When I moving the cefclient window, black edge will show in CefBrowserWindow.
It's easy to check after resizing cefclent window.
How can I resolve this?
OS: win11
version: cef_binary_111.2.1+g870da30+chromium-111.0.5563.64_windows64
The codes I edited to create cefclient window as child window in root_window_win.cc as follows:
- Code: Select all
void RootWindowWin::CreateRootWindow(const CefBrowserSettings& settings,
bool initially_hidden) {
REQUIRE_MAIN_THREAD();
DCHECK(!hwnd_);
HINSTANCE hInstance = GetModuleHandle(nullptr);
// Load strings from the resource file.
const std::wstring& window_title = GetResourceString(IDS_APP_TITLE);
const std::wstring& window_class = GetResourceString(IDR_MAINFRAME);
const cef_color_t background_color = MainContext::Get()->GetBackgroundColor();
const HBRUSH background_brush = CreateSolidBrush(
RGB(CefColorGetR(background_color), CefColorGetG(background_color),
CefColorGetB(background_color)));
// Register the window class.
RegisterRootClass(hInstance, window_class, background_brush);
// Register the message used with the find dialog.
find_message_id_ = RegisterWindowMessage(FINDMSGSTRING);
CHECK(find_message_id_);
CefRefPtr<CefCommandLine> command_line =
CefCommandLine::GetGlobalCommandLine();
const bool no_activate = command_line->HasSwitch(switches::kNoActivate);
DWORD dwStyle = WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN;
DWORD dwExStyle = always_on_top_ ? WS_EX_TOPMOST : 0;
if (no_activate) {
// Don't activate the browser window on creation.
dwExStyle |= WS_EX_NOACTIVATE;
}
if (initial_show_state_ == CEF_SHOW_STATE_MAXIMIZED) {
dwStyle |= WS_MAXIMIZE;
} else if (initial_show_state_ == CEF_SHOW_STATE_MINIMIZED) {
dwStyle |= WS_MINIMIZE;
}
int x, y, width, height;
if (initial_bounds_.IsEmpty()) {
// Use the default window position/size.
x = y = width = height = CW_USEDEFAULT;
} else {
x = initial_bounds_.x;
y = initial_bounds_.y;
width = initial_bounds_.width;
height = initial_bounds_.height;
if (is_popup_) {
// Adjust the window size to account for window frame and controls. Keep
// the origin unchanged.
RECT window_rect = {x, y, x + width, y + height};
::AdjustWindowRectEx(&window_rect, dwStyle, with_controls_, dwExStyle);
width = window_rect.right - window_rect.left;
height = window_rect.bottom - window_rect.top;
}
}
browser_settings_ = settings;
HWND hWnd = NULL;
{
//register window class
WNDCLASSEX wc{ 0 };
wc.cbSize = sizeof(wc);
wc.style = CS_OWNDC;
wc.lpfnWndProc = DefWindowProc;
wc.cbClsExtra = 0;
wc.cbWndExtra = 0;
wc.hInstance = hInstance;
wc.hIcon = nullptr;
wc.hCursor = nullptr;
wc.hbrBackground = nullptr;
wc.lpszMenuName = nullptr;
const wchar_t pClassName[] = L"AAAAA";
wc.lpszClassName = pClassName;
wc.hIconSm = nullptr;
RegisterClassEx(&wc);
hWnd = CreateWindowEx(
0, pClassName, L"happy",
WS_CAPTION | WS_SYSMENU | WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN,
200, 400, 640, 480,
nullptr, nullptr, hInstance, nullptr);
ShowWindow(hWnd, SW_SHOW);
dwStyle |= WS_CHILD | WS_TABSTOP;
}
// Create the main window initially hidden.
CreateWindowEx(dwExStyle, window_class.c_str(), window_title.c_str(), dwStyle,
0, 0, 640, 480, hWnd, nullptr, hInstance, this);
CHECK(hwnd_);
if (!called_enable_non_client_dpi_scaling_ && IsProcessPerMonitorDpiAware()) {
// This call gets Windows to scale the non-client area when WM_DPICHANGED
// is fired on Windows versions < 10.0.14393.0.
// Derived signature; not available in headers.
typedef LRESULT(WINAPI * EnableChildWindowDpiMessagePtr)(HWND, BOOL);
static EnableChildWindowDpiMessagePtr func_ptr =
reinterpret_cast<EnableChildWindowDpiMessagePtr>(GetProcAddress(
GetModuleHandle(L"user32.dll"), "EnableChildWindowDpiMessage"));
if (func_ptr) {
func_ptr(hwnd_, TRUE);
}
}
if (!initially_hidden) {
ShowMode mode = ShowNormal;
if (no_activate) {
mode = ShowNoActivate;
} else if (initial_show_state_ == CEF_SHOW_STATE_MAXIMIZED) {
mode = ShowMaximized;
} else if (initial_show_state_ == CEF_SHOW_STATE_MINIMIZED) {
mode = ShowMinimized;
}
// Show this window.
Show(mode);
}
}
