Basic fenster rewrite of the original sfml version, but need to bring back the keyboard controls.

scratchpad/fenstertest.cpp

@@ -0,0 +1,32 @@
+#include "fenster/fenster.h"
+#include "miniaudio.h"
+
+#define W 480*2
+#define H 480
+
+static int run() {
+  Fenster f(W, H, "hello c++");
+  int t = 0;
+  while (f.loop(60)) {
+    for (int i = 0; i < W; i++) {
+      for (int j = 0; j < H; j++) {
+        f.px(i, j) = i ^ j ^ t;
+      }
+    }
+    if (f.key(0x1b)) {
+      break;
+    }
+    t++;
+  }
+  return 0;
+}
+
+#if defined(_WIN32)
+int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR pCmdLine,
+                   int nCmdShow) {
+  (void)hInstance, (void)hPrevInstance, (void)pCmdLine, (void)nCmdShow;
+  return run();
+}
+#else
+int main() { return run(); }
+#endif