Add support for Qt5

plugins/ProcessMemory/CMakeLists.txt

@@ -4,8 +4,7 @@ project(ProcessMemoryPlugin LANGUAGES CXX)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-# Find Qt
-find_package(Qt6 REQUIRED COMPONENTS Widgets)
+# Qt is found by the parent project; QT variable (Qt5 or Qt6) is inherited
 
 set(CMAKE_AUTOMOC ON)
 set(CMAKE_AUTORCC ON)
@@ -24,7 +23,7 @@ set(PLUGIN_SOURCES
 add_library(ProcessMemoryPlugin SHARED ${PLUGIN_SOURCES})
 
 # Link Qt
-target_link_libraries(ProcessMemoryPlugin PRIVATE Qt6::Widgets)
+target_link_libraries(ProcessMemoryPlugin PRIVATE ${QT}::Widgets ${_QT_WINEXTRAS})
 
 # Platform-specific linking
 if(WIN32)

plugins/ProcessMemory/ProcessMemoryPlugin.cpp

@@ -10,6 +10,9 @@
 #include <QImage>
 #include <QDir>
 #include <QFileInfo>
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0) && defined(_WIN32)
+#include <QtWin>
+#endif
 
 #ifdef _WIN32
 #include <windows.h>
@@ -469,7 +472,11 @@ QVector<PluginProcessInfo> ProcessMemoryPlugin::enumerateProcesses()
                     SHFILEINFOW sfi = {};
                     if (SHGetFileInfoW(path, 0, &sfi, sizeof(sfi), SHGFI_ICON | SHGFI_SMALLICON)) {
                         if (sfi.hIcon) {
+#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
                             QPixmap pixmap = QPixmap::fromImage(QImage::fromHICON(sfi.hIcon));
+#else
+                            QPixmap pixmap = QtWin::fromHICON(sfi.hIcon);
+#endif
                             info.icon = QIcon(pixmap);
                             DestroyIcon(sfi.hIcon);
                         }