mirror/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2026-01-15 00:44:20 +00:00
Code Activity

Add fullscreen support

Browse source
This commit is contained in:
Rémy Tassoux 2025-10-01 21:49:41 +02:00 • committed by ocornut
parent 0f7f6284d7
commit 2b0c04692a
3 changed files with 79 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

15
examples/example_win32_directx10/main.cpp
View file

@ -17,6 +17,7 @@
static ID3D10Device* g_pd3dDevice = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static bool g_SwapChainFullscreenState = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D10RenderTargetView* g_mainRenderTargetView = nullptr;
@ -272,6 +273,13 @@ void CleanupRenderTarget()
if (g_mainRenderTargetView) { g_mainRenderTargetView->Release(); g_mainRenderTargetView = nullptr; }
}
void ToggleFullscreen()
{
if (FAILED(g_pSwapChain->SetFullscreenState(!g_SwapChainFullscreenState, nullptr)))
return;
g_SwapChainFullscreenState = !g_SwapChainFullscreenState;
}
// Forward declare message handler from imgui_impl_win32.cpp
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
@ -293,6 +301,13 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
g_ResizeWidth = (UINT)LOWORD(lParam); // Queue resize
g_ResizeHeight = (UINT)HIWORD(lParam);
return 0;
case WM_SYSKEYDOWN:
if (wParam == VK_RETURN && (GetKeyState(VK_MENU) & 0x8000)) // ALT + Enter
{
ToggleFullscreen();
return 0;
}
break;
case WM_SYSCOMMAND:
if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
return 0;

15
examples/example_win32_directx11/main.cpp
View file

@ -17,6 +17,7 @@ static ID3D11Device* g_pd3dDevice = nullptr;
static ID3D11DeviceContext* g_pd3dDeviceContext = nullptr;
static IDXGISwapChain* g_pSwapChain = nullptr;
static bool g_SwapChainOccluded = false;
static bool g_SwapChainFullscreenState = false;
static UINT g_ResizeWidth = 0, g_ResizeHeight = 0;
static ID3D11RenderTargetView* g_mainRenderTargetView = nullptr;
@ -277,6 +278,13 @@ void CleanupRenderTarget()
if (g_mainRenderTargetView) { g_mainRenderTargetView->Release(); g_mainRenderTargetView = nullptr; }
}
void ToggleFullscreen()
{
if (FAILED(g_pSwapChain->SetFullscreenState(!g_SwapChainFullscreenState, nullptr)))
return;
g_SwapChainFullscreenState = !g_SwapChainFullscreenState;
}
// Forward declare message handler from imgui_impl_win32.cpp
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
@ -298,6 +306,13 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
g_ResizeWidth = (UINT)LOWORD(lParam); // Queue resize
g_ResizeHeight = (UINT)HIWORD(lParam);
return 0;
case WM_SYSKEYDOWN:
if (wParam == VK_RETURN && (GetKeyState(VK_MENU) & 0x8000)) // ALT + Enter
{
ToggleFullscreen();
return 0;
}
break;
case WM_SYSCOMMAND:
if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
return 0;

49
examples/example_win32_directx12/main.cpp
View file

@ -94,6 +94,8 @@ static UINT64 g_fenceLastSignaledValue = 0;
static IDXGISwapChain3* g_pSwapChain = nullptr;
static bool g_SwapChainTearingSupport = false;
static bool g_SwapChainOccluded = false;
static bool g_SwapChainFullscreenState = false;
static RECT g_WindowRect = {};
static HANDLE g_hSwapChainWaitableObject = nullptr;
static ID3D12Resource* g_mainRenderTargetResource[APP_NUM_BACK_BUFFERS] = {};
static D3D12_CPU_DESCRIPTOR_HANDLE g_mainRenderTargetDescriptor[APP_NUM_BACK_BUFFERS] = {};
@ -523,6 +525,46 @@ FrameContext* WaitForNextFrameContext()
return frame_context;
}
void ToggleFullscreen(HWND hWnd)
{
if (g_SwapChainTearingSupport)
{
if (g_SwapChainFullscreenState)
{
// Restore the window's attributes and size.
RECT rect = g_WindowRect;
::SetWindowLong(hWnd, GWL_STYLE, WS_OVERLAPPEDWINDOW);
::SetWindowPos(hWnd, HWND_NOTOPMOST, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, SWP_FRAMECHANGED | SWP_NOACTIVATE);
::ShowWindow(hWnd, SW_NORMAL);
}
else
{
// Save the old window rect so we can restore it when exiting fullscreen mode.
// Make the window borderless so that the client area can fill the screen.
::GetWindowRect(hWnd, &g_WindowRect);
::SetWindowLong(hWnd, GWL_STYLE, WS_OVERLAPPEDWINDOW & ~(WS_CAPTION | WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_SYSMENU | WS_THICKFRAME));
// Get the settings of the display on which the app's window is currently displayed
IDXGIOutput* output = nullptr;
DXGI_OUTPUT_DESC output_desc;
if (FAILED(g_pSwapChain->GetContainingOutput(&output)) || FAILED(output->GetDesc(&output_desc)))
return;
RECT rect = output_desc.DesktopCoordinates;
output->Release();
// Set new rectangle
::SetWindowPos(hWnd, HWND_TOPMOST, rect.left, rect.top, rect.right, rect.bottom, SWP_FRAMECHANGED | SWP_NOACTIVATE);
::ShowWindow(hWnd, SW_MAXIMIZE);
}
}
else
{
if (FAILED(g_pSwapChain->SetFullscreenState(!g_SwapChainFullscreenState, nullptr)))
return;
}
g_SwapChainFullscreenState = !g_SwapChainFullscreenState;
}
// Forward declare message handler from imgui_impl_win32.cpp
extern IMGUI_IMPL_API LRESULT ImGui_ImplWin32_WndProcHandler(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam);
@ -549,6 +591,13 @@ LRESULT WINAPI WndProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
CreateRenderTarget();
}
return 0;
case WM_SYSKEYDOWN:
if (wParam == VK_RETURN && (GetKeyState(VK_MENU) & 0x8000)) // ALT + Enter
{
ToggleFullscreen(hWnd);
return 0;
}
break;
case WM_SYSCOMMAND:
if ((wParam & 0xfff0) == SC_KEYMENU) // Disable ALT application menu
return 0;