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Diffstat (limited to 'include/internal/cef_app_win.h')
| -rw-r--r-- | include/internal/cef_app_win.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/include/internal/cef_app_win.h b/include/internal/cef_app_win.h new file mode 100644 index 00000000..3e8a3eeb --- /dev/null +++ b/include/internal/cef_app_win.h @@ -0,0 +1,107 @@ +// Copyright (c) 2022 Marshall A. Greenblatt. All rights reserved. +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google Inc. nor the name Chromium Embedded +// Framework nor the names of its contributors may be used to endorse +// or promote products derived from this software without specific prior +// written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifndef CEF_INCLUDE_INTERNAL_CEF_APP_WIN_H_ +#define CEF_INCLUDE_INTERNAL_CEF_APP_WIN_H_ +#pragma once + +#include "include/base/cef_build.h" + +#if defined(OS_WIN) + +#if defined(ARCH_CPU_32_BITS) +#include <windows.h> +#endif + +#ifdef __cplusplus +extern "C" { +#endif + +#if defined(ARCH_CPU_32_BITS) +typedef int(APIENTRY* wWinMainPtr)(HINSTANCE hInstance, + HINSTANCE hPrevInstance, + LPWSTR lpCmdLine, + int nCmdShow); +typedef int (*mainPtr)(int argc, char* argv[]); + +/// +/// Run the main thread on 32-bit Windows using a fiber with the preferred 4MiB +/// stack size. This function must be called at the top of the executable entry +/// point function (`main()` or `wWinMain()`). It is used in combination with +/// the initial stack size of 0.5MiB configured via the `/STACK:0x80000` linker +/// flag on executable targets. This saves significant memory on threads (like +/// those in the Windows thread pool, and others) whose stack size can only be +/// controlled via the linker flag. +/// +/// CEF's main thread needs at least a 1.5 MiB stack size in order to avoid +/// stack overflow crashes. However, if this is set in the PE file then other +/// threads get this size as well, leading to address-space exhaustion in 32-bit +/// CEF. This function uses fibers to switch the main thread to a 4 MiB stack +/// (roughly the same effective size as the 64-bit build's 8 MiB stack) before +/// running any other code. +/// +/// Choose the function variant that matches the entry point function type used +/// by the executable. Reusing the entry point minimizes confusion when +/// examining call stacks in crash reports. +/// +/// If this function is already running on the fiber it will return -1 +/// immediately, meaning that execution should proceed with the remainder of the +/// entry point function. Otherwise, this function will block until the entry +/// point function has completed execution on the fiber and then return a result +/// >= 0, meaning that the entry point function should return the result +/// immediately without proceeding with execution. +/// +CEF_EXPORT int cef_run_winmain_with_preferred_stack_size(wWinMainPtr wWinMain, + HINSTANCE hInstance, + LPWSTR lpCmdLine, + int nCmdShow); +CEF_EXPORT int cef_run_main_with_preferred_stack_size(mainPtr main, + int argc, + char* argv[]); +#endif // defined(ARCH_CPU_32_BITS) + +/// +/// Call during process startup to enable High-DPI support on Windows 7 or +/// newer. Older versions of Windows should be left DPI-unaware because they do +/// not support DirectWrite and GDI fonts are kerned very badly. +/// +CEF_EXPORT void cef_enable_highdpi_support(void); + +/// +/// Set to true (1) before calling Windows APIs like TrackPopupMenu that enter a +/// modal message loop. Set to false (0) after exiting the modal message loop. +/// +CEF_EXPORT void cef_set_osmodal_loop(int osModalLoop); + +#ifdef __cplusplus +} +#endif + +#endif // defined(OS_WIN) +#endif // CEF_INCLUDE_INTERNAL_CEF_APP_WIN_H_ |