Added gvimfullscreen that has gruvbox background.

Also, added code for it. Compile it using cl.exe!

Author: CaffeineViking

.gitignore

@@ -1 +1,4 @@
 desktop.ini
+gvimfullscreen.exp
+gvimfullscreen.lib
+gvimfullscreen.obj

.vimrc

@@ -197,12 +197,8 @@
             if has("win32")
                 set shellslash " Fix for Fugitive.
                 set guifont=Hack:h10,Monospace:h10
-                " Below we load a DLL which removes annoying GTK padding to get borderless fullscreen!
-                if has("win64")
-                    map <F11> <Esc>:call libcallnr("gvimfullscreen_64.dll", "ToggleFullScreen", 0)<CR>
-                else
-                    map <F11> <Esc>:call libcallnr("gvimfullscreen_32.dll", "ToggleFullScreen", 0)<CR>
-                endif
+                " Below we load a DLL which removes the ugly GTK padding when going fullscreen.
+                map <F11> <Esc>:call libcallnr("gvimfullscreen.dll", "ToggleFullScreen", 0)<CR>
             else
                 set guifont=Hack\ 10,Monospace\ 10
             endif

gvimfullscreen.c

@@ -0,0 +1,97 @@
+// cl /LD /O2 user32.lib gdi32.lib gvimfullscreen.c
+
+#include <windows.h>
+
+int g_x, g_y, g_dx, g_dy;
+
+BOOL CALLBACK EnumChildProc(HWND hwnd, LPARAM lParam);
+
+BOOL CALLBACK FindWindowProc(HWND hwnd, LPARAM lParam)
+{
+    HWND* pphWnd = (HWND*)lParam;
+
+    if (GetParent(hwnd))
+    {
+        *pphWnd = NULL;
+        return TRUE;
+    }
+
+    *pphWnd = hwnd;
+    return FALSE;
+}
+
+LONG _declspec(dllexport) ToggleFullScreen()
+{
+    HWND hTop = NULL;
+    DWORD dwThreadID;
+
+    dwThreadID = GetCurrentThreadId();
+    EnumThreadWindows(dwThreadID, FindWindowProc, (LPARAM)&hTop);
+
+    if (hTop)
+    {
+        if (GetWindowLong(hTop, GWL_STYLE) & WS_CAPTION)
+        {
+            MONITORINFO mi;
+            RECT rc;
+            HMONITOR hMonitor;
+
+            GetWindowRect(hTop, &rc);
+            hMonitor = MonitorFromRect(&rc, MONITOR_DEFAULTTONEAREST);
+
+            mi.cbSize = sizeof(mi);
+            GetMonitorInfo(hMonitor, &mi);
+
+            g_x = mi.rcMonitor.left;
+            g_y = mi.rcMonitor.top;
+            g_dx = mi.rcMonitor.right - g_x;
+            g_dy = mi.rcMonitor.bottom - g_y;
+
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_EXSTYLE) & ~WS_BORDER);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) & ~WS_CAPTION);
+            SetWindowLong(hTop, GWL_EXSTYLE, GetWindowLong(hTop, GWL_STYLE) & ~WS_EX_CLIENTEDGE);
+            SetWindowLong(hTop, GWL_EXSTYLE, GetWindowLong(hTop, GWL_STYLE) & ~WS_EX_WINDOWEDGE);
+
+            SetWindowPos(hTop, HWND_TOP, g_x, g_y, g_dx, g_dy, SWP_SHOWWINDOW);
+
+            EnumChildWindows(hTop, EnumChildProc, 0);
+        }
+        else
+        {
+            SetWindowLong(hTop, GWL_EXSTYLE, GetWindowLong(hTop, GWL_EXSTYLE) | WS_BORDER);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_CAPTION);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_SYSMENU);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_MINIMIZEBOX);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_MAXIMIZEBOX);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_SYSMENU);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_EX_CLIENTEDGE);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_EX_WINDOWEDGE);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_THICKFRAME);
+            SetWindowLong(hTop, GWL_STYLE, GetWindowLong(hTop, GWL_STYLE) | WS_DLGFRAME);
+
+            SendMessage(hTop, WM_SYSCOMMAND, SC_RESTORE, 0);
+            SendMessage(hTop, WM_SYSCOMMAND, SC_MAXIMIZE, 0);
+        }
+    }
+
+    return GetLastError();
+}
+
+BOOL CALLBACK EnumChildProc(HWND hwnd, LPARAM lParam)
+{
+    char lpszClassName[100];
+    HBRUSH hBrush;
+
+    GetClassName(hwnd, lpszClassName, 100);
+    if (strcmp(lpszClassName, "VimTextArea") == 0)
+    {
+        SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_EX_CLIENTEDGE);
+        SetWindowLong(hwnd, GWL_EXSTYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_EX_WINDOWEDGE);
+        SetWindowPos(hwnd, HWND_TOP, 0, 0, g_dx, g_dy, SWP_SHOWWINDOW);
+
+        hBrush = CreateSolidBrush(RGB(40, 40, 40)); // gruvbox
+        SetClassLong(hwnd, GCLP_HBRBACKGROUND, (LONG_PTR)hBrush);
+    }
+
+    return TRUE;
+}