其中d_func()是宏定义Q_DECLARE_PRIVATE(QWidget)中定义的,获取QWidgetPrivate指针的函数。有点奇怪的是,这里怎么没有用Q_D宏定义,与之前的风格有点不同。 QWidgetPrivate::init()里做了什么动作呢?(关键语句用颜色标记) 1 void QWidgetPrivate::init(QWidget *parentWidget, Qt::WindowFlags f) 2 { 3 ...
HWND parentHWND =GetAncestor(ww->handle(), GA_PARENT);constHWND desktopHwnd =GetDesktopWindow();constQWindowsContext *ctx = QWindowsContext::instance();while(parentHWND && parentHWND != desktopHwnd) {if(QWindowsWindow *ancestor = ctx->findPlatformWindow(parentHWND))returntopLevelOf(ancestor->windo...
Private Declare Function GetWindowThreadProcessId Lib "user32" (ByVal hwnd As Long, lpdwProcessId As Long) As Long Private Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long Private Declare Function OpenProcess Lib ...
const auto *ww = static_cast<const QWindowsWindow *>(handle); if (ww->isEmbedded()) { HWND parentHWND = GetAncestor(ww->handle(), GA_PARENT); const HWND desktopHwnd = GetDesktopWindow(); const QWindowsContext *ctx = QWindowsContext::instance(); while (parentHWND && parentHWND != desk...
// e.g. in case of embedded ActiveQt servers. They should not be considered a top-level// windows in such cases.QVariant prop=w->property(QWindowsWindow::embeddedNativeParentHandleProperty);if(prop.isValid()){embedded=true;parentHandle=reinterpret_cast<HWND>(prop.value<WId>());}if(...
Declare Function PostMessage Lib "user32" Alias "PostMessageA" (ByVal hwnd As Long, ByVal wMsg As Long, ByVal wParam As Long, lParam As Any) As Long 参数hwnd 是你要发送消息的目标程序上某个控件的句柄,参数wMsg 是消息的类型,表示你要发送什么样的消息,最后wParam 和lParam 这两个参数是随消...
Declare Function MessageBox Lib "user32" Alias "MessageBoxA" (ByVal hwnd As Long, ByVal lpText As String, ByVal lpCaption As String, ByVal wType As Long) As Long 参数说明: hWnd: 指定该对话框的所有者窗口。如果该参数为空(0),则该对话框不属于任何窗口(?)。 lpText: 显示在对话框...
Declare Function GetModuleFileName Lib "kernel32" Alias "GetModuleFileNameA" (ByVal hModule As Long, ByVal lpFileName As String, ByVal nSize As Long) As Long 05 06Private Function GetWinCaption(hwnd) As String 07 Dim sTitle As String 08 sTitle = String(GetWindowTextLength(hwnd), 0) 09 ...
Private Declare Function GetDC Lib "user32" (ByVal hwnd As Long) As Long Dim iBitmap As Long, iDC As Long Private Sub Form_Paint() 'KPD-Team 2000 'URL: http://www.allapi.net/ 'E-Mail: KPDTeam@Allapi.net '-> Compile this code for better performance Dim bi24BitInfo As BITMAP...
* mpv_handle it belongs to is released. */ typedef struct mpv_opengl_cb_context mpv_opengl_cb_context; typedef void (*mpv_opengl_cb_update_fn)(void *cb_ctx); typedef void *(*mpv_opengl_cb_get_proc_address_fn)(void *fn_ctx, const char *name); /** * Set the callback that noti...