add import dialog on windows

engine/app_events.cpp

@@ -3,6 +3,8 @@
 
 #ifdef __ANDROID__
 void displayKeyboard(android_app* mApplication, bool pShow);
+#elif _WIN32
+std::string win32_open_file();
 #endif
 
 
@@ -51,6 +53,10 @@ void App::pick_image(std::function<void(std::string path)> callback)
     callback(path);
 #elif __ANDROID__
     //displayKeyboard(and_app, false);
+#elif _WIN32
+    std::string path = win32_open_file();
+    if (!path.empty())
+        callback(path);
 #endif
 }
 

engine/main.cpp

@@ -81,6 +81,26 @@ void async_unlock()
     }
 }
 
+std::string win32_open_file()
+{
+    OPENFILENAMEA ofn;
+    char fileName[MAX_PATH] = "";
+    ZeroMemory(&ofn, sizeof(ofn));
+    ofn.lStructSize = sizeof(OPENFILENAME);
+    ofn.hwndOwner = hWnd;
+    ofn.lpstrFilter = "Image Files (*.jpg, *.png)\0*.jpg;*.png";
+    ofn.lpstrFile = fileName;
+    ofn.nMaxFile = MAX_PATH;
+    ofn.Flags = OFN_EXPLORER | OFN_FILEMUSTEXIST | OFN_HIDEREADONLY;
+    ofn.lpstrDefExt = "";
+    ofn.lpstrInitialDir = "Missions\\";
+    if (GetOpenFileNameA(&ofn) != NULL)
+    {
+        return fileName;
+    }
+    return "";
+}
+
 struct async_locker
 {
     async_locker() { async_lock(); }