT_TAG docking
)
FetchContent_MakeAvailable(imgui)
set(imgui_SOURCE_DIR ${CMAKE_BINARY_DIR}/_deps/imgui-src)
# rlimgui
FetchContent_Declare(
rlImGui
GIT_REPOSITORY https://github.com/raylib-extras/rlImGui.git
GIT_TAG main
)
FetchContent_MakeAvailable(rlImGui)
set(rlImGui_SOURCE_DIR ${CMAKE_BINARY_DIR}/_deps/rlimgui-src)
include_directories(${imgui_SOURCE_DIR} ${rlImGui_SOURCE_DIR})
set(SRC_CXX_FILES "./src/main.cpp"
"${rlImGui_SOURCE_DIR}/rlImGui.cpp"
"${imgui_SOURCE_DIR}/imgui.cpp"
"${imgui_SOURCE_DIR}/imgui_draw.cpp"
"${imgui_SOURCE_DIR}/imgui_widgets.cpp"
"${imgui_SOURCE_DIR}/imgui_tables.cpp"
"${imgui_SOURCE_DIR}/backends/${IMGUI_BACKEND}"
)
# Setup the example
add_executable(${NAME} ${SRC_CXX_FILES})
# Link raylib and raylib-cpp
target_link_libraries(${NAME} PUBLIC raylib)#include "imgui.h"
#include "raylib.h"
#include "rlImGui.h"
#include <cstdlib>
#include <iostream>
int main(int ac, char **av) {
InitWindow(screen_width, screen_height, "gol_raylib");
SetTargetFPS(60);
rlImGuiSetup(true);
// Imgui control menu
int updates_per_seconds = 9;
// Diplay generations
while (!WindowShouldClose()) {
BeginDrawing();
ClearBackground(BLACK);
// Start ImGui frame
rlImGuiBegin();
ImGui::Begin("Control Panel");
ImGui::SliderInt("Adjust speed", &updates_per_seconds, 0, 30);
ImGui::End();
// End ImGui frame
rlImGuiEnd();
EndDrawing();
}
CloseWindow();
return 0;
}