controls: subclass generic "ALFControl" window

The idea is that the compiler can strip unused controls when linking
statically, but the window class initialization functions blocked that.

1 files changed, 8 insertions, 33 deletions

diff --git a/alf/alfgroupbox.cpp b/alf/alfgroupbox.cpp
index 5c459dc..bfe5519 100644
--- a/alf/alfgroupbox.cpp
+++ b/alf/alfgroupbox.cpp
@@ -5,8 +5,6 @@
 #define GBS_DISABLED 2
 #define TMT_TEXTCOLOR 3803
 
-TCHAR *_alf_groupboxClass = NULL;
-
 typedef struct {
     ALFLayout layout;
     HTHEME    theme;
@@ -342,40 +340,17 @@ ALF_GroupBox_WindowProc(HWND window, UINT msg, WPARAM wparam, LPARAM lparam)
     return DefWindowProc(window, msg, wparam, lparam);
 }
 
-void
-ALF_RegisterGroupBoxClass(void)
-{
-    WNDCLASS cls;
-    ZeroMemory(&cls, sizeof(cls));
-
-    TCHAR  classNameBuf[256];
-    ALF_BuildUniqueName(classNameBuf, TEXT("ALFGroupBox."), (ULONG_PTR)&_alf_groupboxClass);
-
-    cls.hInstance = ALF_HINSTANCE;
-    cls.hCursor = LoadCursor(NULL, (LPTSTR)IDC_ARROW);
-    cls.lpszClassName = classNameBuf;
-    cls.cbWndExtra = sizeof(void*);
-    cls.lpfnWndProc = ALF_GroupBox_WindowProc;
-
-    ATOM classatom = RegisterClass(&cls);
-    if (!classatom)
-        MessageBox(NULL, TEXT("FATAL: Could not register groupbox class"), NULL, MB_OK);
-
-    _alf_groupboxClass = MAKEINTATOM(classatom);
-}
-
 HWND
 ALF_AddGroupBox(HWND parent, WORD id, int x, int y, const TCHAR *text)
 {
-    HWND hwndPanel = CreateWindowEx(WS_EX_CONTROLPARENT,
-                                    _alf_groupboxClass,
-                                    text,
-                                    WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_TABSTOP,
-                                    0, 0, 0, 0,
-                                    parent,
-                                    (HMENU)(UINT_PTR)id,
-                                    ALF_HINSTANCE,
-                                    NULL);
+    HWND hwndPanel = ALF_CreateControlWindow(WS_EX_CONTROLPARENT,
+                                             text,
+                                             WS_CHILD | WS_VISIBLE | WS_CLIPCHILDREN | WS_TABSTOP,
+                                             0, 0, 0, 0,
+                                             parent,
+                                             (HMENU)(UINT_PTR)id,
+                                             ALF_GroupBox_WindowProc,
+                                             NULL);
 
     ALF_AddWidget(parent, x, y, hwndPanel, 0, 0, ALF_LAYOUT_SIZE_QUERY | ALF_LAYOUT_INHERITFONT | ALF_LAYOUT_INHERITBGCOLOR | ALF_LAYOUT_SENDBGCHANGE | ALF_LAYOUT_SENDDPICHANGE);