Add NightShot source

include/uploader.hpp

@@ -0,0 +1,24 @@
+#pragma once
+
+#include "config.hpp"
+#include "settings.hpp"
+
+#include <windows.h>
+#include <string>
+#include <vector>
+
+namespace uploader {
+
+struct Result {
+    bool success = false;
+    DWORD httpStatus = 0;
+    std::wstring responseUrl;
+    std::wstring message;
+};
+
+// Result ownership is transferred to the window through
+// WM_NIGHTSHOT_UPLOAD_FINISHED in lParam.
+[[nodiscard]] bool start(HWND notificationTarget, std::vector<BYTE>&& png,
+                         const settings::AppSettings& configuration);
+
+} // namespace uploader