Revert "Remove callbacks from samples"

This reverts commit e715a7e67f.

samples/CPlusPlusWidgets/main.cpp

@@ -51,8 +51,14 @@ public:
 class MyFrame : public wxFrame
 {
 public:
+    ~MyFrame()
+    {
+        vpkc_set_logger(nullptr, nullptr);
+    }
     MyFrame() : wxFrame(nullptr, wxID_ANY, "VelopackCppWidgetsSample", wxDefaultPosition, wxSize(600, 600))
     {
+        vpkc_set_logger(&MyFrame::HandleVpkcLogStatic, this);
+
         // Set background color to white
         // SetBackgroundColour(*wxWHITE);
 
@@ -180,6 +186,23 @@ private:
 
     }
 
+    void HandleVpkcLog(const char* pszLevel, const char* pszMessage)
+    {
+        std::string level(pszLevel);
+        std::string message(pszMessage);
+        wxTheApp->CallAfter([this, level, message]() {
+            if (textArea) { // Ensure textArea is valid.
+                textArea->AppendText(level + ": " + message + "\n");
+            }
+        });
+    }
+
+    static void HandleVpkcLogStatic(void* context, const char* pszLevel, const char* pszMessage)
+    {
+        MyFrame* instance = static_cast<MyFrame*>(context);
+        instance->HandleVpkcLog(pszLevel, pszMessage);
+    }
+
     void HandleProgressCallback(size_t progress)
     {
         wxTheApp->CallAfter([this, progress]()

samples/CPlusPlusWin32/CppWin32Sample.cpp

@@ -38,6 +38,11 @@ INT_PTR CALLBACK    About(HWND, UINT, WPARAM, LPARAM);
 std::wstring        Utf8ToWString(std::string const& str);
 std::string         WStringToUtf8(std::wstring const& wstr);
 
+void handle_vpkc_log(void* pUserData, const char* pszLevel, const char* pszMessage)
+{
+    std::cout << pszLevel << ": " << pszMessage << std::endl;
+}
+
 int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
     _In_opt_ HINSTANCE hPrevInstance,
     _In_ LPWSTR    lpCmdLine,
@@ -52,6 +57,7 @@ int APIENTRY wWinMain(_In_ HINSTANCE hInstance,
 
     // Initialize Velopack log capture
     std::cout << "Velopack C++ Sample App" << std::endl;
+    vpkc_set_logger(handle_vpkc_log, 0);
 
     // This should run as early as possible in the main method.
     // Velopack may exit / restart the app at this point. 

samples/NodeJSElectron/src/index.ts

@@ -1,5 +1,5 @@
 import { app, BrowserWindow } from 'electron';
-import { VelopackApp } from "velopack";
+import { VelopackApp, setVelopackLogger } from "velopack";
 import { initializeUpdates } from "./update"
 // This allows TypeScript to pick up the magic constants that's auto-generated by Forge's Webpack
 // plugin that tells the Electron app where to look for the Webpack-bundled app code (depending on
@@ -9,6 +9,7 @@ declare const MAIN_WINDOW_PRELOAD_WEBPACK_ENTRY: string;
 
 // VelopackApp should be the first thing to run in startup
 // as it may need to quit / restart the application at certain points
+setVelopackLogger((lvl, msg) => console.log(`Velopack [${lvl}] ${msg}`));
 VelopackApp.build().run();
 
 // Configure IPC listener for Velopack update messages