cef_win.h File Reference

#include "include/internal/cef_app_win.h"
#include "include/internal/cef_types_win.h"
#include "include/internal/cef_types_wrappers.h"

Classes
class	CefMainArgs
	Class representing CefExecuteProcess arguments. More...
struct	CefWindowInfoTraits
class	CefWindowInfo
	Class representing window information. More...

Macros
#define	CefCursorHandle   cef_cursor_handle_t
#define	CefEventHandle   cef_event_handle_t
#define	CefWindowHandle   cef_window_handle_t

Functions
int	CefRunWinMainWithPreferredStackSize (wWinMainPtr wWinMain, HINSTANCE hInstance, LPWSTR lpCmdLine, int nCmdShow)
	Run the main thread on 32-bit Windows using a fiber with the preferred 4MiB stack size. More...
int	CefRunMainWithPreferredStackSize (mainPtr main, int argc, char *argv[])
void	CefEnableHighDPISupport ()
	Call during process startup to enable High-DPI support on Windows 7 or newer. More...
void	CefSetOSModalLoop (bool osModalLoop)
	Set to true before calling Windows APIs like TrackPopupMenu that enter a modal message loop. More...

Macro Definition Documentation

CefCursorHandle

#define CefCursorHandle   cef_cursor_handle_t

CefEventHandle

#define CefEventHandle   cef_event_handle_t

CefWindowHandle

#define CefWindowHandle   cef_window_handle_t

Function Documentation

CefEnableHighDPISupport()

void CefEnableHighDPISupport

(

)

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.

CefRunMainWithPreferredStackSize()

int CefRunMainWithPreferredStackSize	(	mainPtr	main,
		int	argc,
		char *	argv[]
	)

CefRunWinMainWithPreferredStackSize()

int CefRunWinMainWithPreferredStackSize	(	wWinMainPtr	wWinMain,
		HINSTANCE	hInstance,
		LPWSTR	lpCmdLine,
		int	nCmdShow
	)

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.

CefSetOSModalLoop()

void CefSetOSModalLoop

(

bool

osModalLoop

)

Set to true before calling Windows APIs like TrackPopupMenu that enter a modal message loop.

Set to false after exiting the modal message loop.