Qt for HarmonyOS/qtohosextras doc/Native Window ID Example: Difference between revisions
Fix example page conversion (QTFOROH-2307) |
Add code snippets to example pages (QTFOROH-2307) |
||
| Line 8: | Line 8: | ||
The main window has a button that creates additional windows. For every window the example calls QtOhosExtras::tryGetNativeWindowId() after the window has been shown and displays the result in the window title, or <code><invalid></code> when the returned pointer is null. | The main window has a button that creates additional windows. For every window the example calls QtOhosExtras::tryGetNativeWindowId() after the window has been shown and displays the result in the window title, or <code><invalid></code> when the returned pointer is null. | ||
<syntaxhighlight lang="cpp"> | |||
void setWindowTitleToNativeId(QWidget *window) | |||
{ | |||
auto nativeWindowId = QtOhosExtras::tryGetNativeWindowId(window->windowHandle()); | |||
window->setWindowTitle("ID: " + (nativeWindowId != nullptr ? QString::number(*nativeWindowId) : "<invalid>")); | |||
} | |||
</syntaxhighlight> | |||
'''Note: '''tryGetNativeWindowId() must only be called after the window has been shown, and the returned ID is not guaranteed to remain valid for the lifetime of the application. | '''Note: '''tryGetNativeWindowId() must only be called after the window has been shown, and the returned ID is not guaranteed to remain valid for the lifetime of the application. | ||
Revision as of 10:14, 16 September 2026
< Qt for HarmonyOS / qtohosextras doc
Native Window ID Example
Demonstrates obtaining the native OHOS window ID of a Qt window.
The main window has a button that creates additional windows. For every window the example calls QtOhosExtras::tryGetNativeWindowId() after the window has been shown and displays the result in the window title, or <invalid> when the returned pointer is null.
void setWindowTitleToNativeId(QWidget *window)
{
auto nativeWindowId = QtOhosExtras::tryGetNativeWindowId(window->windowHandle());
window->setWindowTitle("ID: " + (nativeWindowId != nullptr ? QString::number(*nativeWindowId) : "<invalid>"));
}
Note: tryGetNativeWindowId() must only be called after the window has been shown, and the returned ID is not guaranteed to remain valid for the lifetime of the application.