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// Copyright (c) 2012-2014 The CEF Python authors. All rights reserved.
// License: New BSD License.
// Website: http://code.google.com/p/cefpython/
// Windows only
#pragma comment(lib, "Gdi32.lib")
#include
#include "dpi_aware.h"
#include "include/wrapper/cef_closure_task.h"
#include "include/base/cef_bind.h"
#include "LOG_DEBUG.h"
const int DEFAULT_DPIX = 96;
bool IsProcessDpiAware() {
typedef BOOL(WINAPI *IsProcessDPIAwarePtr)(VOID);
IsProcessDPIAwarePtr is_process_dpi_aware_func =
reinterpret_cast(
GetProcAddress(GetModuleHandleA("user32.dll"),
"IsProcessDPIAware"));
BOOL is_aware = FALSE;
if (is_process_dpi_aware_func) {
is_aware = is_process_dpi_aware_func();
if (is_aware == TRUE) {
return true;
}
}
// GetProcessDpiAwareness is available only on Win8. So it
// should be called only as a back-up plan after IsProcessDPIAware
// was called. Also if IsProcessDPIAware returned false,
// then GetProcessDpiAwareness is called as well.
if (GetProcessDpiAwareness() != PROCESS_DPI_UNAWARE) {
return true;
}
return false;
}
PROCESS_DPI_AWARENESS GetProcessDpiAwareness() {
// Win8.1 supports monitor-specific DPI scaling, so it is
// recommended to use GetProcessDPIAwareness instead of the
// deprecated IsProcessDPIAware.
typedef HRESULT(WINAPI *GetProcessDpiAwarenessPtr)
(HANDLE,PROCESS_DPI_AWARENESS*);
GetProcessDpiAwarenessPtr get_process_dpi_awareness_func =
reinterpret_cast(
GetProcAddress(GetModuleHandleA("user32.dll"),
"GetProcessDpiAwarenessInternal"));
if (get_process_dpi_awareness_func) {
HANDLE hProcess = OpenProcess(PROCESS_ALL_ACCESS, false,
GetCurrentProcessId());
PROCESS_DPI_AWARENESS result;
HRESULT hr = get_process_dpi_awareness_func(hProcess, &result);
if (SUCCEEDED(hr)) {
return result;
}
// Possible failures include E_INVALIDARG or E_ACCESSDENIED.
LOG_DEBUG