(#17) Windows implementation, WIP

Author: s1hofmann

src/win32/window_manager.cc

@@ -0,0 +1,35 @@
+#include "../window_manager.h"
+#include <windows.h>
+
+BOOL CALLBACK EnumWindowsProc(HWND hwnd, LPARAM lparam) {
+    std::vector<int64_t>* windowHandles = reinterpret_cast<std::vector<int64_t>*>(lparam);
+    if (windowHandles != nullptr) {
+        windowHandles->push_back(reinterpret_cast<int64_t>(hwnd));
+    }
+    return TRUE;
+}
+
+std::vector<int64_t> getWindows() {
+    std::vector<int64_t> windowHandles;
+
+    EnumWindows (&EnumWindowsProc, reinterpret_cast<LPARAM>(&windowHandles));
+
+    return windowHandles;
+}
+
+MMRect getWindowRect(const int64_t windowHandle) {
+    HWND hWnd = reinterpret_cast<HWND>(windowHandle);
+    RECT windowRect;
+    GetWindowRect(hWnd, &windowRect);
+    return MMRectMake(windowRect.left, windowRect.top, windowRect.right - windowRect.left, windowRect.bottom - windowRect.top);
+}
+
+std::string getWindowTitle(const int64_t windowHandle) {
+    HWND hWnd = reinterpret_cast<HWND>(windowHandle);
+    auto BUFFER_SIZE = GetWindowTextLength(hWnd) + 1;
+    LPSTR windowTitle = new CHAR[BUFFER_SIZE];
+
+    GetWindowText(hWnd, windowTitle, BUFFER_SIZE);
+
+    return std::string(windowTitle);
+}