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Examples: Win32+Vulkan, GLFW+Metal: Fixed not applying content scale. (#8921, #8756)

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Somehow it breaks in Win32+OpenGL3 example: when enabled Win32 applies some extra scale.
This commit is contained in:
ocornut 2025-09-15 16:40:10 +02:00
parent e044d99710
commit 3c6c5692b8
4 changed files with 49 additions and 27 deletions
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14
examples/example_win32_vulkan/main.cpp
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@ -342,11 +342,14 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
// Main code
int main(int, char**)
{
// Make process DPI aware and obtain main monitor scale
ImGui_ImplWin32_EnableDpiAwareness();
float main_scale = ImGui_ImplWin32_GetDpiScaleForMonitor(::MonitorFromPoint(POINT{ 0, 0 }, MONITOR_DEFAULTTOPRIMARY));
// Create application window
//ImGui_ImplWin32_EnableDpiAwareness();
WNDCLASSEXW wc = { sizeof(wc), CS_CLASSDC, WndProc, 0L, 0L, GetModuleHandle(nullptr), nullptr, nullptr, nullptr, nullptr, L"ImGui Example", nullptr };
::RegisterClassExW(&wc);
HWND hwnd = ::CreateWindowW(wc.lpszClassName, L"Dear ImGui Win32+Vulkan Example", WS_OVERLAPPEDWINDOW, 100, 100, 1280, 800, nullptr, nullptr, wc.hInstance, nullptr);
HWND hwnd = ::CreateWindowW(wc.lpszClassName, L"Dear ImGui Win32+Vulkan Example", WS_OVERLAPPEDWINDOW, 100, 100, (int)(1280 * main_scale), (int)(800 * main_scale), nullptr, nullptr, wc.hInstance, nullptr);
ImVector<const char*> extensions;
extensions.push_back("VK_KHR_surface");
@ -369,7 +372,7 @@ int main(int, char**)
// Show the window
// FIXME: Retrieve client size from window itself.
ImGui_ImplVulkanH_Window* wd = &g_MainWindowData;
SetupVulkanWindow(wd, surface, 1280, 800);
SetupVulkanWindow(wd, surface, (int)(1280 * main_scale), (int)(800 * main_scale));
::ShowWindow(hwnd, SW_SHOWDEFAULT);
::UpdateWindow(hwnd);
@ -384,6 +387,11 @@ int main(int, char**)
ImGui::StyleColorsDark();
//ImGui::StyleColorsLight();
// Setup scaling
ImGuiStyle& style = ImGui::GetStyle();
style.ScaleAllSizes(main_scale); // Bake a fixed style scale. (until we have a solution for dynamic style scaling, changing this requires resetting Style + calling this again)
style.FontScaleDpi = main_scale; // Set initial font scale. (using io.ConfigDpiScaleFonts=true makes this unnecessary. We leave both here for documentation purpose)
// Setup Platform/Renderer backends
ImGui_ImplWin32_Init(hwnd);
ImGui_ImplVulkan_InitInfo init_info = {};