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framelesshelper
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Minor improvements. 

Don't lose original ex-styles.

Signed-off-by: Yuhang Zhao <2546789017@qq.com>
This commit is contained in:
Yuhang Zhao 2020-05-18 11:05:58 +08:00
parent f525b720ce
commit 1951fe38ce
1 changed files with 5 additions and 3 deletions
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8
winnativeeventfilter.cpp
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@ -656,7 +656,7 @@ UINT GetDotsPerInchForWindow(const HWND handle) {
// Return hard-coded DPI if DPI scaling is disabled.
return m_defaultDotsPerInch;
}
if (!m_lpIsWindow(handle)) {
if (!handle || !m_lpIsWindow(handle)) {
if (m_lpGetSystemDpiForProcess) {
return m_lpGetSystemDpiForProcess(m_lpGetCurrentProcess());
} else if (m_lpGetDpiForSystem) {
@ -1028,8 +1028,10 @@ bool WinNativeEventFilter::nativeEventFilter(const QByteArray &eventType,
// SetWindowCompositionAttribute to enable it for this window,
// the whole window will become totally black. Don't know why
// currently.
m_lpSetWindowLongPtrW(msg->hwnd, GWL_EXSTYLE,
WS_EX_APPWINDOW | WS_EX_LAYERED);
m_lpSetWindowLongPtrW(
msg->hwnd, GWL_EXSTYLE,
m_lpGetWindowLongPtrW(msg->hwnd, GWL_EXSTYLE) |
WS_EX_LAYERED);
updateWindow(msg->hwnd, true, false);
// A layered window can't be visible unless we call
// SetLayeredWindowAttributes or UpdateLayeredWindow once.