添加文件说明

andrewbytecoder · andrewbytecoder · commit a8d6c8e52228 · 2023-09-18T23:15:29.000+08:00
diff --git a/qt_imagedragdrop/mainwindow.cpp b/qt_imagedragdrop/mainwindow.cpp
@@ -117,6 +117,7 @@ void MainWindow::dragMoveEvent(QDragMoveEvent *event)
 
 void MainWindow::dropEvent(QDropEvent *event)
 {
+    // 获取mimedata
     if (event->mimeData()->hasFormat("myimage/png")) {
         QByteArray itemData = event->mimeData()->data("myimage/png");
         QDataStream dataStream(&itemData, QIODevice::ReadOnly);

Original file line number	Diff line number	Diff line change
`@@ -117,6 +117,7 @@ void MainWindow::dragMoveEvent(QDragMoveEvent *event)`
`117`	`117`
`118`	`118`	`void MainWindow::dropEvent(QDropEvent *event)`
`119`	`119`	`{`
	`120`	`+ // 获取mimedata`
`120`	`121`	`if (event->mimeData()->hasFormat("myimage/png")) {`
`121`	`122`	`QByteArray itemData = event->mimeData()->data("myimage/png");`
`122`	`123`	`QDataStream dataStream(&itemData, QIODevice::ReadOnly);`