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-rw-r--r--src/main.c39
1 files changed, 38 insertions, 1 deletions
diff --git a/src/main.c b/src/main.c
index 28eacf7..d33408d 100644
--- a/src/main.c
+++ b/src/main.c
@@ -194,6 +194,44 @@ int main(int argc, char **argv)
// create the global xcwm context
context = xcwm_context_open(screen);
+ //
+ xcb_connection_t *connection = xcwm_context_get_connection(context);
+
+ // Check that the X screen size is at least as big as the virtual desktop size
+ ///
+ // (We don't really care about this much, as our composited windows never actually
+ // get drawn onto the X screen)
+ //
+ // But, unfortunately it seems that XTEST mouse click events outside the X screen
+ // size are always delivered to the root window, so the X screen size needs to be
+ // at least as big as the virtual desktop to ensure that mouse click events are
+ // delivered correctly.
+ //
+ // Sizes should match so that X applications that look at the X screen size get
+ // useful information.
+ //
+ // XXX: ideally we would RANDR resize the X screen to the needed size...
+ {
+ const xcb_setup_t *setup = xcb_get_setup(connection);
+ xcb_screen_iterator_t iter = xcb_setup_roots_iterator(setup);
+ xcb_screen_t *screen = iter.data;
+
+ unsigned int x_width = screen->width_in_pixels;
+ unsigned int x_height = screen->height_in_pixels;
+
+ unsigned int win_width = GetSystemMetrics(SM_CXVIRTUALSCREEN);
+ unsigned int win_height = GetSystemMetrics(SM_CYVIRTUALSCREEN);
+
+ printf("X screen has size %d x %d\n", x_width, x_height);
+ printf("Windows virtual desktop has size %d x %d\n", win_width, win_height);
+
+ if ((x_width < win_width) || (x_height < win_height))
+ {
+ fprintf(stderr, "X screen size should match or exceed Windows virtual desktop size\n");
+ exit(0);
+ }
+ }
+
// register interest in some atoms
motif_wm_hints = xcwm_atom_register(context, "_MOTIF_WM_HINTS", XCWM_EVENT_WINDOW_APPEARANCE);
windowState = xcwm_atom_register(context, "_NET_WM_STATE", XCWM_EVENT_WINDOW_APPEARANCE);
@@ -207,7 +245,6 @@ int main(int argc, char **argv)
// (this controls the cursor an application gets over it's windows when it doesn't set one)
#define XC_left_ptr 68
- xcb_connection_t *connection = xcwm_context_get_connection(context);
xcb_cursor_t cursor = xcb_generate_id(connection);
xcb_window_t window = xcwm_window_get_window_id(xcwm_context_get_root_window(context));
xcb_font_t font = xcb_generate_id(connection);